Francine Shapiro Library ~ EMDR Bibliography

Francine Shapiro Library - EMDR Bibliography Links

Choose any combination of the search options below. If you do not wish to include an option in your search, leave the box blank, or select "Any."

Year:
Format:
Language:
Title of Article or Chapter:
Title of Book or Journal:
Author's Last Name:
Keywords:

Your Results - you searched for the keyword Neuroimaging 24 Results

1. van der Kolk, B. A., Hopper, J., & Spinazzola, J. (2004, November). Biological changes in arousal and cortisol following PTSD treatment. Symposium conducted (M. Olff, Chair) at the 20th annual meeting of the International Society of Traumatic Stress Studies, New Orleans, LA.

Language: English

Format: Conference

Abstract:
Effects of treatment of PTSD on psychobiological measures: It is well known that PTSD is associated with changes in several biological systems. However little research has been done on whether it is possible to “reset” these biological systems with effective psychotherapy of pharmacological therapy. This symposium will present data on neuroendocrine and neuroimaging outcome measures.
Biological changes in arousal and cortisol following PTSD treatment: This presentation will discuss the results of a controlled treatment outcome study comparing EMDR, fluoxetine and pill placebo and demonstrate how effective treatment resulted in changes in memory processes, utilizing the Traumatic Memory Inventrory. In the EMDR condition, but not fluoxetine, the change in traumatic memory towards an integrated narrative was linearly correlated with physiological arousal in response to script driven imagery. This presentation will also present the relationship between clinical improvement in the three conditions and change in the cortisol response to a dexamethasone challenge.

Keywords: Fluoxetine Pill Placebo Posttraumatic Stress Disorder PSTD Symposium

Accuracy Verified: Yes

2. Lendl, J. (2002, June). Brain performance and possible EMDR intervention. Presentation at the annual meeting of the EMDR International Association, San Diego, CA.

Language: English

Format: Conference

Abstract:
New brain imaging technologies are giving a clearer picture of how memories are stored and how effective treatment may alter brain function. Neuroimaging researchers Bessel van der Kolk and Daniel Amen are investigating EMDR treatment effects. Van der Kolk is studying how traumatic memories differ from memories of ordinary events, while Amen concentrates on evaluating difficult psychiatric cases, ADD, head trauma, memory problems, dementia, aggression, and exposure to toxic substances. This workhop will focus on Amen's research regarding frequently found patterns of brain performance, including specific area functions and problems from a clinician's view. Significant attention will be devoted to integrating EMDR with the Amen multi-discipline intervention approach for problem brian areas.

Keywords: Amen Brain Performance van de Kolk

Accuracy Verified: Yes

3. Oh, D. H., & Choi, J. (2007). Changes in the regional cerebral perfusion after eye movement desensitization and reprocessing: A SPECT study of two cases. Journal of EMDR Practice and Research, 1(1), 24-30. doi:10.1891/1933-3196.1.1.24.

Language: English

Format: Journal

Abstract:
Eye movement desensitization and reprocessing (EMDR) has emerged as a promising new treatment for trauma and other anxiety-based disorders. However, the neurobiological mechanism of EMDR has not been well understood. This study reports changes in the resting regional cerebral blood flow after successful EMDR treatment in 2 patients with PTSD. Brain 99mTc-ECD-SPECT (Technetium 99m-ethyl cysteinate dimmer-single photon emission computerized tomography) was performed before and after EMDR, and, in addition, a pre- and posttreatment comparison was made with 10 non-PTSD participants as a control group. After EMDR, cerebral perfusion increased in bilateral dorsolateral prefrontal cortex and decreased in the temporal association cortex. The differences between participants and normal controls also decreased. Changes appeared mainly in the limbic area and the prefrontal cortex. These results are in line with current understanding of neurobiology of PTSD. EMDR treatment appears to reverse the functional imbalance between the limbic area and the prefrontal cortex. [Author Abstract]

Keywords: Adults Brain Imaging Females Koreans Motor Traffic Accidents Neuroimaging Neurophysiology Posttraumatic Stress Disorder Psychiatric Inpatients PTSD Rape RCBF Regional Cerebral Blood Flow Single Photon Emission Computerized Tomography Survivors Treatment Effectiveness

Accuracy Verified: Yes

4. Grand, D., Hartung, J., & Bergmann, U. (2007, Novembro). Conversando com… David Grand, John Hartung, Uri Bergmann [Talking with ... David Grand, John Hartung, Uri Bergmann]. Apresentação no I Congresso Ibero-Americano de EMDR, Brasília, Brasil.

Language: Portuguese

Format: Conference

Abstract:
Nos últimos dez anos, as pesquisas sugerem que o Transtorno de Estresse Pós-Traumático (TEPT) seja uma desordem de humor, memória e integração somatossensorial. Estudos com neuroimagens e neuroendocrinologia têm demonstrado marcadores muito claros desse transtorno, destacando a compreensão de que o TEPT seja uma desordem neurobiológica e não o reflexo de fraqueza psicológica. Nesta apresentação examinaremos o processo de formação e consolidação da memória, a neurobiologia do TEPT e as neuroimagens correspondentes. A integração dessas três linhas ilustrarão os efeitos do TEPT sobre a regulação do humor, memória e integração somatossensorial.

Over the past decade, research suggests that Post-Traumatic Stressm Disorder (PTSD) is a disorder of mood, memory and somatosensory integration. Studies with neuroimaging and neuroendocrinology have markers demonstrated very clear that disorder, highlighting the understanding that PTSD is a neurobiological disorder and not the reflection of psychological weakness. In this presentation we will examine the process formation and consolidation of memory, neurobiology of PTSD and neuroimaging corresponding. The integration of these three lines illustrate the effects of PTSD on the regulation of mood, memory and somatosensory integration.

Keywords: Neurobiology Posttraumatic Stress Disorder PTSD

Accuracy Verified: Yes

5. Pagani, M., Högberg, G., Fernandez, I., & Siracusano, A. (2013). Correlates of EMDR therapy in functional and structural neuroimaging: A critical summary of recent findings. Journal of EMDR Practice and Research, 7(1), 29-38. doi:10.1891/1933-3196.7.1.29.

Language: English

Format: Journal

Abstract:
Neuroimaging investigations of the effects of psychotherapies treating posttraumatic stress disorder (PTSD), including eye movement desensitization and reprocessing (EMDR), have reported findings consistent with modifications in cerebral blood flow (CBF; single photon emission computed tomography [SPECT]), in neuronal volume and density (magnetic resonance imaging [MRI]), and more recently in brain electric signal (electroencephalography [EEG]). Additionally in the recent past, EMDR- related neurobiological changes were monitored by EEG during therapy itself and showed a shift of the maximal activation from emotional limbic to cortical cognitive brain regions. This was the first time in which neurobiological changes occurring during any psychotherapy session have been reported, making EMDR the first psychotherapy with a proven neurobiological effect. The purpose of this article was to review the results of functional and structural changes taking place at PTSD treatment and presented during the period of 1999–2012 by various research groups. The reported pathophysiological changes are presented by neuropsychological technique and implemented methodology and critically analyzed.

Keywords: EEG Limbic System MRI Neurobiology SPECT

Accuracy Verified: Yes

6. Kavakci, O., Dogan, O., & Kugu, N. (2010, September). EMDR (Göz hareketleri ile fuyarsızlaştırma ve yeniden işleme): Psikoterapide farklı bir deçenek [EMDR (eye movement desensitization and reprocessing): A different option in psychotherapy]. Düşünen Adam Psikiyatri ve Nörolojik Bilimler Dergisi, 23(3), 195-205.

Language: Turkish

Format: Journal

Abstract:
Göz hareketleriyle duyarsızlaştırma ve yeniden işleme (EMDR: Eye Movement Desensitization and Reprocessing), son yıllarda oldukça ilgi çeken terapi yöntemlerinden biridir. Bu ilginin bir nedeni, özellikle Travma Sonrası Stres Bozukluğu (TSSB) tedavisindeki etkinliğinin pek çok çalışma ile gösterilmiş olmasıdır. EMDR, bilgi işleme süreçlerini kolaylaştıran ve travmatik anı parçalarının bütünleşmesini sağlayan yenilikçi bir terapi yöntemidir. Bu yaklaşımla bilginin gelecekte daha iyi işlevsellik sağlayacak şekilde işlenmesi sağlanır. Son yıllarda, tedavi kılavuzlarında ve meta analizlerinde EMDR, önerilen tedaviler arasında belirtilmektedir. Travma ve sonrası bozuklukların görülme sıklığı oldukça yüksektir. Buna karşın, Türkçe alanyazında bu bozuklukların tedavi seçenekleri ile ilgili yayınlar oldukça sınırlıdır. EMDR’nin etki mekanizması henüz tam olarak aydınlanmamıştır. Shapiro bir uyumsal bilgi işleme modeli önermiştir. Daha sonra, çeşitli araştırmacılar laboratuvar ve görüntüleme yöntemlerine dayanan çeşitli nörobiyolojik modeller önermişlerdir. Bu çalışmada, EMDR ve sekiz evresi açıklanmış, bir olgu örneği, seans kayıtları ile sunularak uygulaması gösterilmiş ve bu tekniğin çalışma biçimi açıklanmış, etki mekanizması ile ilgili önerilen nörobiyolojik modeller özetlenmiş, Türkiye’de EMDR ile yapılan az sayıdaki yayın gözden geçirilmiştir. Bu tekniğin ruh sağlığı çalışanlarının uygulamalarına daha çok girmesi, hem uygulayıcıların psikiyatrik bozukluklar üzerindeki yetkinliklerini arttıracak hem de travma ve benzeri bozukluklardan yakınan hastalara hızlı iyileşme şansı verecektir.

In recent years, there has been an interest in using the EMDR (Eye Movement Desensitization and Reprocessing) therapy. One of the reasons for this interest may be its effectiveness shown by numerous studies, especially, conducted with individuals who suffer from Post Traumatic Stress Disorder (PTSD). The EMDR is known to be an innovative approach that accelerates information processing and facilitates the integration of fragmented traumatic memories. This process is stated to allow better integration of the information that a person has to handle in the future. Recent practice guidelines and meta-analyses have designated the EMDR as a first-line treatment for trauma. Although the prevalences of trauma and trauma related disorders are high in Turkey, there has been a limited number of published studies highlighting treatment options. The EMDR’s mechanism of action has not yet been fully explained. Shapiro has proposed an adaptive information processing model. Later, based on laboratory and neuroimaging methods, a number of neurobiological models have been suggested. The present study explained the EMDR and its eight-phases. A case example with session records was provided to show the application and operation of the technique. After that, leading neurobiological models which attempt to explain the mechanisms of action of the EMDR were summarized. Finally, few studies conducted in Turkey using the EMDR were reviewed. Given the effectiveness of the EMDR regarding trauma and related disorders, the utilization of the technique by a broad number of mental health professionals may not only increase the professionals’ competency on psychiatric disorders, but also may provide patients suffering from these disorders a chance to recover in a relatively short period of time.

Keywords: Neurobiology Posttraumatic Stress Disorder PTSD Therapy

Accuracy Verified: Yes

7. Bergmann, U. (2010). EMDR’s neurobiological mechanisms of action: A survey of 20 years of searching. Journal of EMDR Practice and Research, 4(1), 22-42. doi:10.1891/1933-3196.4.1.22.

Language: English

Format: Journal

Abstract:
Historically, mechanisms of action have often been difficult to ascertain. Thus far, the definitive discovery of eye movement desensitization and reprocessing (EMDR)’s underlying mechanisms has been equally elusive. We review the neurobiological studies of EMDR, as well as the theoretically driven speculative models that have been posited to date. The speculative theoretically driven models are reviewed historically to illustrate their growth in neurobiological complexity and specificity. Alternatively, the neurobiological studies of EMDR are reviewed with regard to their object of investigation and categorized as follows: findings before and after EMDR therapy (neuroimaging and psychophysiological studies) and findings during the EMDR set (psychophysiological, neuroimaging, and qEEG studies).

Keywords: Neural Mechanisms Neurobiological Research Speculative Models

Accuracy Verified: Yes

8. Ohtani, T., & Matsuo, K. (2006). Functional abnormality of the prefrontal cortex in posttraumatic stress disorder: Psychophysiology and treatment studies assessed by near-infrared spectroscopy. In N. Kato; M. Kawata, & Pitman, R. K (Eds.), PTSD: Brain mechanisms and clinical implications (pp. 235-245). Tokyo: Springer-Verlag.

Language: English

Format: Book Section

Abstract:
A growing number of functional neuroimaging studies on PTSD have described the abnormal response of amygdala and prefrontal cortex to traumatic stimuli. Abnormal activation of some parts of the prefrontal cortex might possibly be involved in the pathophysiology of PTSD. [Adapted from Text, pp. 235-236]TOPICS TREATED: Near-infrared spectroscopy (NIRS); NIRS studies in PTSD; Neuroimaging studies of treatment in PTSD (Selective-serotonin reuptake inhibitor [SSRI] and Eye movement desensitization and reprocessing [EMDR].([Adapted from Text, pp. 235-236] [Pilots]

Keywords: Brain Imaging Neuroanatomy Posttraumatic Stress Disorder PTSD

Accuracy Verified: Yes

9. Pagani, M. (2013, June). Functional and structural neuroimaging and EEG monitoring related to EMDR and CBT treatments for PTSD. Presentation at the 13th annual conference for the European Society for Traumatic Stress Studies (ESTSS), Bologna, Italy.

Language: English

Format: Conference

Abstract:
In the recent past several neuroimaging studies aimed at evaluating the neural correlates of PTSD-related psychotherapies revealing their neurobiological effects on brain function. Functional studies by single photon emission computed tomography (SPECT) and electroencephalography (EEG) detected changes in cerebral blood flow and neuronal activation patterns, identifying the brain areas implicated in the various components of emotional processing and/or affected by the disorder. Investigations by magnetic resonance imaging (MRI) have also revealed PTSD-related structural changes. The first part of the workshop will review the neuroimaging methodologies and findings in PTSD treatment-related research with an extensive review of previous literature on the neurobiological effects of the various psychotherapies. The second part will deal with the description and implementation in research and clinic of neuropsychological testing with brief comments and discussion about their use in recent studies published by our group. In the third part the EEG monitoring of a complete set of Eye Movement Desensitization and Reprocessing therapies in 30 patients suffering of major trauma as compared to 20 healthy controls will be presented. These findings will also be compared to the neurobiological effects of trauma-focussed Cognitive Behavioural Therapy in a second group of psychologically traumatized clients. The results are the first report ever on the neurobiological changes occurring before, during and after PTSD-related psychotherapies shedding light on the neuronal processes underlying their clinical efficacy. The description and the discussion about the contents of the workshop will provide the audience (1) the necessary information to understand the methodological principles behind neuroimaging techniques (SPECT, EEG and MRI) and their possible applications in research and clinic; (2) the up-dated critical knowledge of the published papers in the field of PTSD-related psychotherapies functional and anatomical studies; (3) the basic research principles and examples to be motivated to start, take part and/or collaborate to functional studies in order to better understand the neural basis of psychotherapeutic techniques. The presented material will represent the state-of-the-art of the current neuroscience PTSD-related research and of the neuroimaging methodologies available at the moment.

Accuracy Verified: Yes

10. Flumeri, F., Salmaso, D., & Pagani, M. (2008, 26-28 Settembre). Impatto dell'EMDR sulle fuzioni e sulla neurobiologia cerebrali [Impact on EMDR and neurobiological brain functions]. In T. Farma (Chair), Simposio, Il modello psicotraumatologico: Un ponte tra indicatori neurobiologici e Psicoterapia. VII Congresso SPR Italia, Modena.

Language: Italian

Format: Conference

Abstract:
Introduzione:negli ultimi anni il numero di studi condotti nell’ambito dei disturbi causati da eventi traumatici ha subito una forte accelerazione rilevando l’esistenza di alterazioni fisiologiche e morfologiche in specifiche aree cerebrali associate sia alla risposta emotiva al trauma che alla insorgenza dei sintomi della sindrome da stress post-traumatico (PTSD). L’impiego delle tecniche di neuroimmagine ha consentito di fare luce sui correlati neurali della psicoterapia, rivelando i suoi effetti neurobiologici sulla funzione cerebrale. Nell’ambito dei diversi approcci psicoterapeutici, l’EMDR (Eye Movement Desensitization and Reprocessing therapy) è emerso come promettente risorsa per il trattamento del trauma e di altri disturbi d’ansia, sebbene ancora non sia stata completamente chiarita la sua modalità di azione sui circuiti neurali. Molte ricerche sono state effettuate per valutare l’efficacia dell’EMDR, ma solo un numero esiguo di esse ha indagato il substrato neurobiologico di questa psicoterapia. Le metodiche di neuroimmagini utilizzate finora per studi sull’EMDR sono la Single Photon Emission Computed Tomography (SPECT) e la Magnetic Resonance Imaging (MRI). La prima raccoglie dati sull’attivita’ cellulare cerebrale mentre la seconda riporta dati anatomici strutturali. Gli studi funzionali condotti con SPECT consentono di identificare le variazioni del metabolismo e del flusso ematico cerebrale, suggerendo un ruolo specifico per ciascuna area cerebrale coinvolta nel complesso meccanismo che sottende il processamento delle emozioni; la MRI consente invece di rilevare la presenza di variazioni morfologiche e volumetriche di specifiche strutture cerebrali. Negli ultimi anni, studi SPECT e MRI, volti ad esaminare gli effetti dell’EMDR sulla fisiopatologia cerebrale in pazienti affetti da disturbi d’ansia, hanno riscontrato sostanziali variazioni del flusso ematico ed alterazioni strutturali di alcune regioni cerebrali in seguito a terapia. L’efficacia dell’EMDR nel trattamento del PTSD è stata confermata da uno studio SPECT su sei soggetti ( Lansing et al.) (1) che ha evidenziato dopo terapia una diminuzione del flusso ematico nel lobo occipitale bilateralmente e nel lobo parietale sinistro e un aumento di flusso nel giro frontale inferiore sinistro. Sempre utilizzando la SPECT Oh e Choi (2) hanno riportato una significativa modificazione del flusso cerebrale in seguito ad EMDR, prevalentemente riscontrabile nell’area limbica e nella corteccia prefrontale. Un recente studio con utilizzo di MRI (3) ha inoltre messo in evidenza un aumento di volume dell’ippocampo in seguito a trattamento con EMDR, aumento invece non riportato in un lavoro di Lindauer et al. su 9 soggetti con PTSD, nonostante il successo clinico della psicoterapia eclettica eseguita (4). Obiettivi: il nostro gruppo ha studiato gli effetti a breve e lungo termine dell’EMDR (5, 6) dimostrando la sua efficacia nel trattamento di soggetti traumatizzati sul lavoro, e una stabilità del miglioramento clinico ottenuto in risposta alla terapia, ancora presente a distanza di tre anni. Nell’ambito dello stesso progetto sono state anche studiate le variazioni del flusso ematico cerebrale e della volumetria di alcune strutture cerebrali in relazione alla terapia con EMDR. Un primo studio SPECT ha analizzato la variazione della distribuzione di flusso in 11 soggetti guariti clinicamente da PTSD in seguito a EMDR messi a confronto con 5 soggetti nei quali la terapia non ha avuto effetto (7). Risultati: è stato evidenziato nei soggetti con remissione sintomatologica significative differenze di flusso in 4 aree corticali, alla disfunzione delle quali sono ascrivibili alcuni sintomi presenti in corso di PTSD. Diminuzioni di flusso post-terapia sono state registrate nell’ippocampo, nella corteccia parieto-occipitale e nella corteccia visiva primaria. L’ippocampo e’ sede della memoria a breve termine; la corteccia parieto-occipitale processa il riconoscimento di volti, dei corpi e delle parole; la corteccia visiva primaria custodisce la memoria visiva degli eventi. La mancata inibizione e/o l’iperattivita’ di queste regioni nel PTSD sono responsabili della rivisitazione patologica dell’evento traumatico e della presenza di flashback ed immagini allucinatorie. Inoltre la corteccia frontale dorsolaterale ha dimostrato un aumento di flusso nei soggetti che hanno risposto positivamente alla terapia. Questa regione chiave oltre ad essere deputata ad inibire la risposta patologica a stimoli che ricordano l’evento traumatico e’ essenziale per i processi di attenzione e di autostima, diminuiti in corso di PTSD e recuperati in seguito alla remissione della malattia. In ulteriori studi che combinano indagini funzionali e strutturali utilizzando SPECT e MRI abbiamo messo in evidenza il valore predittivo delle dimensioni dell’ippocampo riguardo all’efficacia della terapia con EMDR (Pagani et al. sottomesso). Conclusioni: gli effetti della terapia con EMDR sono risultati, unitamente ad un consistente miglioramento della sintomatologia e ad una riduzione della iperreattività a stimoli di carattere emotivo, in una normalizzazione funzionale di alcune aree specifiche e in un aumento del volume ippocampale probabilmente ascrivibile a neo-neurogenesi. Questi risultati sono in linea con la pregressa letteratura e con le attuali conoscenze sul PTSD e suggeriscono basi neurobiologiche dell’effetto terapeutico dell’EMDR confermandone l’impatto funzionale su strutture cerebrali coinvolte in patologie ansiogene. Bibliografia: 1. Lansing et al. (2005). J Neuropsych Clin Neurosci;17(4):526-532. 2. Ho DH and Choi J. (2007). J EMDR Pract Res;1(1):24-30. 3. Bossini et al. (2007). J Neuropsych Clin Neurosci; 19(4):475-476. 4. Lindauer et al. (2005). Psychol Med ; 35 :1-11. 5. Hogberg et al. (2007). Nord J Psych; 61(1):54-61. 6. Hogberg et al. (2008). Psych Res; doi:10.1016/j.psychres.2007.10.019. 7. Pagani et al. (2007). Nuc Med Comm; 28(10):757-65. [Pagani abstract]

Introduction In recent years the number of studies in disorders caused by traumatic events has been greatly accelerated by detecting the existence of morphological and physiological changes in specific brain areas associated with both the emotional response to trauma to the onset of symptoms Post-traumatic stress syndrome (PTSD). The use of neuroimaging techniques has allowed to shed light on the neural correlates of psychotherapy, revealing the neurobiological effects on brain function. Under the different psychotherapeutic approaches, EMDR (eye movement desensitization and reprocessing therapy) has emerged as a promising resource for the treatment of trauma and other anxiety disorders, although still not been fully elucidated its mode of action on neural circuits. Many studies have been carried out to assess the effectiveness EMDR, but only a small number of them have investigated the neurobiological substrate of this psychotherapy. The methods used so far for neuroimaging studies on EMDR are Single Photon Emission Computed Tomography (SPECT) and Magnetic Resonance Imaging (MRI). The first collects data on 'brain cells while the second contains structural anatomical data. The functional studies performed with SPECT to identify changes in metabolism and cerebral blood flow, suggesting a specific role for each brain area involved in the complex mechanism underlying the processing of emotions, instead of MRI allows detection of morphological changes and volume of specific brain structures. In recent years, MRI and SPECT studies, aimed to examine the effects of EMDR on brain pathophysiology in patients with anxiety disorders, have found substantial variations in blood flow and structural alterations of some brain regions after treatment. The effectiveness of EMDR in the treatment of PTSD was confirmed by a SPECT study in six subjects (Lansing et al.) (1) showed that after treatment reduced blood flow in the occipital lobe bilaterally and in left parietal lobe and a increase of flow in left inferior frontal gyrus. Always using SPECT Oh and Choi (2) reported a significant change of cerebral blood flow after EMDR, mainly found in limbic and prefrontal cortex. A recent study using MRI (3) has also highlighted an increase in volume of the hippocampus after treatment with EMDR, but no increase in reported work of Lindauer et al. on 9 subjects with PTSD, despite the clinical success of eclectic psychotherapy performed (4). Objectives: Our group has studied the effects of short and long term EMDR (5, 6) demonstrating its effectiveness in treating traumatized individuals at work, and stability of clinical improvement obtained in response to therapy, yet this distance three years. Within the same project were also studied changes in cerebral blood flow and volume of certain brain structures in relation to treatment with EMDR. A first SPECT study analyzed the change in flow distribution in 11 subjects clinically recovered from PTSD after EMDR compared with 5 subjects in whom treatment had no effect (7). Results: It was shown in patients with symptomatic remission, significant differences in flow in 4 cortical areas, which are attributable to dysfunction of some symptoms of PTSD being present. Flow decreases post-treatment were recorded in the hippocampus, cortex parietal-occipital and primary visual cortex. The hippocampus and 'seat of short-term memory, the parietal-occipital cortex processes the recognition of faces, bodies and words, the primary visual cortex preserves the visual memory of events. The lack of inhibition and / or 'hyperactivity' of PTSD in these regions are responsible for the pathological review of the traumatic event and the presence of flashbacks and hallucinatory images. Moreover, the dorsolateral frontal cortex showed an increase in flow in subjects who responded positively to therapy. This key region in addition to being appointed to inhibit the pathological response to stimuli that recall the traumatic event and 'essential for the processes of attention and self-esteem, decreased in the course of PTSD and recovered following the remission of the disease. In further studies that combine functional and structural investigations using SPECT and MRI have shown the predictive value of the size of the hippocampus on the effectiveness of EMDR therapy (Pagani et al. Submitted). Conclusion: the effects of EMDR therapy were coupled with a significant improvement in symptoms and a reduction of hyperreactivity to stimuli, emotional, functional in a normalization of some specific areas and an increase in hippocampal volume probably due to neo- neurogenesis. These results are consistent with previous literature and with current knowledge about PTSD and suggest a neurobiological basis of therapeutic EMDR confirming the functional impact on brain structures involved in anxiety-disorders. Bibliography: 1. Lansing et al. (2005). J Neuropsych Clin Neurosci, 17 (4) :526-532. 2. I DH and J. Choi (2007). J EMDR pract Res, 1 (1) :24-30. 3. Bossini et al. (2007). J Neuropsych Clin Neurosci, 19 (4) :475-476. 4. Lindauer et al. (2005). Psychol Med, 35 :1-11. 5. Högberg et al. (2007). Nord J Psych, 61 (1) :54-61. 6. Högberg et al. (2008). Psych Res, doi: 10.1016/j.psychres.2007.10.019. 7. Pagani et al. (2007). NUC Med Comm, 28 (10) :757-65. [Pagani abstract]

Keywords: Brain Functions Neurobiology

Accuracy Verified: Yes

11. Kaye, B. (2006). Interactive cognitive motor interweaves during EMDR. Cary, NC: Allied Psychological Services.

Language: English

Format: Other

Abstract:
A new interweave technique is described for when patients are slow to desensitize or when they are emotionally overwhelmed during EMDR treatment. The interweave is comprised of two parallel components: a finger-touching go/no-go tracking task as well as a semantic priming task. The theoretical rationale for the finger-touching task is explained relative to neuroimaging studies of the anterior cingulate cortex and other areas. The rationale for the semantic priming task is explained relative to research about dopaminergic activation projecting from the ventral tegmentum as well as novelty generated orienting responses. A two-stage model is proposed for constructing effective EMDR stimulation techniques.

Keywords: Cognitive Interweave

Accuracy Verified: Yes

12. Pagani, M. (2010, June). Introduction to neuroimaging in EMDR research. Presentation at the annual meeting of the EMDR Europe Association, Hamburg, Germany.

Language: English

Format: Conference

Abstract:
In the recent years the number of neuroimaging studies evaluating neural correlates of psychotherapy has steadily increased revealing its clear neurobiological effects on brain function across a wide range of psychiatric disorders. Functional studies by single photon emission computed tomography (SPECT) and positron emission tomography (PET) detect changes in cerebral blood flow and metabolism patterns, identifying the brain areas processing the various components of emotional processing and/or affected by the disorders. investigations by magnetic resonance imaging (MRI) have also revealed psychiatry disease-related structural changes. The first part of the workshop (20 minutes) will describe the neuroimaging methodologies implemented in EMDR research and their possible clinical implementations will be discussed. In the second part (10 minutes) neuroimaging studies on the neurobiological effect of EMDR will be reviewed (1-5). The third part of the workshop (30 minutes) will deal with the last findings in EMDR research and will focus on a recent studies published by our group on the Journal of Psychiatry Research about the predictive value of MRI on the outcome of EMDR therapy (6).Moreover a collaborator of our group will describe and present the preliminary findings of an ongoing experiment aiming to identify the neurophysiological mechanisms active during EMDR therapy. The description and the discussion about the contents of the workshop will provide the audience 1 the necessary information to understand the methodological principles behind the neuroimaging techniques (PET and SPECT) and their possible applications in research and clinic; 2, the critical knowledge of the limited number of published papers in the field of EMDR-related functional and anatomical studies (1-6); 3. the basic research principles and examples to be motivated to begin, take part and/or collaborate to EMDR research in order to shed light on the neural basis of this fascinating psychotherapeutic technique. The presented material will represent the state-of-the-art of the current neuroscience EMDR-related research and of the neuroimaging methodologies available at the moment. in case more contributions will be included in this workshop the proposed presentation time schedule might change. References: Lansing et al. (2005). J Neuropsych Clin Neurosci; l7(4):526-532. Propper et al. (2007). J Nerv Met Dis; 195:785-788. Ho DH and Choi J. (2007). J EMDR Pract Res; l(l):24-30. Pagani et al. (2007). Nuc Med Comm: 28(10):757-65. Bossini et al (2007). J Neuropsych Clin Neurosci; 19(4):475-476. Nardo et al. (2010). J Psychiatry Res; D0110.1016/jjpsychires.2009.10.014

Keywords: Neuroimaging Research

Accuracy Verified: Yes

13. Bergmann, U. (2011). Les mécanismes d'action neurobiologiques de l'EMDR: Un aperçu de 20 ans de recherche [The neurobiological mechanisms of action of EMDR: An overview of 20 years of research]. Journal of EMDR Practice and Research, 5(2), 23E-45E. doi:10.1891/1933-3196.5.2.E23.

Language: French

Format: Journal

Abstract:
Historiquement, les mécanismes d’action se sont souvent avérés difficiles à identifier. Les mécanismes d’action sous-jacents de l’EMDR échappent encore aujourd’hui aux tentatives de découverte définitive. Nous examinons les études neurobiologiques de l’EMDR ainsi que les modèles spéculatifs théoriques qui ont été proposés à ce jour. Les modèles théoriques spéculatifs sont analysés dans une perspective historique en vue d’illustrer leur évolution en termes de complexité et de spécificité neurobiologique. Les études neurobiologiques de l’EMDR sont également analysées en fonction de leur objet d’investigation et classées selon les données obtenues avant et après la thérapie EMDR (études de neuroimagerie et psychophysiologiques) et selon les données recueillies pendant les séries de stimulations bilatérales alternées en EMDR (études psychophysiologiques, de neuroimagerie et de qEEG).

Historically, the mechanisms of action have often proved difficult to identify. Mechanism actions underlying EMDR still escape the attempts of discovery final. We examine the neurobiological study of EMDR and theoretical speculative models that have been proposed to date. Theoretical models are discussed in a speculative perspective history to illustrate their evolution in terms of complexity and specificity neurobiological. The neurobiological studies of EMDR are also analyzed according to their subject of investigation and classified according to the data obtained before and after EMDR (neuroimaging studies and psychophysiological) and based on data collected during a series of bilateral stimulation alternating in EMDR (psychophysiological studies, neuroimaging and QEEG).

Keywords: Neural Mechanisms Neurobiological Research Speculation

Accuracy Verified: Yes

14. Bergmann, U. (2008). The neurobiology of EMDR: Exploring the thalamus and neural integration. Journal of EMDR Practice and Research, 2(4), 300-314. doi:10.1891/1933-3196.2.4.300.

Language: English

Format: Journal

Abstract:
Recent neuroimaging studies on posttraumatic stress disorder (PTSD) have revealed a consistent decrease in thalamic activity, relative to non-PTSD controls. Empirical studies of the past decade have shown the thalamus to be centrally involved in the integration of perceptual, somatosensory, memorial, and cognitive processes (thalamo-cortical-temporal binding). A theoretical model is proposed to suggest that one underlying mechanism of EMDR stimulation (dual-attention stimulation/bilateral stimulation [DAS/BLS] ) is thalamic activation, specifi cally of the ventrolateral and central-lateral nuclei. It is hypothesized that this may facilitate the repair and integration of somatosensory, memorial, cognitive, frontal lobe and synchronized hemispheric functions that are disrupted in PTSD.

Keywords: 40-Hz Gamma-Band Activity (GBA) Neural Oscillation Thalamo-Cortical-Temporal Binding Thalamus

Accuracy Verified: Yes

15. Pagani, M. (2011, June). Neuroimaging and novel neurobiological findings in EMDR research [Neuroimaging und neuartige neurobiologische erkenntnisse in der EMDR forschung]. Presentation at the annual meeting of the EMDR Europe Association, Vienna, Austria.

Language: English

Format: Conference

Abstract:
In the recent years the number of neuroimaging studies evaluating neural correlates of psychotherapy has steadily increased revealing its clear neurobiological effects on brain function across a wide range of psychiatric disorders. Functional studies by single photon emission computed tomography (SPECT) and positron emission tomography (PET) detect changes in cerebral blood flow and metabolism patterns, identifying the brain areas processing the various components of emotional processing and/or affected by the disorders. Investigations by magnetic resonance imaging (MRI) have also revealed psychiatry disease-related structural changes. The first part of the workshop (20 minutes) will describe the neuroimaging methodologies and findings in PTSD/EMDR research with and extensive review of previous literature on the neurobiological effects of EMDR. The second part of the workshop (20 minutes) will deal with the description and implementation in research and clinic of neuropsychological testing with brief comments and discussion about their use in the recent experiments performed by our group. In the third part the EEG monitoring of a complete set of EMDR therapies in 10 patients suffering of major trauma will be presented. The relative results are the first report ever on the neurobiological changes occurring before, during and after EMDR therapy sheding light on the neuronal processes underlying its clinical efficacy. Learning objectives: The description and the discussion about the contents of the workshop will provide the audience (1) the necessary information to understand the methodological principles behind the neuroimaging techniques (PET, SPECT and MRI) and their possible applications in research and clinic; (2) the critical knowledge of the limited number of published papers in the field of EMDR-related functional and anatomical studies; (3) the basic research principles and examples to be motivated to begin, take part and/or collaborate to EMDR research in order to better understand the neural basis of this fascinating psychotherapeutic technique.

Keywords: Neurobiology Neuroimaging

Accuracy Verified: Yes

16. Bossini, L., Poliziotto, N., Tavanti, M., Calossi, S., Lombardelli, A., Vatti, G., & Castrogiovanni, P. (2006, Febbraio). Neuroimaging e PTSD: Dati morfovolumetrici e loro variazioni dopo trattamento [Neuroimaging and PTSD: Facts morfovolumetrici and their changes after treatment]. Presentazione al Congresso XI SOPSI (Società Italiana di Psicopatologia), Roma, Italia.

Language: Italian

Format: Conference

Abstract:
Introduzione: molti studi concordano sulla riduzione del volume ippocampale nei pazienti affetti da PTSD 1 e che tale alterazione anatomica è correlata con deficit cognitivi e con la gravità dei sintomi. Comunque ad oggi non è stato ancora chiarito se l’atrofia ippocampale rappresenta l’esito di un effetto neurotossico del trauma o, piuttosto, una condizione preesistente che predispone allo sviluppo di alcune patologie psichiatriche. Già da tempo studi su animali dimostrano come lo stress causi atrofia ippocampale e inibizione della neurogenesi, con meccanismi verosimilmente legati ai glucocorticoidi, all’increzione del fattore corticotropo, all’aumento degli aminoacidi eccitatori, all’inibizione fattore neurotrofico cerebrale con perdita della plasticità neuronale. Nell’uomo, tuttavia, i risultati non sono così lineari. Da un lato alcuni studi hanno individuato come fattore principale l’aumento dei glucocorticoidi 2, dall’altro tale teoria è stata fortemente criticata 3. Secondo Yehuda il meccanismo di atrofia ippocampale è dovuto ad un’alterazione dell’asse Ipotalamo-Ipofisi-Surrene (HPA), ma in termini di una bassa increzione di glucocorticoidi che determina un aumento del feedback negativo dell’asse stesso ed un’ipersensibilità recettoriale. Indipendentemente dal meccanismo d’azione, la perdita di neuroni a livello ippocampale nei soggetti che hanno subito eventi traumatici sembra sufficientemente dimostrata e, fino a poco tempo fa, era considerata irreversibile. In realtà l’ippocampo sembra presentare una inusuale e spontanea capacità rigenerativa. Questo dato è stato individuato in molte specie animali e, in un unico studio, anche nell’uomo 4. Inoltre recenti evidenze pre-cliniche e cliniche hanno indicato che gli SSRI (Selective Serotonin Reuptake Inhibitors) promuovono la neurogenesi e riducono l’atrofia ippocampale indotta dallo stress nell’animale 5 e nell’uomo sono in grado di ridurre i sintomi del PTSD, incrementare le dimensioni dell’ippocampo e ridurre i deficit mnesici tipici della patologia 6 7. Un altro fattore che sembra essere in grado di stimolare la neurogenesi negli animali sembra essere “l’ambiente arricchito” verosimilmente tramite i meccanismi molecolari dell’apprendimento che sembrano in grado di attivare la trascrizione dell’mRNA per il Brain Derived Neurotrophic Factor. Questo dato della letteratura supporta il razionale dell’efficacia della psicoterapia anche se l’unico studio che valuta le modificazioni morfostrutturali dopo psicoterapia non ha riportato risultati positivi 8. Gli scopi di questo studio sono: – valutare la presenza di atrofia ippocampale nei pazienti affetti da PTSD (T0-drug-free); – valutare l’effetto della terapia: farmacologica con SSRI e psicoterapica con EMDR (Eye Movement Desensitization and Reprocessing) sia sul piano clinico e neuropsicologico, che sul volume ippocampale, sia sulla memoria (T1). Metodologia: abbiamo analizzato un campione di 20 pazienti, di età compresa tra i 15 ed i 65 anni, reclutati nell’ambulatorio psichiatrico del Policlinico universitario di Siena affetti da PTSD e un gruppo di controllo di soggetti sani appaiati per sesso, età, peso e altezza. I soggetti di entrambi i gruppi sono stati sottoposti ad uno studio morfovolumetrico computerizzato dell’Ippocampo tramite RM (Risonanza Magnetica). Inoltre, i diciassette pazienti con PTSD sono stati valutati tramite la somministrazione di test neuropsicologici e scale psicometriche per approfondire il quadro psicopatologico e valutare l’eventuale presenza di deficit cognitivi. Nei soggetti affetti da PTSD dopo un periodo di sei mesi di terapia psicofarmacologica sono stati ripetuti i test neuropsicologici, le scale psicometriche e l’analisi morfovolumetrica dell’ippocampo tramite RM. Tre pazienti, dopo le valutazioni al T0, hanno effettuato un protocollo terapeutico con solo EMDR e sono stati rivalutati dopo 8 sedute (due mesi). Risultati: i risultati della prima parte sperimentale (T0-drug-free) evidenziano che le dimensioni dell’ippocampo di sinistra nei soggetti affetti da PTSD sono significativamente minori rispetto ai controlli sani. Dai risultati osservati al follow-up (T1-post-terapia) è possibile evincere che la terapia nei soggetti considerati è associata ad un miglioramento della sintomatologia e ad un aumento dei volumi ippocampali, pari al 9,87% per l’ippocampo di destra e dell’8,37% per l’ippocampo di sinistra. Questi dati sono concordi con i dati presenti in letteratura, anche se la percentuale di recupero su base neuroplastica nel nostro studio risulta sensibilmente superiore rispetto ai due studi presenti in letteratura incremento pari al 4,6% 6; pari al 5% 7. I tre pazienti che hanno effettuato terapia con EMDR hanno anch’essi mostrato al T1 un miglioramento sintomatologico (CAPS non più positiva per i criteri diagnostici) ed un aumento medio dei volumi ippocampali pari a 338,25 mm3 per l’ippocampo DX e 357,93 mm3 per l’ippocampo SN. Conclusioni: la terapia nei soggetti considerati si è associata ad un aumento dei volumi ippocampali (9,87%-8,37%). L’aumento dei volumi ippocampali appare rilevante, consistente con i dati in letteratura, sebbene quantitativamente superiore, sottolineando l’efficacia degli SSRI verosimilmente tramite il meccanismo di attivazione della neurogenesi; è ipotizzabile che l’aumento di volume non sia da imputare ad un aumento delle cellule gliali ma ad un aumento di neuroni ippocampali visto il contemporaneo miglioramento clinico. Particolarmente interessante ci sembra il dato relativo all’efficacia clinica e sulla plasticità neurale della EMDR. Questa osservazione su solo tre casi, necessita chiaramente di essere confermata su un campione più ampio ma rappresenta la prima evidenza in letteratura di un’azione della psicoterapia diretta alla struttura cerebrale.

Introduction: Many studies agree on the reduction of hippocampal volume in patients with PTSD and that an anatomical alteration is correlated with cognitive deficits and the severity of symptoms. However to date has not yet been clarified whether hippocampal atrophy is the result of a neurotoxic effect of trauma or, rather, an underlying condition that predisposes to the development of some psychiatric disorders. For some time animal studies show that stress causes hippocampal atrophy and inhibition of neurogenesis, by mechanisms probably related to glucocorticoids, all'increzione corticotropo factor, increased excitatory amino acid, inhibition of brain neurotrophic factor with loss of neuronal plasticity. In humans, however, the results are not so linear. On the one hand, some studies have identified as the main factor increasing glucocorticoid two other such theory was strongly criticized 3. According to Yehuda mechanism of hippocampal atrophy is due to an alteration of hypothalamic-pituitary-adrenal (HPA), but in terms of a low secretion of glucocorticoids leading to an increase of negative feedback axis and the same receptor hypersensitivity . Regardless of the mechanism of action, loss of neurons in hippocampus in people who have suffered traumatic events seems sufficiently established and, until recently, was considered irreversible. In fact, the hippocampus appears to be an unusual and spontaneous regenerative capacity. This figure has been identified in many animal species and in one study in humans 4. Moreover, recent evidence pre-clinical and clinical studies have shown that SSRIs (Selective Serotonin Reuptake Inhibitors) promote neurogenesis and reduce stress-induced hippocampal atrophy in animals 5 and humans are able to reduce symptoms of PTSD, increase the size of the hippocampus and reduce the deficit mnesic typical of the disease 6 7. Another factor that seems to be able to stimulate neurogenesis in animals seems to be "enriched environment" probably through molecular mechanisms of learning that seem able to activate the transcription of mRNA for Brain Derived Neurotrophic Factor. This finding supports the rationale of the literature of the effectiveness of psychotherapy, even if the only study that evaluates changes morphostructural after psychotherapy has shown positive results 8. The aims of this study are: - To evaluate the presence of hippocampal atrophy in patients with PTSD (T0-drug-free) - to assess the effect of therapy: pharmacological SSRI and psychotherapy with EMDR (eye movement desensitization and reprocessing) is a clinical and neuropsychological, and on hippocampal volume, and memory (T1). Methods: We analyzed a sample of 20 patients, aged between 15 and 65, recruited nell'ambulatorio Psychiatric University Hospital of Siena with PTSD and a control group of healthy subjects matched by sex, age, weight and height. Subjects in both groups were subjected to a computerized study morfovolumetrico dell'Ippocampo using MRI (Magnetic Resonance). In addition, seventeen patients with PTSD were assessed through administration of psychometric scales and neuropsychological tests to study the psychopathological picture and evaluate the possible presence of cognitive deficits. In subjects with PTSD after a period of six months of pharmacological therapy were repeated neuropsychological tests, scales psychometric analysis morfovolumetrica hippocampus by MRI. Three patients at T0 after assessments, carried out a treatment protocol with only EMDR and were reassessed after eight sessions (two months). Results: The results of the first experiment (T0-drug-free) show that the size of the left hippocampus in patients with PTSD are significantly lower compared to healthy controls. The results observed during the follow-up (T1-post-therapy) can be inferred that therapy in patients considered to be associated with improvement in symptoms and an increase in hippocampal volume, equal to 9.87% for the right hippocampus and 8, 37% for the left hippocampus. These data are consistent with the data in the literature, although the recovery rate based on neuroplastic in our study is significantly higher than in the two studies in the literature increase of 4.6% 6; 5% 7. The three patients who have treatment with EMDR have also shown an improvement in symptoms at T1 (CAPS no longer positive for the diagnostic criteria) and an average increase in hippocampal volume amounted to 338.25 mm3 for the hippocampus and DX 357, 93 mm3 for the hippocampus SN. Conclusions: Therapy in patients considered was associated with an increase in hippocampal volume (9.87% -8.37%). The increase in hippocampal volume appear to be relevant, consistent with the literature data, although quantitatively greater, stressing the effectiveness of SSRIs probably through the mechanism of activation of neurogenesis, it is conceivable that the increase in volume is attributable to an increase glial cells but an increase of hippocampal neurons seen the simultaneous clinical improvement. Seems particularly interesting given the relative clinical effectiveness of EMDR and neural plasticity. This observation on only three cases, clearly needs to be confirmed on a larger sample but represents the first evidence in the literature of action of psychotherapy directed at brain structure.

Keywords: Posttraumatic Stress Disorder PTSD

Accuracy Verified: Yes

17. Hull, A. M. (2002). Neuroimaging findings in post-traumatic stress disorder: Systematic review. doi:10.1192/bjp.181.2.102. British Journal of Psychiatry, 181(2), 102-110.

Language: English

Format: Journal

Abstract:
Background Findings from neuroimaging studies complement our understanding of the wide-ranging neurobiological changes in trauma survivors who develop post-traumatic stress disorder (PTSD). Aims To determine whether neuroimaging studies had identified structural and functional changes specific to PTSD. Method A review of all functional and structural neuroimaging studies of subjects with PTSD was carried out. Studies were identified using general medical and specific traumatic stress databases and paper searches of current contents and other secondary sources. Results The most replicated structural finding is hippocampal volume reduction, which may limit the proper evaluation and categorisation of experience. Replicated localised functional changes include increased activation of the amygdala after symptom provocation (which may reflect its role in emotional memory) and decreased activity of Broca's area at the same time (which may explain the difficulty patients have in labelling their experiences). Conclusions Evidence from neuroimaging studies has suggested areas of the brain that may be damaged by psychological trauma. The clinical implications of these neuroimaging findings need to be investigated further because they challenge traditional therapeutic approaches.

Keywords: Posttraumatic Stress Disorder PTSD

Accuracy Verified: Yes

18. Koppel, H. (2005, Autumn/Winter). Opinion - Talking therapy and neuroscience - is there a convergence?. BNA British Neuroscience Association [BNA] Bulletin, a newsletter for members of the BNA, 52, 5-6.

Language: English

Format: Newsletter

Abstract:
Most of the effort that has been driving the increasing overlap between talking therapy and neuroscience has come from work that is beginning to understand the cytoarchitecture of the frontal cortex, on the one hand, and techniques like neuroimaging on the other. Non scientists seem to relate more easily to studies that involve humans engaged in some kind of cerebral activity. However, recently, therapists have begun to make what seems to be a contribution to this overlap by developing new therapeutic techniques for working with emotional or psychological issues; techniques that rely less on words, suggesting that there is a neurobiological healing process at work.

Keywords: Neurobiology

Accuracy Verified: Yes

19. van der Kolk, B. A. (2000). Posttraumatic stress disorder and the nature of trauma. Dialogues in Clinical Neuroscience, 2(1), 7-22.

Language: English

Format: Journal

Abstract:
The role of psychological trauma (e.g., rape, physical assaults, torture, motor vehicle accidents) as an etiological factor in mental disorders, anticipated as early as the 19th century by Janet, Freud, and Breuer, and more specifically during World War I and II by Kardiner, was "rediscovered" some 20 years ago in the wake of the psychlogical traumas inflicted by the Vietnam war and the discussion "in the open" of sexual abuse and rape by the women's liberation movement. 1980 marked a major turning point, with the incorporation of the diagnostic construct of PTSD into DSM-III and the definition of its main diagnostic criteria (reexperiencing of the traumatic event, avoidance of stimuli associated with the trauma, and symptoms of increased arousal). Initially described as resulting from a onetime severe traumatic incident, PTSD has now been shown to be triggered by chronic multiple traumas as well. This "state-of-the-art" article discusses past and current understanding of the disorder, with particular emphasis on the recent explosive developments in neuroimaging and other fields of the neurosciences that have highlighted the complex interrelationships between psychological, psychiatric, biological, and neuroanatomical components of the disorder, and opened up entirely new therapeutic perspectives on how to help the victims of trauma overcome their past. [Author Abstract]

Keywords: Etiology Historical Account Posttraumatic Stress Disorder PTSD

Accuracy Verified: Yes

20. van der Kolk, B. A., Burbridge, J. A., & Suzuki, J. (1997, June). The psychobiology of traumatic memory: Clinical implications of neuro imaging studies. Annals of the New York Academy of Sciences, 821, 99-113. doi:10.1111/j.1749-6632.1997.tb48272.x .

Language: English

Format: Journal

Abstract:
Whereas most patients with PTSD construct a narrative of their trauma over time, it is a characteristic of PTSD that sensory elements of the trauma itself continue to intrude as flashbacks and nightmares, altered states of consciousness in which the trauma is relived, unintegrated with an overall sense of self. Because traumatic memories are so fragmented, it seems reasonable to postulate that extreme emotional arousal leads to failure of the central nervous system (CNS) to synthesize the sensations related to the trauma into an integrated whole. Earlier models for a biological substrate of these phenomena have become rapidly outdated with the availability of new information derived from neuroimaging studies of patients with PTSD. The emerging body of knowledge from these studies has stimulated a gradual shift in emphasis away from the neurochemicals involved in the organisms' response to overwhelming threat to a focus on the neuronal filters concerned in the interpretation of sensory information: the interactions between the various parts of the CNS that process and interpret the meaning of incoming information, such as the amygdala, hippocampus, corpus callosum, anterior cingulte, and prefrontal cortex. [Text, p. 99]
Review Article: 58 references. This volume of the Annals was published as "Psychobiology of posttraumatic stress disorder," edited by Rachel Yehuda and Alexander C. McFarlane (New York: New York Academy of Sciences, 1997; ISBN 1-57331-078-6). These papers are the result of a conference entitled "Psychobiology of Posttraumatic Stress Disorder" sponsored by the New York Academy of Sciences, New York, 1996 September 7-10.

Keywords: Brain Imaging Dissociative Amnesia Etiology Literature Review Neuroanatomy Neuroendocrinology Psychobiology PTSD Stressors Survivors Treatment Effectiveness

Accuracy Verified: Yes

21. Corrigan, F. M. (2004). Psychotherapy as assisted homeostasis: Activation of emotional processing mediated by the anterior cingulate cortex. Medical Hypotheses, 63(6), 968-973.

Language: English

Format: Journal

Abstract:
Although psychotherapy is successful in altering emotional distress, the biological mechanism by which it achieves this has not been the subject of intensive neurobiological investigation. Mindful processing of emotion has been proposed to be a key factor in prevention of relapse in depressive illness and here that hypothesis is developed and extended to include other conditions in which emotion processing may be obstructed or dysregulated. Cognitive therapy, interpersonal psychotherapy, psycho-dynamic psychotherapy, and dialectical behaviour therapy, each in a different way and with a distinct emphasis, encourage awareness of emotions and their associated cognitions and biographies, and their varying success may depend on the degree to which they achieve activation of internal healing processes. In eye movement desensitisation and reprocessing (EMDR), the selected target is formatted for endogenous processing which is facilitated and accelerated by eye movements or alternating bilateral auditory or tactile stimulation. The ability to sustain focussed attention on the affect and its visceral, cognitive, and biographical components is postulated to activate a homeostatic process of distress resolution, seen most clearly in treatment of PTSD with EMDR, in which resolution of distress can be intense and rapid while therapist input is non-directive, although supportive, empathic, and non-judgemental. Once the therapist has helped to frame the questions, the patient's brain will find the answers needed for the resolution of the distress and all the components of the traumatic event, whether visceral, cognitive, affective, or interpersonal. The anterior cingulate cortex, especially the dorsal and rostral components, is suggested to be the key neurobiological substrate for the efficacious psychotherapeutic relief of distress, and relevant functional neuroimaging studies are summarised. One limitation of some previous imaging studies of emotion is that they have tended to use mild stimuli to discrete emotions. An alternative approach would be to image the brain during reprocessing of an unpleasant event which has profoundly affected the person so that the associated intense emotions could be clearly labelled and correlated with changes in regional brain functioning. [Author Summary]

Keywords: Cognitive Processes Cognitive Therapy Neurobiology

Accuracy Verified: Yes

22. Kaye, B. (2008). Reversing reciprocal suppression in the anterior cingulated cortex: A hypothetical model to explain EMDR effectiveness. Journal of EMDR Practice and Research, 2(1), 88-99. doi:10.1891/1933-3196.1.2.88.

Language: English

Format: Journal

Abstract:
A theoretical model is proposed to explain desensitization during Eye Movement Desensitization and Reprocessing (EMDR) as resulting from the reversal of reciprocal suppression of cognitive processing in the anterior cingulate cortex (ACC). Dual-attention and error monitoring are known to activate dorsal regions of the ACC that mediate metacognitive processing. Neuroimaging research has produced evidence that cognitive areas in the upper ACC may reciprocally suppress affective processing in the lower areas and vice versa. It is therefore proposed that the original eye-to-finger tracking task of EMDR may achieve its therapeutic effect by using error monitoring to reverse suppression of the upper ACC by the lower ACC. Contributions to EMDR effectiveness from resource installation and novelty-driven orienting reflexes may also influence ACC functioning. A distraction effect is proposed to be a negative and potentially disruptive by-product of very interactive stimulation tasks. A semantic priming procedure is suggested to limit distraction effects during more interactive forms of stimulation. [Author Abstract]

Keywords: Anterior Cingulate Cognitive Processes Neurotransmitters Reciprocal Suppression Semantic Priming

Accuracy Verified: Yes

23. Pagani, M. (2008, Novembre). Sub-strato neurobiologico della sindrome da stress post-traumatico e relativo impatto funzionale e strutturale della terapia con EMDR [Neurobiological substrate of post-traumatic stress syndrome and impact on functional and structural therapy with EMDR]. Presentazione le Applicazioni Cliniche del EMDR Congresso Nazionale, Milano, Italia.

Language: Italian

Format: Conference

Abstract:
Recenti studi hanno dimostrato come la sindrome da stress post-traumatico (PTSD) possa causare nel cervello cambiamenti sia strutturali che funzionali. Studi di imaging funzionale tramite tomografia ad emissione di fotone singolo (SPECT) e ad emissione di positrone (PET) hanno evidenziato significative variazioni del flusso cerebrale in pazienti con PTSD durante la rivisitazione del trauma. A questo proposito sono stati riportati aumenti e diminuzioni di flusso nell’ippocampo, nell’amigdala, nella corteccia prefrontale mediale, nel cingolo anteriore e posteriore e nella corteccia temporale. Il modello prevalente collega i sintomi del PTSD ad una mancata inibizione dell’ amigdala, iperattivata dalla sensazione di incombente minaccia, da parte della corteccia prefrontale. E’ stato anche proposto che i cambiamenti strutturali dell’ippocampo e del cingolo anteriore rivelati dalla risonanza magnetica strutturale (RM) siano causati dalla risposta neuronale allo stress. L’obiettivo delle nostre ricerche e’ stato quello di analizzare la risposta funzionale e le variazioni strutturali in due gruppi di soggetti esposti a trauma occupazionale che hanno sviluppato (S=sintomatici, n=20) o no (NS=non sintomatici, n=27) il PTSD. Una parte dei S (n=16) è stata trattata con EMDR. La diagnosi di PTSD prima e dopo la terapia è stata basata sia sui criteri del DSM-IV sia su vari test neuropsicologici mirati. La SPECT (n=47) e la RM (n=33) sono state eseguite da 3 mesi a sei anni dal trauma e la prima è stata ripetuta dopo EMDR. I sintomi sono stati provocati da uno script individualizzato che ha riportato alla memoria il trauma e durante il quale è stato iniettato il tracciante di flusso cerebrale. Le analisi eseguite hanno mostrato differenze significative tra S e NS nella risposta del flusso cerebrale allo script. Nei 33 soggetti in cui sono state eseguite sia la SPECT che la RM sono state trovate differenze significative sia funzionali che strutturali nella corteccia temporo-parietale sinistra e nell’ippocampo, regioni nelle quali gli score dei test neuropsicologici correlano significativamente con il flusso cerebrale. Nei soggetti con remissione sintomatologica dopo EMDR (R; n=11) sono state trovate rispetto ai soggetti che non hanno risposto alla terapia (NR; n=5) significative differenze di flusso in 4 aree corticali che processano funzioni deteriorate in corso di PTSD. Diminuzioni di flusso dopo la terapia sono state registrate nei R rispetto ai NR nell’ippocampo, nel giro fusiforme (corteccia parieto-occipitale) e nella corteccia visiva primaria. L’ippocampo è sede della memoria episodica ed autobiografica; il giro fusiforme processa il riconoscimento di volti, dei corpi e delle parole; la corteccia visiva primaria custodisce la memoria visiva degli eventi. La mancata inibizione e/o l’iperattività di queste regioni nel PTSD sono responsabili della rivisitazione patologica figurata e somatica dell’evento traumatico e della presenza di flashback ed immagini allucinatorie. Viceversa la corteccia frontale dorsolaterale ha mostrato un aumento di flusso nei R. Questa regione oltre ad essere deputata ad inibire nel sistema limbico la risposta patologica a stimoli che ricordano l’evento traumatico è essenziale per i processi di attenzione e del “senso di sé”, diminuiti in corso di PTSD e recuperati in seguito alla remissione della malattia. In questi soggetti la RM ha inoltre messo in evidenza il valore predittivo delle dimensioni dell’ippocampo rispetto all’efficacia della terapia con EMDR. I nostri risultati confermano il coinvolgimento della corteccia temporo-parieto-occipitale nel PTSD e sottolineano il valore delle neuroimmagini sia nello svelare gli effetti neurobiologici dell’EMDR che determinare il valore delle indagini strutturali nel predirne l’efficacia.

Recent studies have shown that the post-traumatic stress syndrome (PTSD) may result in both structural and functional brain changes. Imaging studies using functional Single photon emission tomography (SPECT) and positron emission tomography (PET) shown significant changes in cerebral blood flow in patients with PTSD during revisiting the trauma. In this regard have been reported increases and decreases in flow hippocampus, amygdala, medial prefrontal cortex, the anterior cingulate and posterior and temporal cortex. The dominant model linking the symptoms of PTSD to a no inhibition of 'amygdala hyperactivity disorder by the sense of impending threat by the prefrontal cortex. E 'was also proposed that the structural changes of the hippocampus and anterior cingulate revealed by structural magnetic resonance imaging (MRI) are caused by the response neuronal stress. The aim of our research and 'was to analyze the response functional and structural variations in two groups of subjects exposed to occupational trauma that have developed (S = symptomatic, n = 20) or not (NS = non-symptomatic, n = 27) PTSD. Part of S (n = 16) was treated with EMDR. The diagnosis of PTSD before and after the therapy was based on both DSM-IV has on several neuropsychological tests targeting. SPECT (n = 47) and MRI (n = 33) are were performed from 3 months to six years from the trauma and the first was repeated after EMDR. Symptoms were caused by a script individual who reported to the memory of the trauma and during which were injected with a tracer of cerebral blood flow. The analysis performed showed significant differences between S and NS in the response of flow brain to the script. In the 33 subjects in which they were performed both SPECT and MRI were found significant differences in both functional and structural temporo-parietal cortex left hippocampus, regions in which the scores of neuropsychological tests correlate significantly with the flow in the brain. In subjects with symptomatic remission after EMDR (R; n = 11) were found compared with subjects who did not respond to therapy (NR, n = 5) significant differences in flow in 4 cortical areas that process functions deteriorated in the course of PTSD. Decreases in flow after treatment were recorded in R than NR hippocampus, within fusiform (parieto-occipital cortex) and in the primary visual cortex. The hippocampus is the seat of episodic memory and autobiographical, and the processes around the fusiform recognition of faces, bodies and words, the primary visual cortex preserves the memory visual events. The non-inhibition and / or 'hyperactivity of these regions in PTSD are responsible for pathological figured revisiting the traumatic event and physical and presence of flashbacks and hallucinatory images. Contrast, the dorsolateral frontal cortex has showed an increase of flow in R. This region in addition to being deputies to inhibit the system limbic response to pathological stimuli that recall the traumatic event is essential for processes of attention and the "sense of self, decreased in the course of PTSD and recovered following remission. In these subjects, MRI has also highlighted the predictive value the size of the hippocampus compared the efficacy of EMDR therapy. Our results confirm the involvement of the temporo-parietal-occipital cortex in PTSD and emphasize the value of neuroimaging in revealing both the neurobiological effects of EMDR that determine the value of the structural surveys in predicting effectiveness.

Keywords: Neurobiology Posttraumatic Stress Disorder PTSD

Accuracy Verified: Yes

24. Levin, P., Lazrove, S., & van der Kolk, B. (1999, January-April). What psychological testing and neuroimaging tell us about the treatment of posttraumatic stress disorder by eye movement desensitization and reprocessing. Journal of Anxiety Disorders, 13(1-2), 159-172. doi:10.1016/S0887-6185(98)00045-0.

Language: English

Format: Journal

Abstract:
To better understand the pathophysiology and treatment of Posttraumatic Stress Disorder (PTSD), standard psychological testing, Rorschach Ink Blot testing, and neuroimaging using Single Photon Emission Computed Tomography (SPECT) were administered to subjects with PTSD prior to and following three sessions of Eye Movement Desensitization and Reprocessing (EMDR). Using this within-subject design, data from one of six subjects in our series is presented as a case report. Following EMDR, the subject experienced improvement in his level of distress, which correlated with decrements in PTSD and depressive symptomatology on psychological testing. Analysis of the Rorschach data corroborated these changes. Among other findings, the Hypervigilance Index went from positive to negative, indicating that the subject was spending less time scanning the environment for threats, and available ego resources also increased, as measured by the Experience Actual variable. Upon recall of the traumatic memory during SPECT scanning, two areas of the brain were hyperactive post-EMDR treatment relative to pretreatment: the anterior cingulate gyrus and the left frontal lobe. These changes were consistent with summed data from four out of six subjects in the ongoing study. An important implication of these findings is that successful treatment of PTSD does not reduce arousal at the limbic level, but instead, enhances the ability to differentiate real from imagined threat. The psychology and neurophysiology of PTSD are discussed in greater detail. (ScienceDirect)

Keywords: Adults Americans Brain Imaging Empirical Study Posttraumatic Stress Disorder PTSD Treatment Effectiveness

Accuracy Verified: Yes