Francine Shapiro Library

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1. Haour, F. (2009, June). Brain source imaging of the alpha rhythm in PTSD patients using the MEG technique. In K. Zaal (Chair), Research). Symposium conducted at the annual meeting of the EMDR Europe Association, Amsterdam, the Netherlands.

Language: English

Format: Conference

Abstract:
In anxiety disorders, such as PTSD, brain imaging has demonstrated local modifications of functional activities using various techniques. In the present study the direct neuronal activities were measured in delta, theta and beta frequencies, using Magnetoencephalagraphy (MEG) which provides very fast temporal response. The technique is neither invasive nor stressful for the patients. Nineteen female volunteers with DSM-IV PTSD were included in the study. The protocol was a script-driven imagery provocation test, achieved with the patients sitting in the MEG apparatus. The scenarios, specific for ach patient, were composed of 4 active conditions: neutral image (N) traumatic memory (T), traumatic memory suppression (TS) and positive image (P) corresponding to 3 minutes where the patient had to imagine the corresponding sequence with eyes closed Measures of heat rate and subjective disturbance (SUD) were measured during the recoding. The MEG data were analysed in the source domain using a spatial filtering approach. Measurement of electrophysiological waves of various rhythms: delta: 1-4 Hetz (Hz), theta: 4.8-5.8 Hz, alpha: 8-12 Hz and beta: 12-25 Hz was obtained. Anatomical information was from MRI imaging. Signal of activation during trauma recall (T-N) were limited to the delta and theta waves and mainly found in the left hemisphere (visual, orbitofrontal and dorsolateral prefrontal and temporal gyrus (BA 8-9-10-11, 18-19, 22, 28) and in the right supra marginal gyrus (Wernicke BA 40). Signal of inhibition during trauma recall (T-N) were found mainly in the left hemisphere, in the delta, alpha and beta waves (visual, orbitofrontal, dorsolateral prefrontal and temporal gyrus (BA 8-9-10-11, 18-18, 22, 28), cingular cortex (BA 23-24, 31, 32), insula (BA 13) and Broca visual cortex (BA 18-19, 43-44). In conclusion trauma recall mainly induces a hypoactivation in the ventromedial prefrontal cortex and in the cingular cortices, structures linked to the experience and regulation of emotions.

Keywords: Alpha Rhythm  Brain Imaging  MEG Technique  Posttraumatic Stress Disorder  PTSD  Research  Symposium  

Accuracy Verified: Yes

2. Haour, F. (2010, June). Brain source imaging using magnetoencephalography (MEG): Modifications in various rhythms during memory recall, in PTSD patients. In Research. Symposium conducted at the annual meeting of the EMDR Europe Association, Hamburg, Germany.

Language: English

Format: Conference

Abstract:
In anxiety disorders, such as PTSD, brain imaging has demonstrated local modifications of functional activities using various techniques. In the present study the direct neuronal activities were measured in delta, theta and beta frequencies, using Magnetoencephalagraphy (MEG) which provides very fast temporal response. The technique is neither invasive nor stressful for the patients. Nineteen female volunteers with DSM-IV PTSD were included in the study. The protocol was a script-driven imagery provocation test, achieved with the patients sitting in the MEG apparatus. The scenarios, specific for ach patient, were composed of 4 active conditions: neutral image (N) traumatic memory (T), traumatic memory suppression (TS) and positive image (P) corresponding to 3 minutes where the patient had to imagine the corresponding sequence with eyes closed Measures of heat rate and subjective disturbance (SUD) were measured during the recoding. The MEG data were analysed in the source domain using a spatial filtering approach. Measurement of electrophysiological waves of various rhythms: delta: 1-4 Hetz (Hz), theta: 4.8-5.8 Hz, alpha: 8-12 Hz and beta: 12-25 Hz was obtained. Anatomical information was from MRI imaging. Signal of activation during trauma recall (T-N) were limited to the delta and theta waves and mainly found in the left hemisphere (visual, orbitofrontal and dorsolateral prefrontal and temporal gyrus (BA 8-9-10-11, 18-19, 22, 28) and in the right supra marginal gyrus (Wernicke BA 40). Signal of inhibition during trauma recall (T-N) were found mainly in the left hemisphere, in the delta, alpha and beta waves (visual, orbitofrontal, dorsolateral prefrontal and temporal gyrus (BA 8-9-10-11, 18-18, 22, 28), cingular cortex (BA 23-24, 31, 32), insula (BA 13) and Broca visual cortex (BA 18-19, 43-44). In conclusion trauma recall mainly induces a hypoactivation in the ventromedial prefrontal cortex and in the cingular cortices, structures linked to the experience and regulation of emotions.

Keywords: Magnetoencephalography  MEG  Memory Recall  Posttraumatic Stress Disorder  PTSD  Research  Rhythms  Symposium  

Accuracy Verified: Yes

3. Wilson, S., Tinker, R., Becker, L., Hofmann, A., & Cole, J. W. (2000, September). EMDR treatment of phantom limb pain with brain imaging (MEG). Presentation at the annual meeting of the EMDR International Association, Toronto, Ontario Canada.

Language: English

Format: Conference

Abstract:
Participants will be able to: 1) decribe phantom limb pain and its parameters; 2) understand the current use of MEG technology with respect to phantom limb pain; and 3) understand and describe EMDR treatment protocol for phantom limb pain.

Keywords: Brain Imaging  MEG  Phantom Limb  

Accuracy Verified: Yes

4. Doering, S., Bisping, V., Nora Liebergesell, N., Hoffkes, B., Junghofer, M., & Dobel, C. (2012). Erfassung neurobiologischer orrelate der EMDR-behandlung bei patienten mit zahnbehandlungsangst [Detection of neurobiological correlates of EMDR treatment in patients with dental anxiety]. Universitätsklinikum Münster, Kliniken, Psychosomatik und Psychotherapie, Forschung, Munster, Deutschland.

Language: German

Format: Other

Abstract:
Im Rahmen des zuvor dargestellten Projektes werden die Patienten vor und nach der EMDR-Intervention mit einer Magnetencephalografie (MEG) untersucht. Dabei soll erfasst werden, ob die erwarteten angstassoziierten kortikalen Aktivierungen nach der EMDR-Behandlung zurückgehen. Als Angst auslösende Stimuli werden im MEG Bilder, Geräusche und Gerüche dargeboten werden, die in Zusammenhang mit der Zahnbehandlung stehen.

As part of the [Wirksamkeit des Eye Movement Desensitization and Reprocessing (EMDR) bei Patienten mit Zahnbehandlungsphobie, (Doering, Bisping, Bohnke)] project a Magnetencephalografie (MEG) will be presented before the patients were examined before and after the EMDR intervention. It should be recognized that the expected angst associated cortical activations to go back to the EMDR treatment. As fear-inducing stimuli in the MEG images, sounds and smells will be presented, which are associated with dental treatment.

The purpose of this study is to find out whether Eye Movement Desensitization and Reprocessing (EMDR) is effective in the treatment of patients with dental phobia. This U.S. National Institues of Health Clinical trial has been completed. (U.S. National Institutes of Health ClinicalTrials.gov Identifier: NCT01207960)

Keywords: Dental Phobia  

Accuracy Verified: Yes

5. Kreitzberg, J. (2011). Using magneto encephalography to determine the therapeutic efficacy of EMDR in the treatment of PTSD. Symposium presented at the Annual Linfield College Science Symposium.

Language: English

Format: Conference

Abstract:
Post-traumatic stress disorder (PTSD) is a condition that can be produced by traumatic experiences. A new study has shown that a brain scan called magneto encephalography (MEG) can identify people who have PTSD with an accuracy of 95%. Sensors measure tiny magnetic fields generated by currents flowing in and around neurons. In addition they have recently stated in the Journal of Neural Engineering that they can now watch the brain as it experiences PTSD. Imaging shows that the brain becomes hyperactive in the right temporal lobe, the location responsible for memory. Besides diagnosing PTSD, the researchers also are able to judge the severity of how much patients are suffering. Eye-movement desensitization and reprocessing (EMDR) was designed in 1987 as a treatment for PTSD. EMDR is a structured eight-phase therapy that allows for adequate reprocessing of dysfunctionally stored memory. In the processing phases the client attends to the disturbing memory in brief intervals of 15-30 seconds while also experiencing bilateral stimulation (eye movements, tones or tapping). The eight phases integrate effective elements of psychodynamic, imaginal exposure, cognitive therapy, interpersonal, experiential, physiological and somatic therapies. Now that we can locate specific biomarkers for PTSD using MEG, my hypothesis is that we will find a statistically significant difference between the control group and the group that has EMDR treatment, and that EMDR will be shown to be effective in resolving PTSD as measured by pre and post therapy MEG scans. Also using the MEG, we may be able to observe those brain actions responsible for the therapeutic efficacy of EMDR and isolate which components of EMDR trigger those brain actions. The significance of finding the answer to these questions could potentially help millions of people overcome years of suffering from psychological pain due to the after effects of severe trauma and restore them to productive lives. It could establish the status of EMDR, assisting in the decision of whether it should be listed among the evidence-based, best-practice therapy modalities and covered by insurance. Also knowing the underlying pathophysiology could contribute to the evolution, revision and refinement of diagnostic constructs for PTSD.

Keywords: Efficacy  Magneto Encephalography  Posttraumatic Stress Disorder  PTSD  Treatment  

Accuracy Verified: Yes