Francine Shapiro Library

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 Your Results - you searched for the keyword Accuracy 14 Results    

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1. Viechtbauer, W. (2007, March). Approximate confidence intervals for standardized effect sizes in the two-independent and two-dependent samples design. Journal of Educational and Behavioral Statistics, 32(1), 39-60. doi:10.3102/1076998606298034.

Language: English

Format: Journal

Abstract:
Standardized effect sizes and confidence intervals thereof are extremely useful devices for comparing results across different studies using scales with incommensurable units. However, exact confidence intervals for standardized effect sizes can usually be obtained only via iterative estimation procedures. The present article summarizes several closed-form approximations to the exact confidence interval bounds in the two-independent and two-dependent samples design. Monte Carlo simulations were conducted to determine the accuracy of the various approximations under a wide variety of conditions. All methods except one provided accurate results for moderately large sample sizes and converged to the exact confidence interval bounds as sample size increased.

Keywords: Confidence Intervals  Effect Size  Standardized Mean Difference  Two-Independent Samples Design  

Accuracy Verified: Yes

2. Pagani, M., Salmaso, D., Looi, J., & Hogberg, G. (2008, June). Brain functional and volumetric analyses post traumatic stress disorder treated by EMDR. Presentation at the annual meeting of the EMDR Europe Association, London, England.

Language: English

Format: Conference

Abstract:
Neuro-imaging investigations in PTSD have reported findings for either functional or structural modifications. Only two studies have investigated the changes in cerebral blood flow (CBF) following EMDR therapy and one single-patient study recently reported EMDR-related structural changes. The aim of this study was to analyse the structural and functional changes occurring in brain regions implicated in the patho-physiology of PTSD along with the impact on CBF and volumetric data after EMDR treatment. Thirty six train drivers having being exposed to traumatic experiences at work were assigned to different two groups: symptomatic (S, n=17) or nonsymptomatic (NS, n=19), according to PTSD diagnosis. SPECT, following administration of an individualised 35 trauma script, and MRI were performed and EMDR therapy was administered to S. According to EMDR outcome S were further subdivided in responders (R, n=11) and non-responders (NS, n=5). One patient was not treated. CBF and volumetric analyses were performed on temporal lobes, hippocampi and nuclei caudati. ANOVA showed a significantly higher CBF distribution in the left temporal lobe of S as compared to NS and the right nc.caudatus was significantly larger in S. The R group had larger hippocampi and nc.caudati as compared to NR and the size of hippocampi correctly identified 81% of R and NR. The increased left temporal lobe CBF distribution among symptomatic PTSD subjects may reflect the affective significance of higher effort in emotional episodic memory stimulation among symptomatic individuals. Hippocampi volume as measured before EMDR was shown to predict with high accuracy the therapy outcome.

Keywords: Posttraumatic Stress Disorder  PSTD  

Accuracy Verified: Yes

3. Hettiarachchi, M. (2007). Brief intervention for post traumatic stress disorder with combined use of cognitive behaviour therapy and eye movement desensitisation reprocessing. Australian e-Journal for the Advancement of Mental Health, 6(1), 1-5.

Language: English

Format: Journal

Abstract:
This case study is of a 23 year old female diagnosed with Post Traumatic Stress Disorder (PTSD) in Sri Lanka, six months following the Asian Tsunami of December 2004. The intervention was conducted in a village clinic on the southern coast of the country. Treatment involved the use of Cognitive Behavioural Therapy (CBT) and Eye Movement Desensitisation Reprocessing (EMDR). The Beck Anxiety Inventory (BAI) was used to monitor levels of anxiety. The Impact of Event Scale (IES) was administered to assess level of intrusion and avoidance (Horowitz, Wilner & Alvarez, 1979). Subjective Units of Distress Scores (SUDS) were obtained to assess level of distress and the Validity of Cognition Scale (VOC) used to assess accuracy of positive beliefs (Shapiro, 2001). A significant reduction in trauma symptoms, levels of distress, intrusion and avoidance were noted at post-treatment. Treatment gains were maintained at one month and nine month follow-up. The combined treatment protocol may be an effective brief intervention to use in situations that require rapid treatments to alleviate personal psychological distress in the aftermath of large scale disasters.

Keywords: Asian Tsunami  Brief Intervention  Clinical Case Study  Cognitive Behavior Therapy  Cognitive Therapy  Emotional Trauma  Natural Disasters  Posttraumatic Stress Disorder  PTSD  

Accuracy Verified: Yes

4. Wagstaff, G. F., Cole, J., Wheatcroft, J., Marshall, M., & Barsby, I. (2007). A componential approach to hypnotic memory facilitation: Focused meditation, context reinstatement and eye movements. Contemporary Hypnosis, 24(3), 97-108. doi:10.1002/ch.334.

Language: English

Format: Journal

Abstract:
Although hypnosis is now less popular as an interviewing technique in forensic investigations than it used to be, recent evidence suggests that some of the components of hypnotic interviewing might still be useful in the development of brief memory facilitation procedures. Two experiments are described which continue this componential approach to hypnotic interviewing. In the first experiment, the effects on episodic memory of a brief context reinstatement (revivication) procedure were examined together with a focused breathing meditation technique which shares similarities with traditional hypnotic induction. A second experiment investigated the effects of horizontal eye movements which some have also associated with hypnotic responding. Results indicated that a combined context reinstatement and focused meditation procedure was more effective than context reinstatement alone in facilitating memory for an emotional event without the increase in false positive errors familiar to more traditional hypnosis techniques. In contrast, an instruction to perform horizontal eye movements was not effective in facilitating memory and, when combined with a suggestion for improved recall, produced higher confidence in incorrect responses. Implications are discussed. [Abstract from author]

Keywords: Accuracy  Confidence  Context Reinstatement  Eye Movements  Forensic Hypnosis  Hypnotism  Interviewing  Meditation  Memory  Memory Facilitation  Testing  

Accuracy Verified: Yes

5. Pastva, A. M. (2008). The effects of rhythmic and arrhythmic eye movements on memory recall. The College of William and Mary, Williamsburg, VA..

Language: English

Format: Dissertation/Thesis

Abstract:
Eye-Movement Desensitization and Reprocessing (EMDR), a therapy that treats many trauma-related disorders by requiring patients to perform rapid eye movements, has raised controversy because it lacks the support of a proven theoretical rationale. A recent theoretical explanation proposes that the eye movements reduce the vividness of the distressing images by disrupting the function of the visuospatial sketchpad (VSSP) of working memory, but support for this model has been weakened by methodological flaws that the current study attempted to overcome. The present study compared the effects of tracking rhythmic and arrhythmic stimuli on the recall of arousing television shock-ads. Eye-movement conditions did not significantly differ in terms of vividness, emotionality, or accuracy of memory as compared to the control condition. Arrhythmic targets increased the negative emotional response and decreased the vividness of the memories, but neither rhythmic nor arrhythmic target patterns produced responses that differed from the control condition. Heart rate recordings taken throughout the study did not suggest that arousal mediates the relationship between eye-movement patterns and vividness. The present study does not support the VSSP theory but provides valuable insights on the direction of future research.

Keywords: Eye  Memory  Visual perception  

Accuracy Verified: Yes

6. Kapoula, Z., Misset, P., Poncet, S., Bruneau, S., & Bucci, M. P. (2007, June). Eye movement patterns during the Rorschach test: Implications for EMDR. Poster presented at the annual meeting of the EMDR Europe Association, Paris, France.

Language: English

Format: Conference

Abstract:
It is hypothesized that eye movements used in EMDR practice influence both memory and emotional state, some laboratory studies provide evidence for such influence (Christman et al, 2003, Neurobiology; Barrowcliff et al., J. Forensic Psychiatry and Psychology, 2004). From a neurophysiological point of view, it is also interesting to examine to what extent some eye movement parameters may be modulated by memory and emotions. For instance, it is well established that memory driven saccades in simplified laboratory tests, present different characteristics (longer preparation time, lower accuracy, lower velocity) than visually guided movement. During EMDR the eye movements (mostly pursuit) are elicited externally by the therapist, yet at the same time the patient is in touch mentally with the traumatic image and related negative emotions. The physiology of such movements might be different and this could be explored with specific studies. Another important issue is to what extent movements of the eyes are helpful in coding and retrieving visual images. Accordingly to scanpath theory, eye movements are cognitively driven by sensory and motor representation; repetitive eye movements to the same area of an image are attributed to checking if the image corresponds to what the observer imagines (Noton & Stack, 1971; Brandt & Stark, 1997). Future laboratory research could bring together such theories and EMDR psychotherapy, e.g., by examining spontaneous eye movements related to negative image.
In this conference, we will present preliminary data from a laboratory study on eye movement patterns during the Roschach test. Eight healthy students conducted the experiment. Seated in front of a computer screen, subjects were equipped with a binocular video eye tracker (Chronos) sampling eye position images from each eye every 4 msec. Instantaneous eye position data were stored on a computer and analyzed afterwards with laboratory software. Each are of the Roschach test was presented for 30 sec., after which, the experimenter (a psychologist) recorded the response given by the subject.
Analysis of eye movement patterns were examined in relation to subjective verbal reports.
Results: The first question asked was to what extent the eye movement pattern reflected the imaged projected by the subject or by the visual properties of the Rorschach image itself. To gain some insight, we concentrated on the cards for which our subjected gave no standard responses, thus very different from one subject to the other (e.g., card IX). Eye movement exploration (the surface of the image explored, its patiaol composition e.g. the resprctive proportion of horizontal versus vertical movements) was correlated with the verbal report and the specific mental imagery (larger surface, multiple focusing points when several personages or objects were imaged). This provides evident for top-down influence; the eyes are exploring the projective interpretative image; repetitive movements back and forth to same points which help in turn consolidate this mental imagery.
Psychological analysis of eye movements (saccades and fixation) was also made. Saccades are found to be as fast as when looking reflexively to single visual targets; during fixations, however, between saccades, the eyes were more instable, particularly the visual uses were crossing at different depths from one fixation to another. Further ongoing analysis will correlate fixation duration and depth instability to spatial and emotional content of the subjective report.

Keywords: Eye Movements  Mechanism of Action  Neurobiology  Poster  Rorschach Test  

Accuracy Verified: Yes

7. Garvey, K. J. (2004). Increased interhemispheric interaction leads to decreased false memories for prose: The effects of degree of handedness and of eye movement-induced cortical activation. University of Toledo, Toledo, OH. AAT 3141037.

Language: English

Format: Dissertation/Thesis

Abstract:
Two experiments examining the effects of mixed handedness (which is associated with increased interhemispheric interaction) and horizontal saccadic eye movements (which are associated with increased bihemispheric cortical activation) on the recognition of prose are reported. In study one mixed handedness was associated with greater accuracy in both rejecting new material and recognizing old material. In study two eye movements resulted in relative improvement of episodic memory. This improvement is hypothesized to reflect increased interaction between the left and right cerebral hemispheres, which is associated with superior episodic memory. Implications for possible neuropsychological mechanisms underlying eye movement desensitization and reprocessing (EMDR), a therapeutic techniquDissertation Abstracts International: Section B: The Sciences and Engineering. 65(7-B), 2005, pp. 3738.e for PTSD, are discussed. [Author Abstract]

Keywords: Cognitive Processes  Empirical Study  Eye Movements  False Memory  Handedness  Interhemispheric Interaction  Neurobiology  Quantitative Study  Posttraumatic Stress Disorder  Prose  PTSD  

Accuracy Verified: Yes

8. Nathanson, D. (1998, July). Locating EMDR:  Affect, scene, and script. Presentation at the annual meeting of the EMDR International Association, Baltimore, MD.

Language: English

Format: Conference

Abstract:
Participants will be able to: 1) learn the language of affect, feeling, emotion, mood, disorders of mood, and script; 2) identify the affect that has precitated someone into patient status; and help the patient identify and understand that affect; and 3) determine with increased accuracy the clinical situations within which EMDR may be expected to work.

Keywords: Affect  

Accuracy Verified: Yes

9. Young, W. C. & Young, L. J. (1997). Recognition and special treatment issues in patients reporting childhood sadistic ritual abuse; Appendix A: Informed consent regarding the treatment of traumatic and dissociative disorders. In G. A. Fraser (Ed.), The Dilemma of Ritual Abuse: Cautions and Guides for Therapists (Clinical Practice, No. 41) (1st ed.) (pp. 65-93, 95-100). Washington, DC: American Psychiatric Press.

Language: English

Format: Book Section

Abstract:
The purpose of this chapter is to review reports of the Sadistic Ritual Abuse (SRA) phenomenon, to discuss credibility of the accounts, and to describe current issues in its treatment, including preparation for treatment, general treatment issues, management of cultic or satanic alters, pharmacological treatment, and controversy over historical accuracy. Controversial trends in the etiology and treatment of SRA cases are also discussed. It should be kept in mind that the controversy surrounding SRA continues to heighten. Actual clinical interpretations may be considerably different if scientific data should support patients' accounts or, from an opposing viewpoint, if a socially contagious, media-influenced syndrome is shown to run its course among dissociative, suggestible individuals. [Text, p. 68]

Keywords: Adults  Child Abuse  Dissociative Amnesia  Dissociative Identity Disorder  Drug Therapy  Etiology  False Memory  Hypnotherapy  Posttraumatic Stress Disorder  Psychotherapeutic Processes  PTSD  Ritual Abuse  Survivors  Treatment Effectiveness  

Accuracy Verified: Yes

10. Cusack, K. J. (2001). Refugee experiences of trauma and PTSD: Effects on psychological, physical, and financial well-being. Western Michigan University. AAT 3028752.

Language: English

Format: Dissertation/Thesis

Abstract:
This study examined the traumatic experiences and psychological symptoms of 60 refugees who were recently resettled in the United States. Subjects were from Cuba, Iraq, Haiti, Sudan, and Bosnia. Data was collected for each subject on traumatic experiences occurring prior to their arrival. In addition, anxiety and depression were assessed using the Hopkins Symptom Checklist (HSC-25). Quality of life and coping skills were assessed using the WHO Quality of Life-BREF and the Coping Styles Questionnaire, respectively. Trained, bi-lingual interviewers assessed for PTSD using the Clinician-Administered PTSD Scale. All instruments were translated into the appropriate language for subjects who did not speak English. Measures were back-translated to assure accuracy of translations. Three months following their arrival, information was collected regarding employment and public assistance. Predictors of PTSD, quality of life, and refugee self-sufficiency were analyzed using multiple regression and logistic regression analyses. Trauma-related variables were predictive of PTSD, which in turn had a negative impact on quality of life and self-sufficiency. Implications for the resettlement programs of government and non-governmental organizations are discussed.

Keywords: Hopkins Symptom Checklist (HSC-25)  Posttraumatic Stress Disorder  PTSD  PTSD Scale  Surveys  

Accuracy Verified: Yes

11. Devilly, G. J. (2011, July). The role of imagery rehearsal with and without eye movements in the creation of false memories. Psychology, Crime and Law, 17(6), 529-543. doi:10.1080/10683160903397524.

Language: English

Format: Journal

Abstract:
This study explored differences in recall accuracy following experimental manipulations of two elements specific to two common approaches to trauma treatment – inducing saccadic eye movements during imagery rehearsal (Eye Movement Desensitization and Reprocessing; EMDR) and imagery rehearsal without eye movements (Imaginal Exposure; IE). The study also looked into whether outcome was related to high suggestibility and distress characteristics. The sample consisted of 48 non-clinical adult participants. The results found no significant difference in false recalls between EMDR and IE. While the EMDR group did make more false recognitions, they also made more correct recalls than the IE group. In effect, those in the EMDR group appear to make more true recalls and more false recollections than those in the IE group.Irrespective of treatment condition, fewer positive words were recalled and recognized than neutral and trauma words. As well as all subjects displaying no avoidant encoding style for trauma words overall, we also noted no avoidant encoding style as a function of trauma history or treatment condition. Our results argue against the avoidant encoding hypothesis for those with a history of trauma and also suggest a lowered response criterion following EMDR.; (AN 25481115)

Keywords: Absorption  CBT  Cognitive Behavior Therapy  Dissociation  Exposure  False Memory  Imagery Rehearsal  

Accuracy Verified: Yes

12. Heitzler, M. (2011, March). Using EMDR with various types of developmental trauma. Symposium conducted at the annual meeting of the EMDR Association of UK & Ireland, Bristol.

Language: English

Format: Conference

Abstract:
We are increasingly recognising how clients suffering from single-event trauma have different treatment needs to those with complex trauma, based on underlying developmental trauma. However, developmental trauma is a very broad, non-specific category - what about different types of developmental trauma? Certain recurring characteristics and features of developmental trauma, based on the developmental stage, the intensity of the traumatising event, the available resources etc can be recognised in the client’s presentation, including posture and body language, habitual cognitions and attitudes and modes of relating and expression. These typologies can assist practitioners both in refining their diagnosis of developmental trauma as well as the accuracy of applying the EMDR protocol. My presentation will build on established psychotherapeutic typologies and classifications of developmental trauma, but beyond establishing the distinguishing features of each category, will focus the material on its relevance for EMDR practitioners.

Keywords: Developmental Trauma  Symposium  

Accuracy Verified: Yes

13. 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

14. Yoeli, F. R., & Prattos, T. (2007, June). When all you have is 90 minutes: A systemic approach to EMDR case conceptualization in times of stress following crisis. Presentation at the annual meeting of the EMDR Europe Association, Paris, France.

Language: English

Format: Conference

Abstract:
When all you have is 90 minutes with the hysterical and/or traumatized client in times of crisis, efficient planning and conceptualization of EMDR casework is essential.
Using EMD(R) as a means of reducing immediate exacerbated stress is effectively enhanced with a genogram format that is brief, and specifically focuses on learned generational reactions to trauma. By tapping into the trans-generational information the processing in crises is facilitated and enhanced.
This suggested case conceptualization and genogram format quickly highlights inherited strengths and resources which is the client’s historical legacy. The client gains perspective recognizes that survival and overcoming the crisis is possible and acquires insight into valuable resources.
Following a crisis, when EMDR therapist and client first meet, the 1st stage is the retelling of the event.
After the story has been told, the EMDR therapist begins to gather historical family information. This has the effect of moving the client one tiny step away from crisis and calming the individual sufficiently for the therapist to begin to assess resources, and potential resources within the family system,
Additionally, the EMDR therapist finds resources for more meaningful and relevant cognitive interweaves while at the same item protecting himself from vicarious traumatization, compassion fatigue, and burn out. The suggested case conceptualization and multi-generational genogram use, uncovers inherited small t and large T trauma material and anxieties as well as leaned dysfunctional behavior patterns which are compounded over time, and which become a source of exacerbated present crisis reactions.
Once identified and recognized this accesses information enables a deeper and faster healing experience for the client.
The therapist recognizes potential pitfalls which may appear during the desensitization of the current crisis and is better prepared to formulate efficient cognitive interweaves as needs, for the current crisis resolution, without going in the reprocessing of the old trauma. This process fine tunes and fine lines the standard protocol for the EMDR session used in crisis interventions.
This format is adaptable and equally useful in standard consulting room sessions with clients for more effective case conceptualization for EMDR sessions. This multigenerational systemic approach enhances attunement, therapeutic clarity and the well being of the individual. It produces insight, recognizes resources and inner strengths and learned behavior patterns quickly
Case examples and a practicum will teach and enable participants to learn and assess for themselves how this multi-generational genogram approach unveils historical characteristics and learned behavior patterns. This systemic approach leads to enhance EMDR case conceptualization, enabling better formulation and accuracy of EMDR protocol components such as the NC and PC to attain more effective processing.

Keywords: Crisis  Early Intervention  

Accuracy Verified: Yes