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Dive into the research topics where Christopher W. Lee is active.

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Featured researches published by Christopher W. Lee.


Cognitive Therapy and Research | 1999

Factor Structure of the Schema Questionnaire in a Large Clinical Sample

Christopher W. Lee; Graham Taylor; John Dunn

Youngs Schema Questionnaire was developed toassist clinicians in the assessment of the cognitions,affects, and behaviours that underlie psychopathology.This study examined the properties of the Schema Questionnaire in an Australian clinicalpopulation (N = 433). In accordance with an earlierstudy, 16 factors, including 15 of the original scalesproposed by Young, emerged as primary components. Ahigher-order factor analysis was also found to closelyresemble the classification system proposed by Young.This solution is shown to fit well with existing modelsof psychopathology.


Journal of Behavior Therapy and Experimental Psychiatry | 2013

A meta-analysis of the contribution of eye movements in processing emotional memories

Christopher W. Lee; Pim Cuijpers

BACKGROUND AND OBJECTIVES Eye Movement Desensitisation and Reprocessing (EMDR) is now considered evidence based practice in the treatment of trauma symptoms. Yet in a previous meta-analysis, no significant effect was found for the eye movement component. However methodological issues with this study may have resulted in a type II error. The aim of this meta-analysis was to examine current published studies to test whether eye movements significantly affect the processing of distressing memories. METHOD A systematic review of the literature revealed two groups of studies. The first group comprised 15 clinical trials and compared the effects of EMDR therapy with eye movements to those of EMDR without the eye movements. The second group comprised 11 laboratory trials that investigated the effects of eye movements while thinking of a distressing memory versus the same procedure without the eye movements in a non-therapy context. The total number of participants was 849. RESULTS The effect size for the additive effect of eye movements in EMDR treatment studies was moderate and significant (Cohens d = 0.41). For the second group of laboratory studies the effect size was large and significant (d = 0.74). The strongest effect size difference was for vividness measures in the non-therapy studies (d = 0.91). The data indicated that treatment fidelity acted as a moderator variable on the effect of eye movements in the therapy studies. CONCLUSIONS Results were discussed in terms of current theories that suggest the processes involved in EMDR are different from other exposure based therapies.


Clinical Psychology & Psychotherapy | 2010

Role and treatment of early maladaptive schemas in Vietnam veterans with PTSD

David M. Cockram; Peter D. Drummond; Christopher W. Lee

The role of early maladaptive schemas in understanding and treating post-traumatic stress disorder (PTSD) was investigated. The first study examined the role of perceived adverse parenting and early maladaptive schemas in the development of PTSD in Australian and New Zealand Vietnam war veterans (n = 220). Veterans diagnosed with PTSD scored higher on the Young Schema Questionnaire (L3) and had higher scores on the Measure of Parental Style than veterans not diagnosed with PTSD. The results suggest that early maladaptive schemas have an important role in the development or maintenance of PTSD in Vietnam veterans. The second study measured at baseline, termination and 3 months the early maladaptive schemas, PTSD, anxiety and depression of war veterans (n = 54) participating in a PTSD group treatment programme that included schema-focused therapy. Scores on the PTSD Checklist, the Hospital Anxiety and Depression Scale, and 17 schemas decreased significantly after treatment. Change scores for the schema treatment were compared with change scores of war veterans (n = 127) who had completed a manualized cognitive-behavioural therapy programme without schema-focused therapy. Pre-treatment measures were similar in both groups. Nevertheless, PTSD and anxiety improved more significantly for the schema-focused therapy group. Together, these findings support the feasibility of schema-focused therapy to assist veterans with PTSD.


Depression and Anxiety | 2016

Critical analysis of the current treatment guidelines for complex PTSD in adults

Ad de Jongh; Patricia A. Resick; Lori A. Zoellner; Agnes van Minnen; Christopher W. Lee; Candice M. Monson; Edna B. Foa; Kathleen Wheeler; Erik ten Broeke; Norah C. Feeny; Sheila A. M. Rauch; Kathleen M. Chard; Kim T. Mueser; Denise M. Sloan; Mark van der Gaag; Barbara O. Rothbaum; Frank Neuner; Carlijn de Roos; Lieve M. Hehenkamp; Rita Rosner; Iva A. E. Bicanic

According to current treatment guidelines for Complex PTSD (cPTSD), psychotherapy for adults with cPTSD should start with a “stabilization phase.” This phase, focusing on teaching self‐regulation strategies, was designed to ensure that an individual would be better able to tolerate trauma‐focused treatment. The purpose of this paper is to critically evaluate the research underlying these treatment guidelines for cPTSD, and to specifically address the question as to whether a phase‐based approach is needed. As reviewed in this paper, the research supporting the need for phase‐based treatment for individuals with cPTSD is methodologically limited. Further, there is no rigorous research to support the views that: (1) a phase‐based approach is necessary for positive treatment outcomes for adults with cPTSD, (2) front‐line trauma‐focused treatments have unacceptable risks or that adults with cPTSD do not respond to them, and (3) adults with cPTSD profit significantly more from trauma‐focused treatments when preceded by a stabilization phase. The current treatment guidelines for cPTSD may therefore be too conservative, risking that patients are denied or delayed in receiving conventional evidence‐based treatments from which they might profit.


Journal of Anxiety Disorders | 2011

The efficacy and psychophysiological correlates of dual-attention tasks in eye movement desensitization and reprocessing (EMDR)

Christopher W. Lee; Peter D. Drummond

This study aimed to investigate the psychophysiological correlates and the effectiveness of different dual-attention tasks used during eye movement desensitization and reprocessing (EMDR). Sixty-two non-clinical participants with negative autobiographical memories received a single session of EMDR without eye movements, or EMDR that included eye movements of either varied or fixed rate of speed. Subjective units of distress and vividness of the memory were recorded at pre-treatment, post-treatment, and 1 week follow-up. EMDR-with eye movements led to greater reduction in distress than EMDR-without eye movements. Heart rate decreased significantly when eye movements began; skin conductance decreased during eye movement sets; heart rate variability and respiration rate increased significantly as eye movements continued; and orienting responses were more frequent in the eye movement than no-eye movement condition at the start of exposure. Findings indicate that the eye movement component in EMDR is beneficial, and is coupled with distinct psychophysiological changes that may aid in processing negative memories.


Journal of Emdr Practice and Research | 2009

Adult PTSD and Its Treatment With EMDR: A Review of Controversies, Evidence, and Theoretical Knowledge

Christopher W. Lee

This article provides an overview of selective issues relating to adult posttraumatic stress disorder (PTSD) and its treatment with eye movement desensitization and reprocessing (EMDR). The article begins by providing a historical overview of PTSD, and debates about the etiology and definition of PTSD are discussed. The most predominant theories of PTSD are summarized by highlighting how they have evolved from traditional behavioral accounts based on the assumption that PTSD is an anxiety disorder to theories that now incorporate information-processing models. This article then examines the development of EMDR and the corresponding body of research that clearly demonstrates its efficacy for the treatment for adult PTSD. The underlying mechanisms of EMDR are discussed, with a focus on the importance of the eye movement component and how the therapeutic processes in EMDR differ from those of traditional exposure therapy. Finally, the adaptive information-processing (AIP) model that underlies EMDR is outlined, and evidence for the model is summarized. The article concludes by suggesting future research based on questions raised about PTSD and its treatment with EMDR when the AIP model is compared to other information-based theories of PTSD.


Psychology Research and Behavior Management | 2014

Potential of eye movement desensitization and reprocessing therapy in the treatment of post-traumatic stress disorder

Tracy McGuire; Christopher W. Lee; Peter D. Drummond

Post-traumatic stress disorder (PTSD) continues to attract both empirical and clinical interest due to its complex symptom profile and the underlying processes involved. Recently, research attention has been focused on the types of memory processes involved in PTSD and hypothesized neurobiological processes. Complicating this exploration, and the treatment of PTSD, are underlying comorbid disorders, such as depression, anxiety, and substance use disorders. Treatment of PTSD has undergone further reviews with the introduction of eye movement desensitization and reprocessing (EMDR). EMDR has been empirically demonstrated to be as efficacious as other specific PTSD treatments, such as trauma-focused cognitive behavioral therapy. There is emerging evidence that there are different processes underlying these two types of trauma treatment and some evidence that EMDR might have an efficiency advantage. Current research and understanding regarding the processes of EMDR and the future direction of EMDR is presented.


Journal of Nervous and Mental Disease | 2010

Clinical characteristics of depressed patients with a history of suicide attempts: results from the CRESCEND study in South Korea.

Min-Hyeon Park; Tae-Suk Kim; Hyeon Woo Yim; Seung Hee Jeong; Christopher W. Lee; Chang-Uk Lee; Jae-Min Kim; Sung-Won Jung; Michael S. Lee; Tae-Youn Jun

South Korea is a country with one of the highest suicide rates in the world, and the suicide rate is still on the rise. The purpose of this study was to determine the sociodemographic and clinical characteristics of suicide attempts and risk factors related to suicide attempts among depressed patients in South Korea. Among the 1183 participants, 21.4% had a history of a suicide attempt. When the severity of depression was controlled, the risk factors for patients who attempted suicide included younger age, experienced significant life events before 12 years of age, psychotic symptoms, and previous depressive episodes. The characteristics of attempted suicide in depressed patients in South Korea can be summarized as a high suicide attempt rate with no difference in the number of suicide attempts and lethality between males and females. This unique tendency is probably related to the sociodemographic and cultural characteristics of South Korea.


Geddes, K. <http://researchrepository.murdoch.edu.au/view/author/Geddes, Keren.html>, Dziurawiec, S. <http://researchrepository.murdoch.edu.au/view/author/Dziurawiec, Suzanne.html> and Lee, C.W. <http://researchrepository.murdoch.edu.au/view/author/Lee, Christopher.html> (2013) Dialectical Behaviour Therapy for the treatment of emotion dysregulation and trauma symptoms in self-injurious and suicidal adolescent females: A pilot programme within a community-based child and adolescent mental health service. Psychiatry Journal, 2013 . | 2013

Dialectical Behaviour Therapy for the Treatment of Emotion Dysregulation and Trauma Symptoms in Self-Injurious and Suicidal Adolescent Females: A Pilot Programme within a Community-Based Child and Adolescent Mental Health Service.

Keren Geddes; Suzanne Dziurawiec; Christopher W. Lee

Background. The literature suggests a link between childhood trauma and maladaptive emotion regulation strategies, including nonsuicidal self-injury (NSSI) and suicidality. We assessed the impact of a pilot dialectical behaviour therapy (DBT) programme on reducing trauma-related symptoms and improving emotional regulation, suicidality, and NSSI in adolescents. Methods. Six adolescents attending a community mental health service received 26 weeks of DBT, together with a parent. Independent assessors collected measures on each participant at baseline, posttreatment, and three-month followup. We implemented further improvements over past research with the use of adolescent-specific outcome measures as well as independent assessment of treatment integrity, noted as problematic in previous studies, using videotapes. Results. Firstly, adolescents reported a decrease in trauma-based symptoms, suicidality, and NSSI following participation in the DBT programme that was maintained at the three-month followup. Secondly, adolescents also reported improved emotion regulation immediately following treatment, and this was maintained, albeit more moderately, three months later. Given the burgeoning demand on mental health services, it is notable that five of the six adolescents were discharged from the service following the DBT intervention. Conclusions. The results of this pilot programme suggest that DBT has the potential to improve the symptoms of this at-risk population.


Journal of Personality Disorders | 2016

How Do DSM-5 Personality Traits Align With Schema Therapy Constructs?

Bo Bach; Christopher W. Lee; Erik Lykke Mortensen; Erik Simonsen

DSM-5 offers an alternative model of personality pathology that includes 25 traits. Although personality disorders are mostly treated with psychotherapy, the correspondence between DSM-5 traits and concepts in evidence-based psychotherapy has not yet been evaluated adequately. Suitably, schema therapy was developed for treating personality disorders, and it has achieved promising evidence. The authors examined associations between DSM-5 traits and schema therapy constructs in a mixed sample of 662 adults, including 312 clinical participants. Associations were investigated in terms of factor loadings and regression coefficients in relation to five domains, followed by specific correlations among all constructs. The results indicated conceptually coherent associations, and 15 of 25 traits were strongly related to relevant schema therapy constructs. Conclusively, DSM-5 traits may be considered expressions of schema therapy constructs, which psychotherapists might take advantage of in terms of case formulation and targets of treatment. In turn, schema therapy constructs add theoretical understanding to DSM-5 traits.

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Arnoud Arntz

University of Amsterdam

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Jeff Richards

Federation University Australia

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