Christopher W. Lee

Dr. Christopher W. Lee

University of Western Australia, Faculty of Health and Medical Sciences, NEDLANDS, WA, Australia
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Research Focus & Metrics

Academic Career Length

19Years (2008-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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3 February 2016 in Depression and Anxiety
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Journal Article
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AJAd de Jongh
Ad de Jongh
PRPatricia A. Resick
Patricia A. Resick
LZLori A. Zoellner
Lori A. Zoellner
AMAgnes van Minnen
Agnes van Minnen
CLChristopher W. Lee
Christopher W. Lee
IBIva A.E. Bicanic
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.

7 September 2020 in The British Journal of Psychiatry
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KHKatrina Boterhoven de Haan
Katrina Boterhoven de Haan
CLChristopher W. Lee
Christopher W. Lee
EFEva Fassbinder
Eva Fassbinder
SESaskia M. van Es
Saskia M. van Es
SMSimone Menninga
Simone Menninga
AAArnoud Arntz
Arnoud Arntz
Background: Investigation of treatments that effectively treat adults with post-traumatic stress disorder from childhood experiences (Ch-PTSD) and are well tolerated by patients is needed to improve outcomes for this population.Aims: The purpose of this study was to compare the effectiveness of two trauma-focused treatments, imagery rescripting (ImRs) and eye movement desensitisation and reprocessing (EMDR), for treating Ch-PTSD.Method: We conducted an international, multicentre, randomised clinical trial, recruiting adults with Ch-PTSD from childhood trauma before 16 years of age. Participants were randomised to treatment condition and assessed by blind raters at multiple time points. Participants received up to 12 90-min sessions of either ImRs or EMDR, biweekly.Results: A total of 155 participants were included in the final intent-to-treat analysis. Drop-out rates were low, at 7.7%. A generalised linear mixed model of repeated measures showed that observer-rated post-traumatic stress disorder (PTSD) symptoms significantly decreased for both ImRs (d = 1.72) and EMDR (d = 1.73) at the 8-week post-treatment assessment. Similar results were seen with secondary outcome measures and self-reported PTSD symptoms. There were no significant differences between the two treatments on any standardised measure at post-treatment and follow-up.Conclusions: ImRs and EMDR treatments were found to be effective in treating PTSD symptoms arising from childhood trauma, and in reducing other symptoms such as depression, dissociation and trauma-related cognitions. The low drop-out rates suggest that the treatments were well tolerated by participants. The results from this study provide evidence for the use of trauma-focused treatments for Ch-PTSD.

1 January 2018 in European Journal of Psychotraumatology
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Journal Article
Open access
CWC. Van Woudenberg
C. Van Woudenberg
EVEline Voorendonk
Eline Voorendonk
HBH. Bongaerts
H. Bongaerts
HZHarmen A. Zoet
Harmen A. Zoet
MVM. Verhagen
M. Verhagen
AJAd de Jongh
Ad de Jongh
Background: There is room for improvement regarding the treatment of severe post-traumatic stress disorder (PTSD). Intensifying treatment to increase patient retention is a promising development. Objective: The aim of this study was to determine the effectiveness of an intensive trauma-focused treatment programme over 8 days for individuals suffering from severe PTSD. Method: Treatment was provided for 347 PTSD patients (70% women; mean age = 38.32 years, SD = 11.69) and consisted of daily sessions of prolonged exposure and eye movement desensitization and reprocessing (EMDR) therapy (16 sessions in total), physical activity, and psycho-education. All participants had experienced multiple traumas, including sexual abuse (74.4%), and suffered from multiple comorbidities (e.g. 87.5% had a mood disorder). Suicidal ideation was frequent (73.9%). PTSD symptom severity was assessed by both clinician-rated [Clinician Administered PTSD Scale (CAPS)] and self-report [PTSD Symptom Scale Self Report (PSS-SR) and Impact of Event Scale (IES)] inventories. For a subsample (n = 109), follow-up data at 6 months were available. Results: A significant decline in symptom severity was found (e.g. CAPS intention-to-treat sample Cohen’s d = 1.64). At post-treatment, 82.9% showed a clinically meaningful response and 54.9% a loss of diagnosis. Dropout was very low (2.3%). Conclusions: Intensive trauma-focused treatment programmes including prolonged exposure, EMDR therapy, and physical activity can be effective for patients suffering from severe PTSD and are associated with low dropout rates.

1 January 2011 in Journal of Anxiety Disorders
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SSSarah J. Schubert
Sarah J. Schubert
CLChristopher W. Lee
Christopher W. Lee
PDPeter D. Drummond
Peter D. Drummond

9 February 2021 in Cognitive Therapy and Research
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Journal Article
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AAArnoud Arntz
Arnoud Arntz
MRMarleen Rijkeboer
Marleen Rijkeboer
ECEdward Chan
Edward Chan
EFEva Fassbinder
Eva Fassbinder
AKAlp Karaosmanoglu
Alp Karaosmanoglu
MPMarta Panzeri
Marta Panzeri
Background: A central construct in Schema Therapy (ST) is that of a schema mode, describing the current emotional-cognitive-behavioral state. Initially, 10 modes were described. Over time, with the world-wide increasing and broader application of ST to various disorders, additional schema modes were identified, mainly based on clinical impressions. Thus, the need for a new, theoretically based, cross-cultural taxonomy of modes emerged. Methods: An international workgroup started from scratch to identify an extensive taxonomy of modes, based on (a) extending the theory underlying ST with new insights on needs, and (b) recent research on ST theory supporting that modes represent combinations of activated schemas and coping. Results: We propose to add two emotional needs to the original five core needs that theoretically underpin the development of early maladaptive schemas (EMSs), i.e., the need for Self-Coherence, and the need for Fairness, leading to three new EMSs, i.e. Lack of a Coherent Identity, Lack of a Meaningful World, and Unfairness. When rethinking the purpose behind the different ways of coping with EMS-activation, we came up with new labels for two of those: Resignation instead of Surrender, and Inversion instead of Overcompensation. By systematically combining EMSs and ways of coping we derived a set of schema modes that can be empirically tested. Conclusions: With this project, we hope to contribute to the further development of ST and its application across the world.

1 January 2019 in Journal of EMDR Practice and Research
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Journal Article
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AJAd de Jongh
Ad de Jongh
BABenedikt Amann
Benedikt Amann
AHArne Hofmann
Arne Hofmann
DFDerek Farrell
Derek Farrell
CLChristopher W. Lee
Christopher W. Lee
Given that 2019 marks the 30th anniversary of eye movement desensitization and reprocessing (EMDR) therapy, the purpose of this article is to summarize the current empirical evidence in support of EMDR therapy as an effective treatment intervention for posttraumatic stress disorder (PTSD). Currently, there are more than 30 randomized controlled trials (RCT) demonstrating the effectiveness in patients with this debilitating mental health condition, thus providing a robust evidence base for EMDR therapy as a first-choice treatment for PTSD. Results from several meta-analyses further suggest that EMDR therapy is equally effective as its most important trauma-focused comparator, that is, trauma-focused cognitive behavioral therapy, albeit there are indications from some studies that EMDR therapy might be more efficient and cost-effective. There is emerging evidence showing that EMDR treatment of patients with psychiatric disorders, such as psychosis, in which PTSD is comorbid, is also safe, effective, and efficacious. In addition to future well-crafted RCTs in areas such as combat-related PTSD and psychiatric disorders with comorbid PTSD, RCTs with PTSD as the primary diagnosis remain pivotal in further demonstrating EMDR therapy as a robust treatment intervention.