An investigation of extreme responding as a mediator of cognitive therapy for depression

Although the efficacy of Cognitive Therapy (CT) for depression is well documented, questions remain about the conditions under which CT is maximally effective, and the mechanisms by which CT is efficacious. This study examined the role of extreme responding (ER) as a mediator and predictor of relaps...

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Bibliographic Details
Published inBehaviour research and therapy Vol. 48; no. 4; pp. 266 - 274
Main Authors Ching, Laurie E., Dobson, Keith S.
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier Ltd 01.04.2010
Elsevier
Elsevier Science Ltd
Subjects
Adult
Adult and adolescent clinical studies
Analysis of Variance
Behavior modification
Behavior therapy. Cognitive therapy
Behavioral activation
Biological and medical sciences
Clinical outcomes
Cognitive therapy
Cognitive Therapy - methods
Depression
Depressive Disorder - diagnosis
Depressive Disorder - therapy
Extreme responding
Extremes
Female
Follow-Up Studies
Humans
Male
Mediation
Medical sciences
Mental depression
Mood disorders
Prognosis
Proportional Hazards Models
Psychological Tests
Psychology. Psychoanalysis. Psychiatry
Psychopathology. Psychiatry
Relapse
Secondary Prevention
Treatment Outcome
Treatments
Depression
Cognitive therapy
Extreme responding
Mediation
Behavioral activation
Mood disorder
Human
Treatment
Activation
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Summary:Although the efficacy of Cognitive Therapy (CT) for depression is well documented, questions remain about the conditions under which CT is maximally effective, and the mechanisms by which CT is efficacious. This study examined the role of extreme responding (ER) as a mediator and predictor of relapse, as well as a predictor of acute treatment outcome. To test mediation, ER of participants in CT was compared to ER of participants receiving Behavioral Activation (BA). Results indicated that ER was not a mediator of relapse in either condition. Both CT and BA showed reductions in depression severity, however neither group showed significant changes in ER over the course of treatment. Finally, ER did not predict or moderate acute treatment outcome. The implications of these results, strengths and limitations of the current study, and future research directions are discussed.
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ISSN:0005-7967
1873-622X
DOI:10.1016/j.brat.2009.12.007