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Cognitive Change In Cognitive-Behavioural Therapy, Leanne Quigley, David J A Dozois, R Michael Bagby, Daniela S S Lobo, Lakshmi Ravindran, Lena C Quilty

Psychology Publications

BACKGROUND: Although cognitive-behavioural therapy (CBT) is a well-established treatment for adult depression, its efficacy and efficiency may be enhanced by better understanding its mechanism(s) of action. According to the theoretical model of CBT, symptom improvement occurs via reductions in maladaptive cognition. However, previous research has not established clear evidence for this cognitive mediation model.

METHODS: The present study investigated the cognitive mediation model of CBT in the context of a randomized controlled trial of CBT v. antidepressant medication (ADM) for adult depression. Participants with major depressive disorder were randomized to receive 16 weeks of CBT (n = 54) or ADM …

Changes In Self-Schema Structure In Cognitive Therapy For Major Depressive Disorder: A Randomized Clinical Trial., David J A Dozois, Peter J Bieling, Irene Patelis-Siotis, Lori Hoar, Susan Chudzik, Katie Mccabe, Henny A Westra

Psychology Publications

Negative cognitive structure (particularly for interpersonal content) has been shown in some research to persist past a current episode of depression and potentially to be a stable marker of vulnerability for depression (D. J. A. Dozois, 2007; D. J. A. Dozois & K. S. Dobson, 2001a). Given that cognitive therapy (CT) is highly effective for treating the acute phase of a depressive episode and that this treatment also reduces the risk of relapse and recurrence, it is possible that CT may alter these stable cognitive structures. In the current study, patients were randomly assigned to CT+ pharmacotherapy (n = 21) …