Cognitive mechanisms underlying implicit negative self concept in dysphoria.

Whereas explicit measures of the self-concept typically demonstrate a negative bias in depressed individuals, implicit measures such as the Implicit Association Test (IAT), revealed an opposite, positive bias. To address this inconsistent pattern, the authors examined, using a novel paradigm, mental set maintenance (i.e., the difficulty of maintaining active a required mental set) and set operation (the efficiency of executing the mental set while it is maintained). Dysphoric (N = 33) and nondysphoric (N = 30) participants alternated between an IAT focusing on self reference and a matched neutral task. Nondysphorics had greater difficulty in maintaining a negative self reference task compared to a neutral task. Conversely, dysphorics did not exhibit such difficulty, and they maintained a negative self-reference task more easily than nondysphorics. No group differences were evinced in smoothness of set operation. These results suggest that the shield protecting nondysphorics from maintaining negative mental sets is absent in dysphorics. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Divergent cognitive costs for online forms of reappraisal and distraction.

The present study was set out to evaluate the cognitive costs of two major emotion regulation strategies under conditions of increased challenge. Previous studies have established that cognitive reappraisal (construing an emotional event in nonemotional terms) has no cognitive costs. However, in all of these studies, reappraisal was initiated at the emotional situation onset, before emotional response tendencies sufficiently evolved. In the present study, the challenge of regulation strategies was increased by initiating strategies online at a late time point in an emotional situation. Applying this procedure revealed for the first time a cognitive cost for reappraisal and also provided double dissociation between reappraisal and another major cognitive emotion regulation strategy--distraction (diverting attention from an emotional situation via producing neutral thoughts). Specifically, late reappraisal, relative to distraction, resulted in an expenditure of self control resources. Late distraction but not reappraisal impaired memory encoding of the emotional situation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)