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Sad benefit in face working memory: an emotional bias of melancholic depression

Linden, Stefanie, Jackson, Margaret C., Subramanian, Leena, Healy, David Thomas and Linden, David Edmund Johannes 2011. Sad benefit in face working memory: an emotional bias of melancholic depression. Journal of Affective Disorders 135 (1-3) , pp. 251-257. 10.1016/j.jad.2011.08.002

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Abstract

Emotion biases feature prominently in cognitive theories of depression and are a focus of psychological interventions. However, there is presently no stable neurocognitive marker of altered emotion–cognition interactions in depression. One reason may be the heterogeneity of major depressive disorder. Our aim in the present study was to find an emotional bias that differentiates patients with melancholic depression from controls, and patients with melancholic from those with non-melancholic depression. We used a working memory paradigm for emotional faces, where two faces with angry, happy, neutral, sad or fearful expression had to be retained over one second. Twenty patients with melancholic depression, 20 age-, education- and gender-matched control participants and 20 patients with non-melancholic depression participated in the study. We analysed performance on the working memory task using signal detection measures. We found an interaction between group and emotion on working memory performance that was driven by the higher performance for sad faces compared to other categories in the melancholic group. We computed a measure of “sad benefit”, which distinguished melancholic and non-melancholic patients with good sensitivity and specificity. However, replication studies and formal discriminant analysis will be needed in order to assess whether emotion bias in working memory may become a useful diagnostic tool to distinguish these two syndromes.

Item Type: Article
Date Type: Publication
Status: Published
Schools: MRC Centre for Neuropsychiatric Genetics and Genomics (CNGG)
Medicine
Psychology
Neuroscience and Mental Health Research Institute (NMHRI)
Subjects: R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Uncontrolled Keywords: depression, melancholia, working memory, facial expression, emotion
Publisher: Elsevier
ISSN: 0165-0327
Last Modified: 04 Jun 2017 03:45
URI: http://orca.cf.ac.uk/id/eprint/25970

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