A slow wave investigation of working memory biases in mood disorders

Patricia J. Deldin, Christen M. Deveney, Andrea S. Kim, Brooks R. Casas, Jennifer L. Best

Research output: Contribution to journalArticle

54 Scopus citations

Abstract

Mood-congruent working memory biases were examined in a delayed matching to sample paradigm using the slow wave (SW) event-related brain potential (ERP) component. Mood-congruent working memory biases, indexed by SW amplitudes, were demonstrated among individuals experiencing a major depressive episode (MDE) and nondepressed controls but not individuals with dysthymia. However, analyses of symptom severity demonstrated that those with dysthymia exhibited significantly less negative SW amplitudes with increasing depressive mood severity, whereas individuals with major depression demonstrated more negative SW amplitudes with increasing depressive mood severity. These results are discussed in the context of diagnostic specificity for cognitive biases associated with working memory of mood-disordered individuals.

Original languageEnglish (US)
Pages (from-to)267-281
Number of pages15
JournalJournal of Abnormal Psychology
Volume110
Issue number2
DOIs
StatePublished - Jan 1 2001

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ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Biological Psychiatry

Cite this

Deldin, P. J., Deveney, C. M., Kim, A. S., Casas, B. R., & Best, J. L. (2001). A slow wave investigation of working memory biases in mood disorders. Journal of Abnormal Psychology, 110(2), 267-281. https://doi.org/10.1037/0021-843X.110.2.267