Cognitive differences among depressed and non-depressed MCI participants: A project FRONTIER study

Leigh A. Johnson, Cortney Mauer, Danielle Jahn, Michael Song, Lauren Wyshywaniuk, James R. Hall, Valerie Hobson Balldin, Sid E. O'Bryant

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

Objective Depression is the most commonly reported psychiatric symptom in patients with mild cognitive impairment (MCI). However, more research is needed examining the impact of depression on cognitive functioning in MCI patients. The purpose of this study was to examine differences in cognitive functioning in a sample of community- based, depressed, and non-depressed MCI patients. Methods One hundred and five participants with MCI were included in this study. Participants were recruited from Project FRONTIER, a study of rural health. Depression was assessed via the Geriatric Depression Scale (GDS-30), and cognition was measured using the Repeatable Battery for the Assessment of Neuropsychological Status. Results The results indicated that depressed MCI participants performed significantly worse than their non-depressed counterparts on several cognitive measures. MCI participants with depression scored significantly lower on immediate memory (t = 3.4, p < 0.01) and delayed memory (t = 2.8, p < 0.01) indices than their non-depressed counterparts. Conclusions The results of this study indicated that MCI participants with depression experienced greater deficits in cognitive functioning than their non-depressed counterparts. Depressed MCI participants exhibited greater deficits in both immediate and delayed memory. Thus, identifying and treating depression in individuals with MCI may improve memory and cognitive functioning.

Original languageEnglish
Pages (from-to)377-382
Number of pages6
JournalInternational Journal of Geriatric Psychiatry
Volume28
Issue number4
DOIs
StatePublished - 1 Apr 2013

Keywords

  • cognition
  • depression
  • learning and memory
  • mild cognitive impairment

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