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The Journals of Gerontology Series B: Psychological Sciences and Social Sciences Advance Access originally published online on September 17, 2009
The Journals of Gerontology Series B: Psychological Sciences and Social Sciences 2009 64B(6):742-746; doi:10.1093/geronb/gbp076
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© The Author 2009. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oxfordjournals.org.

Associations Between Psychological Distress, Learning, and Memory in Spouse Caregivers of Older Adults

Corey S. Mackenzie1, Ursula J. Wiprzycka1, Lynn Hasher2,3 and David Goldstein2

1 Department of Counselling Psychology at OISE
2 Department of Psychology, University of Toronto, Ontario, Canada
3 Rotman Research Institute of Baycrest Centre, Toronto, Ontario, Canada

Address correspondence to Corey S. Mackenzie, PhD, Department of Psychology, University of Manitoba, 190 Dysart Road, Winnipeg, Manitoba, Canada R3T 2N2. Email: corey_mackenzie{at}umanitoba.ca


  Abstract

Family caregivers of older adults experience high levels of chronic stress and psychological distress, which are known to impair cognition. Very little research, however, has assessed the impact of caregiving on key cognitive outcomes such as learning and memory. This study compared 16 spouse caregivers with 16 matched controls using standardized neuropsychological measures of learning, episodic memory, and working memory. Analyses compared groups on these cognitive outcomes and examined whether psychological distress mediated group differences in cognition. Results indicated that caregivers were significantly more distressed than non-caregivers and exhibited deficits in learning, recall of episodic information after short and long delays, and working memory. Furthermore, the majority of group differences in cognitive outcomes were mediated by psychological distress. This study adds to a small body of literature demonstrating impaired cognitive functioning among family caregivers. It also suggests that distress is one of a number of possible underlying mechanisms leading to disruptions in learning and memory in this population.

Key Words: Caregiver stress • Cognition • Distress • Mediation • Memory

Received January 2, 2009; Accepted August 24, 2009

Decision Editor: Elizabeth A. L. Stine-Morrow, PhD


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