TY - JOUR
T1 - Working memory predicts subsequent episodic memory decline during healthy cognitive aging
T2 - evidence from a cross-lagged panel design
AU - Memel, Molly
AU - Woolverton, Cindy B.
AU - Bourassa, Kyle
AU - Glisky, Elizabeth L.
N1 - Publisher Copyright:
© 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group.
PY - 2019/9/3
Y1 - 2019/9/3
N2 - Aging adults experience declines in working memory and episodic memory, however, it is unclear how these declines operate over time. Decreased working memory may be associated with early changes in episodic memory, by reducing older adults’ ability to meaningfully integrate new information into pre-existing schemas and recall information without the assistance of cues. Given the increased prevalence of Alzheimer’s disease, and concerns based on subjective memory changes, it is important to understand how these processes interact over time. To assess the relationship between working memory and episodic memory during healthy cognitive aging, we performed neuropsychological assessments at multiple time points in a sample of 310 community-dwelling older adults. Using a cross-lagged panel design, we demonstrated that the lagged associations between working memory and later episodic free recall were 50% larger than the lagged associations between episodic recall and later working memory, suggesting working memory may be a useful metric of future episodic memory decline.
AB - Aging adults experience declines in working memory and episodic memory, however, it is unclear how these declines operate over time. Decreased working memory may be associated with early changes in episodic memory, by reducing older adults’ ability to meaningfully integrate new information into pre-existing schemas and recall information without the assistance of cues. Given the increased prevalence of Alzheimer’s disease, and concerns based on subjective memory changes, it is important to understand how these processes interact over time. To assess the relationship between working memory and episodic memory during healthy cognitive aging, we performed neuropsychological assessments at multiple time points in a sample of 310 community-dwelling older adults. Using a cross-lagged panel design, we demonstrated that the lagged associations between working memory and later episodic free recall were 50% larger than the lagged associations between episodic recall and later working memory, suggesting working memory may be a useful metric of future episodic memory decline.
KW - Cognition
KW - aging
KW - longitudinal
KW - memory
UR - http://www.scopus.com/inward/record.url?scp=85053669939&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85053669939&partnerID=8YFLogxK
U2 - 10.1080/13825585.2018.1521507
DO - 10.1080/13825585.2018.1521507
M3 - Article
C2 - 30223708
AN - SCOPUS:85053669939
SN - 1382-5585
VL - 26
SP - 711
EP - 730
JO - Aging, Neuropsychology, and Cognition
JF - Aging, Neuropsychology, and Cognition
IS - 5
ER -