Working memory predicts subsequent episodic memory decline during healthy cognitive aging: evidence from a cross-lagged panel design

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.     

INTERNAL AND EXTERNAL MEDIATORS OF WOMEN'S RAPE EXPERIENCES

Internal and external factors are examined as mediational processes and/or coping strategies that link four aspects of women's rape experiences to the initial and lasting effects on their post-rape adjustment, attitude toward sex and intimacy, and lifestyle changes to prevent future assaults. Data are from a multiethnic community sample of 55 women who had been victims of rape or attempted rape. A measured or observed variable simultaneous path analysis model was used to test the relationships among the traumatic circumstances, mediators, and outcome variables. More self-blame, high involvement of police or other agencies, a greater number of repeated rapes per incident, and severity of abuse predicted women's negative initial and lasting attitudes toward sex and intimacy. The implications of these findings are discussed as they relate to barriers in disclosing attempted and completed incidents of rape.