Modelling longitudinal changes in older adults' memory for spoken discourse: Findings from the ACTIVE cohort
Year: 2013
Type: article
Abstract: Episodic memory shows substantial declines with advancing age, but research on longitudinal trajectories of spoken discourse memory (SDM) in older adulthood is limited. Using parallel process latent growth curve models, we examined 10 years of longitudinal data from the no-contact control group (N = 698) of the Advanced Cognitive Training for Independent and Vital Elderly (ACTIVE) randomised controlled trial in order to test (1) the degree to which SDM declines with advancing age, (2) the predictors of these age-related declines and (3) the within-person relationship between longitudinal changes in SDM and longitudinal changes in fluid reasoning and verbal ability over 10 years, independent of age. Individuals who were younger, were White, had more years of formal education, were male and had better global cognitive function and episodic memory performance at baseline demonstrated greater levels of SDM on average. However, only age at baseline uniquely predicted longitudinal changes in SDM, such that declines accelerated with greater age. Independent of age, within-person decline in reasoning ability over the 10-year study period was substantially correlated with decline in SDM (r = .87). An analogous association with SDM did not hold for verbal ability. The findings suggest that longitudinal declines in fluid cognition are associated with reduced spoken language comprehension. Unlike findings from memory for written prose, preserved verbal ability may not protect against developmental declines in memory for speech.
Source: Memory
Language: English
Subfield: Psychiatry and Mental health
Field: Medicine
Domain: Health Sciences
Open Access status: green
Awards: Age Differences in Resource Allocation During Reading, G2095297624, ACTIVE Phase III: HRC Field Site, G2927293553, ACTIVE Phase III: JHU Field Site, G3089598385, G3482242088, ACTIVE Phase III: IU Field Site, G4001700250, G5495161595, G5582211115, Harvard Translational Research in Aging Training Program, Language Processing: A Training Program, ACTIVE Phase III: UAB Field Site, ACTIVE Phase III: PSU Field Site, ACTIVE Phase III: UF/WSU Field Site, G6834845086, Research Training in Non-Pharmacological Interventions for Cognition in Aging, MCI, and Alzheimer's Disease, ACTIVE Coordinating Center, University of Florida Older Americans Independence Center (OAIC)
OpenAlex ID: W1975508512