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Visual function and cognitive speed of processing mediate age-related decline in memory span and fluid intelligence

Clay, Olivio; Edwards, Jeri; Ross, Lesley; Okonkwo, Ozioma; Wadley, Virginia; Roth, David L; Ball, Karlene


Objectives: To evaluate the relationship between sensory and cognitive decline, particularly with respect to speed of processing, memory span, and fluid intelligence. In addition, the common cause, sensory degradation and speed of processing hypotheses were compared. Method: Structural equation modeling was used to investigate the complex relationships among age-related decrements in these areas. Results: Cross-sectional data analyses included 842 older adult participants (M = 73 years). After...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
Source: Journal of Aging and Health
DOI: 10.1177/0898264309333326


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