Abstract: The ability to effectively resolve interference was investigated in young and elderly participants using a test of inhibition and a dual task measure. The tasks stressed the ability to suppress prepotent responding, and balance primary and secondary task demands, respectively. Successful performance on both measures hinged on the ability to minimize the distraction generated between competing aspects of each task. Increasing demands resulted in performance decrements despite titration for individual differences in span size and generalized slowing. These were more pronounced on the hardest condition of each task, especially in older participants. Furthermore, the nature of the decrements suggested the use of different strategies between groups. It is argued that a fundamental source of the age-associated variability in cognition is due to compromised ability to effectively resolve interference, and cannot be sufficiently explained by memory span differences or generalized slowing. (PsycINFO Database Record (c) 2007 APA, all rights reserved) (from the journal abstract)
Keywords: interference resolution; elderly; age differences; inhibition; dual task processing; distraction; individual differences; cognition; memory span; Aging; Dual Task Performance; Interference (Learning); Memory; Proactive Inhibition
Notes: 1382-55851744-4128Accession Number: 2006-10488-005. First Author & Affiliation: Rekkas, P. Vivien; Yale University School of Medicine, New Haven, CT, US. Other Journal Title: Aging, Neuropsychology, and Cognition. Release Date: 20060828. Publication Type: Journal (0100) Peer Reviewed Journal (0110). Media Covered: Print. Media Available: Electronic; Print. Document Type: Journal Article. Language: English. Major Descriptor: Age Differences; Aging; Dual Task Performance; Interference (Learning); Memory. Minor Descriptor: Cognition; Distraction; Individual Differences; Proactive Inhibition. Classification: Cognitive Processes (2340) . Population: Human (10) Male (30) Female (40) . Location: Canada. Age Group: Adulthood (18 yrs & older) (300) Young Adulthood (18-29 yrs) (320) Thirties (30-39 yrs) (340) Aged (65 yrs & older) (380) Very Old (85 yrs & older) (390) . Tests & Measures: Test of Prepotent Inhibition; Mini Mental State Examination; Geriatric Depression Scale; National Adult Reading Test; . Methodology: Empirical Study; Quantitative Study. References Available: Y.
