Impact of sensory acuity on auditory working memory span in young and older adults.

Psychol Aging

Department of Psychology, George Mason University, Fairfax, VA 22030-4444, USA.

Published: March 2011

AI Article Synopsis

  • The study explored how sensory acuity, processing speed, and working memory affect auditory working memory performance (L-span) in young adults (18-30) and older adults (60-82).
  • Lowering the presentation level of the L-span task negatively impacted older adults more than younger ones, indicating age-related differences in cognitive performance.
  • The findings suggest that decreased sensory acuity significantly contributes to cognitive decline as people age.

Article Abstract

The impact of sensory acuity, processing speed, and working memory capacity on auditory working memory span (L-span) performance at 5 presentation levels was examined in 80 young adults (18-30 years of age) and 26 older adults (60-82 years of age). Lowering the presentation level of the L-span task had a greater detrimental effect on the older adults than on the younger ones. Furthermore, the relationship between sensory acuity and L-span performance varied as a function of age and presentation level. These results suggest that declining acuity plays an important explanatory role in age-related declines in cognitive abilities.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3062694PMC
http://dx.doi.org/10.1037/a0020360DOI Listing

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