Temporal jitter mimics the effects of aging on word identification and word recall in noise

  • Sasha Brown Univ of British Columbia, Vancouver, Canada
  • M.Kathy Pichora-Fuller Univ of British Columbia, Vancouver, Canada
Keywords: Acoustic noise, Acoustic signal processing, Audiometers, Audition, Computer simulation, Audiometric thresholds, Auditory systems, Jitter mimics, Word identification, Word recall

Abstract

The simulation of the neural jitter disrupting the ability to phase-lock to lower frequencies in the aging auditory system was done. The applied jitter was determined to affect young adults performance so that it resembles that of older adults in two different tasks. Such findings helped in explaining age related decline in the ability to perceive speech, particularly in the presence of background noise, when no hearing loss is evidenced by standard clinical pure-tone audiometry. Degraded perceptual processing affects processes, such as memory, which are cognitive. Cognitive processes are employed to rescue signals degraded at the perceptual level.
Published
2000-09-01
How to Cite
1.
Brown S, Pichora-Fuller M. Temporal jitter mimics the effects of aging on word identification and word recall in noise. Canadian Acoustics [Internet]. 2000Sep.1 [cited 2019Aug.19];28(3):126-8. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1322
Section
Proceedings of the Acoustics Week in Canada