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Updated: Aug 17, 2026

Infant Auditory Processing and Event-related Brain Oscillations
Published on: July 1, 2015
Aging decreases auditory event-related potentials to unexpected stimuli in humans
Abstract:
A P300 event-related potential (P3a) was recorded to unexpected, deviant auditory stimuli requiring no behavioral response. This brain potential underwent systematic latency prolongation and amplitude decrease with advancing age. The age-related changes paralleled those of the P300 (P3b) recorded in target detection tasks. These results provide physiological evidence of a decremented CNS response to unexpected stimuli with aging.
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