Age-related deficits in auditory temporal processing: unique contributions of neural dyssynchrony and slowed neuronal processing.

ABSTRACT: This study was guided by the hypothesis that the aging central nervous system progressively loses its ability to process rapid acoustic changes that are important for speech recognition. Specifically, we hypothesized that age-related deficits in neural synchrony and neuronal oscillatory activity occur independently in older adults and disrupt auditory temporal processing. Neural synchrony is largely dependent on phase locking within the central auditory pathway, beginning at the auditory nerve. In contrast, the resonance characteristics of oscillatory activity are dependent on the integrity and structure of long range cortical connections. We tested our hypotheses by assessing age-related differences in electrophysiologic correlates of neural synchrony and peak oscillatory frequency in you

SUBMITTER: Harris KC 

PROVIDER: S-EPMC5385299 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature