Human discrimination and modeling of high-frequency complex tones shed light on the neural codes for pitch.

ABSTRACT: Accurate pitch perception of harmonic complex tones is widely believed to rely on temporal fine structure information conveyed by the precise phase-locked responses of auditory-nerve fibers. However, accurate pitch perception remains possible even when spectrally resolved harmonics are presented at frequencies beyond the putative limits of neural phase locking, and it is unclear whether residual temporal information, or a coarser rate-place code, underlies this ability. We addressed this question by measuring human pitch discrimination at low and high frequencies for harmonic complex tones, presented either in isolation or in the presence of concurrent complex-tone maskers. We found that concurrent complex-tone maskers impaired performance at both low and high frequencies, although the imp

SUBMITTER: Guest DR 

PROVIDER: S-EPMC8923464 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature