Understanding pitch perception as a hierarchical process with top-down modulation.

ABSTRACT: Pitch is one of the most important features of natural sounds, underlying the perception of melody in music and prosody in speech. However, the temporal dynamics of pitch processing are still poorly understood. Previous studies suggest that the auditory system uses a wide range of time scales to integrate pitch-related information and that the effective integration time is both task- and stimulus-dependent. None of the existing models of pitch processing can account for such task- and stimulus-dependent variations in processing time scales. This study presents an idealized neurocomputational model, which provides a unified account of the multiple time scales observed in pitch perception. The model is evaluated using a range of perceptual studies, which have not previously been accounted fo

SUBMITTER: Balaguer-Ballester E 

PROVIDER: S-EPMC2639722 | biostudies-literature | 2009 Mar

REPOSITORIES: biostudies-literature