Perceptual organization of auditory streaming-task relies on neural entrainment of the stimulus-presentation rate: MEG evidence.

ABSTRACT:

Background

Humans are able to extract regularities from complex auditory scenes in order to form perceptually meaningful elements. It has been shown previously that this process depends critically on both the temporal integration of the sensory input over time and the degree of frequency separation between concurrent sound sources. Our goal was to examine the relationship between these two aspects by means of magnetoencephalography (MEG). To achieve this aim, we combined time-frequency analysis on a sensor space level with source analysis. Our paradigm consisted of asymmetric ABA-tone triplets wherein the B-tones were presented temporally closer to the first A-tones, providing different tempi within the same sequence. Participants attended to the slowest B-rhythm whilst the frequen

SUBMITTER: Chakalov I 

PROVIDER: S-EPMC3853018 | biostudies-literature | 2013 Oct

REPOSITORIES: biostudies-literature