Distinct neural ensemble response statistics are associated with recognition and discrimination of natural sound textures.

ABSTRACT: The perception of sound textures, a class of natural sounds defined by statistical sound structure such as fire, wind, and rain, has been proposed to arise through the integration of time-averaged summary statistics. Where and how the auditory system might encode these summary statistics to create internal representations of these stationary sounds, however, is unknown. Here, using natural textures and synthetic variants with reduced statistics, we show that summary statistics modulate the correlations between frequency organized neuron ensembles in the awake rabbit inferior colliculus (IC). These neural ensemble correlation statistics capture high-order sound structure and allow for accurate neural decoding in a single trial recognition task with evidence accumulation times approaching 1

SUBMITTER: Zhai X 

PROVIDER: S-EPMC7733800 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature