Work

Interaural spectral asymmetry and sensitivity to interaural time differences

Year: 2011

Type: article

Abstract: Listeners' ability to discriminate interaural time difference (ITD) changes in low-frequency noise was determined as a function of differences in the noise spectra delivered to each ear. An ITD was applied to Gaussian noise, which was bandpass filtered using identical high-pass, but different low-pass cutoff frequencies across ears. Thus, one frequency region was dichotic, and a higher-frequency region monotic. ITD thresholds increased as bandwidth to one ear (i.e., monotic bandwidth) increased, despite the fact that the region of interaural spectral overlap remained constant. Results suggest that listeners can process ITD differences when the spectra at two ears are moderately different.

Source: The Journal of the Acoustical Society of America

DOI: 10.1121/1.3647263

Authors: Christopher A. Brown, William A. Yost

Institution: Arizona State University

Language: English

Topic: Neuroscience and Music Perception

Subfield: Cognitive Neuroscience

Field: Neuroscience

Domain: Life Sciences

Open Access status: green

Funder: National Institute on Deafness and Other Communication Disorders

Awards: Understanding the Benefits of Electric-acoustic Stimulation, The Role of Fine-Structure Timing in Auditory Perception