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Evolutionary conservation and neuronal mechanisms of auditory perceptual restoration

Lookup NU author(s): Professor Christopher Petkov

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Abstract

Auditory perceptual 'restoration' occurs when the auditory system restores an occluded or masked sound of interest. Behavioral work on auditory restoration in humans began over 50 years ago using it to model a noisy environmental scene with competing sounds. It has become clear that not only humans experience auditory restoration: restoration has been broadly conserved in many species. Behavioral studies in humans and animals provide a necessary foundation to link the insights being obtained from human EEG and fMRI to those from animal neurophysiology. The aggregate of data resulting from multiple approaches across species has begun to clarify the neuronal bases of auditory restoration. Different types of neural responses supporting restoration have been found, supportive of multiple mechanisms working within a species. Yet a general principle has emerged that responses correlated with restoration mimic the response that would have been given to the uninterrupted sound of interest. Using the same technology to study different species will help us to better harness animal models of 'auditory scene analysis' to clarify the conserved neural mechanisms shaping the perceptual organization of sound and to advance strategies to improve hearing in natural environmental settings. (C) 2010 Elsevier B.V. All rights reserved.


Publication metadata

Author(s): Petkov CI, Sutter ML

Publication type: Article

Publication status: Published

Journal: Hearing Research

Year: 2011

Volume: 271

Issue: 1-2

Pages: 54-65

Print publication date: 10/06/2011

ISSN (print): 0378-5955

ISSN (electronic): 1878-5891

Publisher: Elsevier

URL: http://dx.doi.org/10.1016/j.heares.2010.05.011

DOI: 10.1016/j.heares.2010.05.011


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