Please use this identifier to cite or link to this item: https://repositorio.ufrn.br/jspui/handle/123456789/19185
Title: EMERGENCE OF INVARIANT REPRESENTATION OF 2 VOCALIZATIONS IN THE AUDITORY CORTEX
Authors: Carruthers, Isaac M.
Laplagne, Diego
Jaegle, Andrew
Briguglio, John
Mwilambwe-Tshilobo, Laetitia
Natan, Ryan G.
Geffen, Maria N.
Keywords: AUDITORY CORTEX;INVARIANT REPRESENTATION OF VOCALIZATIONS
Issue Date: 26-Aug-2015
Publisher: J Neurophysiol
Citation: Carruthers IM, Laplagne D, Jaegle A, Briguglio J, Mwilambwe-Tshilobo L, Natan RG, Geffen MN. (2015) Emergency of invariant representation of vocalizations in the auditory cortex. J Neurophysiol. August 26, 2015). doi:10.1152/jn.00095.201. Article in Press.
Abstract: An essential task of the auditory system is to discriminate between different communication signals, such as vocalizations. In everyday acoustic environments, the auditory system needs to be capable of performing the discrimination under different acoustic distortions of vocalizations. To achieve this, the auditory system is thought to build a representation of vocalizations that is invariant to their basic acoustic transformations. The mechanism by which neuronal populations create such an invariant representation within the auditory cortex is only beginning to be understood. We recorded the responses of populations of neurons in the primary and non-primary auditory cortex of rats to original and acoustically distorted vocalizations. We found that populations of neurons in the non-primary auditory cortex exhibited greater invariance in encoding vocalizations over acoustic transformations than neuronal populations in the primary auditory cortex. These findings are consistent with the hypothesis that invariant representations are created gradually through hierarchical transformation within the auditory pathway.
URI: https://repositorio.ufrn.br/jspui/handle/123456789/19185
ISSN: 1522-1598
0022-3077
Appears in Collections:ICe - Artigos publicados em periódicos

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