Source:http://linkedlifedata.com/resource/pubmed/id/20036316
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
2010-2-1
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pubmed:abstractText |
The aim of the present study was to evaluate the effect of background noise on the directional sensitivity of neurons in the deep layers of the superior colliculus. Extra-cellular recordings were carried out in anaesthetized adult Long Evans rats. When stimulated in a noisy environment, most of the neurons remained sensitive to sound direction and only a few changed their optimal direction by more than 15 degrees. When stimulated at their optimal direction in the presence of background noise, a majority of neurons did not modify their response rate, whereas a limited proportion of neurons showed either a significant drop or facilitation of their response rate. Moreover, the neurons' receptive fields showed significant tuning modifications in the presence of background noise. In a noisy environment, the larger receptive fields became narrower, whereas the sharply tuned receptive fields got broader.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Feb
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pubmed:issn |
1872-7972
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pubmed:author | |
pubmed:copyrightInfo |
(c) 2009 Elsevier Ireland Ltd. All rights reserved.
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pubmed:issnType |
Electronic
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pubmed:day |
5
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pubmed:volume |
470
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
28-32
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pubmed:meshHeading |
pubmed-meshheading:20036316-Acoustic Stimulation,
pubmed-meshheading:20036316-Action Potentials,
pubmed-meshheading:20036316-Analysis of Variance,
pubmed-meshheading:20036316-Animals,
pubmed-meshheading:20036316-Environment,
pubmed-meshheading:20036316-Microelectrodes,
pubmed-meshheading:20036316-Neuronal Plasticity,
pubmed-meshheading:20036316-Neurons,
pubmed-meshheading:20036316-Noise,
pubmed-meshheading:20036316-Normal Distribution,
pubmed-meshheading:20036316-Rats,
pubmed-meshheading:20036316-Rats, Long-Evans,
pubmed-meshheading:20036316-Sound Localization,
pubmed-meshheading:20036316-Superior Colliculi
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pubmed:year |
2010
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pubmed:articleTitle |
Coding sound direction in noisy environment in the superior colliculus of the rat.
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pubmed:affiliation |
Centre de Recherche en Neuropsychologie et Cognition, Département de Psychologie, Université de Montréal, C.P. 6128, Succ. Centre-Ville, Montréal, Québec, Canada.
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pubmed:publicationType |
Journal Article
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