| Effects of bilateral auditory cortical lesions on gap-detection thresholds in the ferret (Mustela putorius). | |
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MedLine Citation:
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PMID: 8888999 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Ferrets were tested for their ability to detect temporal gaps in noise before and after bilateral lesions of the primary auditory cortex. Thresholds for gap detection were determined first for normal animals with band-pass noises at various center frequencies (0.5 to 32 kHz) and at 8 kHz with various sound pressure levels (-10-70 dB). Gap-detection ability improved steadily as sound pressure increased up to 70 dB. No systematic relation was found between threshold and center frequency. To determine the effects of brain damage, ferrets were tested with 8-kHz band-pass noise at 70 dBSPL. After bilateral lesions of auditory cortex, ferrets were still capable of detecting gaps, but the mean threshold was elevated from 10.1 to 20.1 ms. The data demonstrate that auditory cortex is important for perceptual tasks requiring fine temporal resolution. |
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Authors:
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J B Kelly; B J Rooney; D P Phillips |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Behavioral neuroscience Volume: 110 ISSN: 0735-7044 ISO Abbreviation: Behav. Neurosci. Publication Date: 1996 Jun |
Date Detail:
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Created Date: 1997-01-23 Completed Date: 1997-01-23 Revised Date: 2003-11-14 |
Medline Journal Info:
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Nlm Unique ID: 8302411 Medline TA: Behav Neurosci Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 542-50 Citation Subset: IM |
Affiliation:
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Department of Psychology, Carleton University, Ottawa, Ontario, Canada. jkelly@ccs.carleton.ca |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Auditory Cortex / physiopathology* Auditory Perception* Ferrets Sound |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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