Source:http://linkedlifedata.com/resource/pubmed/id/11318379
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
1
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| pubmed:dateCreated |
2001-4-24
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| pubmed:abstractText |
Previous studies have shown that inferior collicular neurons of the big brown bat, Eptesicus fuscus, serve as short-, band-, long- and all-pass filters for sound durations. Neurons with band-, short- and long-pass filtering characteristics discharged maximally to a specific sound duration or a range of sound durations. In contrast, neurons with all-pass filtering characteristics do not have duration selectivity. To determine if duration-tuning characteristics of collicular neurons were tolerant to changes in sound intensity, we examined the duration-tuning characteristics of collicular neurons using a wide range of sound intensities. Duration-tuning characteristics examined included the type, bandwidth and slope of duration-tuning curves. Sound intensity delivered within 20 dB of minimum threshold did not affect duration-tuning characteristics of all collicular neurons studied. Sound intensities at still higher levels did not affect the tuning characteristics of two-thirds of collicular neurons but decreased the duration selectivity and changed the duration-tuning curves of the remaining one-third of neurons from one type to another. However, these two groups of duration-tuning collicular neurons were not separately organized inside the inferior colliculus. The biological relevance of these findings to bat echolocation is discussed.
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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 |
0340-7594
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| pubmed:author | |
| pubmed:issnType |
Print
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| pubmed:volume |
187
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| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
63-73
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| pubmed:dateRevised |
2009-6-4
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| pubmed:meshHeading |
pubmed-meshheading:11318379-Acoustic Stimulation,
pubmed-meshheading:11318379-Action Potentials,
pubmed-meshheading:11318379-Animals,
pubmed-meshheading:11318379-Chiroptera,
pubmed-meshheading:11318379-Echolocation,
pubmed-meshheading:11318379-Electrodes, Implanted,
pubmed-meshheading:11318379-Inferior Colliculi,
pubmed-meshheading:11318379-Neurons
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| pubmed:year |
2001
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| pubmed:articleTitle |
The effect of sound intensity on duration-tuning characteristics of bat inferior collicular neurons.
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| pubmed:affiliation |
Division of Biological Sciences, University of Missouri-Columbia, 65211, USA. jenp@missouri.edu
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| pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't
|