| Frequency response areas of mouse inferior colliculus neurons: II. Critical bands. | |
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MedLine Citation:
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PMID: 17164664 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Critical bands are perceptual filters that detect and separate spectral peaks in complex sounds. Here, we show that the main properties of psychophysically defined critical bands, as measured in narrow-band noise masking tests (species-specific frequency dependence and intensity independence of the bandwidths), are present in single neurons of the mouse's central nucleus of the inferior colliculus. Bandwidths of critical bands amount to, on average, 3/8-1/3 octave related to the neurons' characteristic frequencies. They are not determined by the shapes of the neurons' excitatory receptive fields. The results support the view that frequency resolution in the auditory system is shaped to its perceptual level in the main nucleus of the auditory midbrain. |
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Authors:
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Marina Egorova; Inna Vartanyan; Günter Ehret |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Neuroreport Volume: 17 ISSN: 0959-4965 ISO Abbreviation: Neuroreport Publication Date: 2006 Nov |
Date Detail:
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Created Date: 2006-12-13 Completed Date: 2007-03-19 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9100935 Medline TA: Neuroreport Country: England |
Other Details:
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Languages: eng Pagination: 1783-6 Citation Subset: IM |
Affiliation:
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Laboratory of Comparative Physiology of Sensory Systems, I M Sechenov Institute of Evolutionary Physiology and Biochemistry, RAS, St Petersburg, Russia. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Auditory Threshold / physiology* Female Inferior Colliculi / cytology* Mice Neurons / physiology* Pitch Perception / physiology* Psychophysics / methods Reaction Time Reference Values |
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