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Titolo:
A neural code for low-frequency sound localization in mammals
Autore:
McAlpine, D; Jiang, D; Palmer, AR;
Indirizzi:
Univ Nottingham, MRC, Inst Hearing Res, Nottingham NG7 2RD, England Univ Nottingham Nottingham England NG7 2RD , Nottingham NG7 2RD, England Univ London Univ Coll, Dept Physiol, London WC1E 6BT, England Univ London Univ Coll London England WC1E 6BT , London WC1E 6BT, England
Titolo Testata:
NATURE NEUROSCIENCE
fascicolo: 4, volume: 4, anno: 2001,
pagine: 396 - 401
SICI:
1097-6256(200104)4:4<396:ANCFLS>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
INFERIOR COLLICULUS NEURONS; INTERAURAL PHASE DISPARITY; SUPERIOR OLIVARY COMPLEX; OWL TYTO-ALBA; BARN OWL; RESPONSE PROPERTIES; CHANGING FREQUENCY; CONVERGENT INPUT; AUDITORY-SYSTEM; TIME DIFFERENCE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
44
Recensione:
Indirizzi per estratti:
Indirizzo: McAlpine, D Univ Nottingham, MRC, Inst Hearing Res, Sci Rd, Nottingham NG72RD, England Univ Nottingham Sci Rd Nottingham England NG7 2RD RD, England
Citazione:
D. McAlpine et al., "A neural code for low-frequency sound localization in mammals", NAT NEUROSC, 4(4), 2001, pp. 396-401

Abstract

We report a systematic relationship between sound-frequency tuning and sensitivity to interaural time delays for neurons in the midbrain nucleus of the inferior colliculus; neurons with relatively low best frequencies (BFs) showed response peaks at long delays, whereas neurons with relatively high BFs showed response peaks at short delays. The consequence of this relationship is that the steepest region of the function relating discharge rate tointeraural time delay (ITD) fell close to midline for all neurons irrespective of BF. These data provide support for a processing of the output of coincidence detectors subserving low-frequency sound localization in which the location of a sound source is determined by the activity in two broad, hemispheric spatial channels, rather than numerous channels tuned to discretespatial positions.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 18:17:21