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Titolo:
Spatial representation of frequency-modulated tones in gerbil auditory cortex revealed by epidural electrocorticography
Autore:
Ohl, FW; Schulze, H; Scheich, H; Freeman, WJ;
Indirizzi:
Univ Calif Berkeley, Dept Mol & Cell Biol, Div Neurobiol, Berkeley, CA 94720 USA Univ Calif Berkeley Berkeley CA USA 94720 urobiol, Berkeley, CA 94720 USA
Titolo Testata:
JOURNAL OF PHYSIOLOGY-PARIS
fascicolo: 5-6, volume: 94, anno: 2000,
pagine: 549 - 554
SICI:
0928-4257(200009/12)94:5-6<549:SROFTI>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
MONGOLIAN GERBIL; FUNCTIONAL-ORGANIZATION; MERIONES-UNGUICULATUS; EVOKED-POTENTIALS; SENSITIVITY; STIMULI; DISCRIMINATION; RESPONSES; NEURONS; 2-DEOXYGLUCOSE;
Keywords:
frequency-modulation; electrocorticography; auditory cortex; non-stationary stimuli; topography;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
33
Recensione:
Indirizzi per estratti:
Indirizzo: Ohl, FW Leibniz Inst Neurobiol, Brenneckestr 6, D-39118 Magdeburg, GermanyLeibniz Inst Neurobiol Brenneckestr 6 Magdeburg Germany D-39118 y
Citazione:
F.W. Ohl et al., "Spatial representation of frequency-modulated tones in gerbil auditory cortex revealed by epidural electrocorticography", J PHYSL-PAR, 94(5-6), 2000, pp. 549-554

Abstract

The present study investigated the topography of epidurally recorded middle latency components Fl and N1 evoked by spectrally dynamic stimuli (linearly frequency-modulated (FM) tones) with respect to the tonotopic structure of the right primary auditory cortex, field At. Whereas the gross topography corresponded to the spectral content of the FM tones, specific tonotopic offsets wen found between the potential distributions evoked by FM tones ofdifferent modulation direction (i.e. 'rising' vs. 'falling'). Potentials evoked by rising FM tones were located at tonotopic positions corresponding to higher frequencies compared with potentials evoked by falling FM tones. Data indicated that the magnitude of these offsets can be attributed to thelocal tonotopic resolution in AI and are not dependent on the modulation rate. (C) 2000 Elsevier Science Ltd. Published by Editions scientifiques et medicales Elsevier SASd.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/03/20 alle ore 19:40:51