Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Separation of mismatch negativity and the N1 wave in the auditory cortex of the cat: a topographic study
Autore:
Pincze, Z; Lakatos, P; Rajkai, C; Ulbert, I; Karmos, G;
Indirizzi:
Hungarian Acad Sci, Inst Psychol, H-1394 Budapest, Hungary Hungarian Acad Sci Budapest Hungary H-1394 hol, H-1394 Budapest, Hungary
Titolo Testata:
CLINICAL NEUROPHYSIOLOGY
fascicolo: 5, volume: 112, anno: 2001,
pagine: 778 - 784
SICI:
1388-2457(200105)112:5<778:SOMNAT>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
EVOKED-POTENTIALS; PITCH CHANGES; STIMULUS DEVIANCE; RESPONSES; ORGANIZATION; REPRESENTATION; LOCALIZATION; RABBITS; FIELD; TONES;
Keywords:
event-related potential; mismatch negativity; N1; auditory cortex; cat;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
40
Recensione:
Indirizzi per estratti:
Indirizzo: Pincze, Z Hungarian Acad Sci, Inst Psychol, POB 398, H-1394 Budapest, Hungary Hungarian Acad Sci POB 398 Budapest Hungary H-1394 est, Hungary
Citazione:
Z. Pincze et al., "Separation of mismatch negativity and the N1 wave in the auditory cortex of the cat: a topographic study", CLIN NEU, 112(5), 2001, pp. 778-784

Abstract

Objective: The amplitude distribution of the frequency mismatch negativity(MMN) and that of P1 and N1 components were investigated in cats to revealtheir sources in the auditory areas of the neocortex. Methods: Pure tone stimuli were given in a passive oddball paradigm with different degrees of deviance between the standard and deviant tones. Amplitude maps of event-related potential (ERP)components were generated from theresponses, recorded in awake, freely moving animals by a chronically implanted epidural electrode matrix, covering both the primary and secondary auditory fields. Results: The P1 and N1 components. appeared with highest amplitude on the middle ectosylvian gyrus, while the amplitude maximum of the MMN was ventral and rostral to them on the AII area. Both the latency and the peak amplitude of the MMN depended on the degree of deviance. Conclusions: The MMN is generated in the rostroventral part of the secondary auditory area, well separated from the sources of the P1 and N1 components. (C) 2001 Elsevier Science Ireland Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/04/20 alle ore 23:33:11