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Titolo:
Common neural mechanism for processing onset-to-onset intervals and silentgaps in sound sequences
Autore:
Takegata, R; Syssoeva, O; Winkler, I; Paavilainen, P; Naatanen, R;
Indirizzi:
Univ Helsinki, Dept Psychol, Cognit Brain Res Unit, FIN-00014 Helsinki, Finland Univ Helsinki Helsinki Finland FIN-00014 it, FIN-00014 Helsinki, Finland Hungarian Acad Sci, Inst Psychol, H-1394 Budapest, Hungary Hungarian Acad Sci Budapest Hungary H-1394 hol, H-1394 Budapest, Hungary Univ Helsinki, Cent Hosp, Med Engn Ctr, BioMag Lab, FIN-00029 Helsinki, Finland Univ Helsinki Helsinki Finland FIN-00029 ab, FIN-00029 Helsinki, Finland
Titolo Testata:
NEUROREPORT
fascicolo: 8, volume: 12, anno: 2001,
pagine: 1783 - 1787
SICI:
0959-4965(20010613)12:8<1783:CNMFPO>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
EVENT-RELATED POTENTIALS; MISMATCH NEGATIVITY; AUDITORY STIMULUS; FEATURES; DEVIANTS; MMN;
Keywords:
audition; event-related potential; mismatch negativity (MMN); neural representation; perceptual organization; temporal processing;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Takegata, R Univ Helsinki, Dept Psychol, Cognit Brain Res Unit, POB 13, FIN-00014 Helsinki, Finland Univ Helsinki POB 13 Helsinki Finland FIN-00014 inki, Finland
Citazione:
R. Takegata et al., "Common neural mechanism for processing onset-to-onset intervals and silentgaps in sound sequences", NEUROREPORT, 12(8), 2001, pp. 1783-1787

Abstract

Stimulus onset asynchrony (SOA) and inter-stimulus interval (ISI) are important factors in the perceptual organization of sound sequences. The present study tested whether these two temporal parameters are independently processed in the auditory system. Independence was studied by testing the additivity of mismatch negativity (MMN). Four conditions differing in their temporal regularities were administered: (I) constant SOA and ISI, (2) constantSOA and variable ISI, (3) constant ISI and variable SOA, and (4) variable SOA and ISI. The MMN elicited by simultaneous deviance from the constant SOA and ISI (Condition I) was compared with an additive model calculated fromthe MMNs elicited in the other conditions. The amplitude of the MMN in Condition I was significantly larger than that of the modeled MMN; suggesting that SOA and ISI are processed by interactive or common neural mechanisms. NeuroReport 12:1783-1787 (C) 2001 Lippincott Williams & Wilkins.

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Documento generato il 29/03/20 alle ore 14:53:10