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Titolo:
Changes in acoustic features and their conjunctions are processed by separate neuronal populations
Autore:
Takegata, R; Huotilainen, M; Rinne, T; Naatanen, R; Winkler, I;
Indirizzi:
Univ Helsinki, Dept Psychol, Cognit Brain Res Unit, FIN-00014 Helsinki, Finland Univ Helsinki Helsinki Finland FIN-00014 it, FIN-00014 Helsinki, Finland Univ Helsinki, Cent Hosp, Med Engn Ctr, Biomag Lab, FIN-00014 Helsinki, Finland Univ Helsinki Helsinki Finland FIN-00014 ab, FIN-00014 Helsinki, Finland Hungarian Acad Sci, Inst Psychol, H-1051 Budapest, Hungary Hungarian Acad Sci Budapest Hungary H-1051 hol, H-1051 Budapest, Hungary
Titolo Testata:
NEUROREPORT
fascicolo: 3, volume: 12, anno: 2001,
pagine: 525 - 529
SICI:
0959-4965(20010305)12:3<525:CIAFAT>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
AUDITORY SENSORY MEMORY; MISMATCH NEGATIVITY MMN; COMPLEX SOUNDS; CORTEX; REPRESENTATION; MECHANISMS; RESPONSES; STIMULI; SINGLE;
Keywords:
auditory event-related potentials; feature conjunction; MEG; mismatch negativity; neural representation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
20
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., "Changes in acoustic features and their conjunctions are processed by separate neuronal populations", NEUROREPORT, 12(3), 2001, pp. 525-529

Abstract

We investigated the relationship between the neuronal populations involvedin detecting change in two acoustic features and their conjunction. Equivalent current dipole (ECD) models of the magnetic mismatch negativity (MMNm)generators were calculated for infrequent changes in pitch. perceived sound source location. and the conjunction of these two features. All of these three changes elicited MMNms that were generated in the vicinity of auditory cortex. The location of the ECD best describing the MMNm to the conjunction deviant was anterior to those for the MMNm responses elicited by either one of the constituent features. The present data thus suggest that at least partially separate neuronal populations are involved in detecting change in acoustic features and feature conjunctions. NeuroReport 12:525-529 (C) 2001 Lippincott Williams & Wilkins.

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Documento generato il 05/07/20 alle ore 10:22:40