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Titolo:
Maturation of frontal and temporal components of mismatch negativity (MMN)in children
Autore:
Gomot, M; Giard, MH; Roux, S; Barthelemy, C; Bruneau, N;
Indirizzi:
CHU Bretonneau, INSERM, Child Psychiat Unit, F-37044 Tours, France CHU Bretonneau Tours France F-37044 Psychiat Unit, F-37044 Tours, France Brain Signals & Proc Lab, INSERM, U280, F-69003 Lyon, France Brain Signals& Proc Lab Lyon France F-69003 U280, F-69003 Lyon, France
Titolo Testata:
NEUROREPORT
fascicolo: 14, volume: 11, anno: 2000,
pagine: 3109 - 3112
SICI:
0959-4965(20000928)11:14<3109:MOFATC>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
AUDITORY-CORTEX; BRAIN; STIMULUS; SEQUENCE; SPEECH;
Keywords:
auditory evoked potential (AEP); children; mapping; maturation; mismatch negativity (MMN); scalp current density (SCD);
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Gomot, M CHU Bretonneau, INSERM, Child Psychiat Unit, 2 Bd Tonnelle, F-37044 Tours,France CHU Bretonneau 2 Bd Tonnelle Tours France F-37044 4 Tours,France
Citazione:
M. Gomot et al., "Maturation of frontal and temporal components of mismatch negativity (MMN)in children", NEUROREPORT, 11(14), 2000, pp. 3109-3112

Abstract

The mismatch negativity (MMN) response of auditory ERPs in adults appears to result from several overlapping components involving both frontal and temporal brain areas. Our aim was to test whether a similar configuration could be observed in children, and to examine the maturation rates of the different components. MMN (standard tones: 1000 Hz, deviants: 1100 Hz) was recorded from 28 scalp electrodes in 24 healthy children aged from 5 to 10 and in eight adults for comparison. Scalp current density analysis revealed both temporal and frontal components in children of all ages as well as in adults. Moreover the amplitudes of the temporal components were significantly greater in children than in adults, whereas the frontal components were similar at all ages. The results strongly suggest that MMN is mediated by at least two separate neural systems, and that the frontal system matures earlier than the sensory-specific system. NeuroReport 11:3109-3112 (C) 2000 Lippincott Williams & Wilkins.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/01/20 alle ore 18:31:31