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Titolo:
TOPOGRAPHIC EEG ACTIVATIONS DURING TIMBRE AND PITCH DISCRIMINATION TASKS USING MUSICAL SOUNDS
Autore:
AUZOU P; EUSTACHE F; ETEVENON P; PLATEL H; RIOUX P; LAMBERT J; LECHEVALIER B; ZARIFIAN E; BARON JC;
Indirizzi:
CHU CHARLES NICOLLE,1 RUE GERMONT F-76031 ROUEN FRANCE UNIV CAEN,CHU COTE NACRE,INSERM,U320 F-14033 CAEN FRANCE UNIV CAEN,CHU COTE NACRE,SERV NEUROL DEJERINE F-14033 CAEN FRANCE
Titolo Testata:
Neuropsychologia
fascicolo: 1, volume: 33, anno: 1995,
pagine: 25 - 37
SICI:
0028-3932(1995)33:1<25:TEADTA>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
HUMAN AUDITORY-CORTEX; SHORT-TERM-MEMORY; TONOTOPIC ORGANIZATION; MAGNETIC-FIELDS; ALPHA-ACTIVITY; PERCEPTION; SPEECH; BRAIN; HEMISPHERE; IDENTIFICATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
60
Recensione:
Indirizzi per estratti:
Citazione:
P. Auzou et al., "TOPOGRAPHIC EEG ACTIVATIONS DURING TIMBRE AND PITCH DISCRIMINATION TASKS USING MUSICAL SOUNDS", Neuropsychologia, 33(1), 1995, pp. 25-37

Abstract

Successive auditory stimulation sequences were presented binaurally to 18 young normal volunteers. Five conditions were investigated: two reference tasks, assumed to involve passive listening to couples of musical sounds, and three discrimination tasks, one dealing with pitch, and two with timbre (either with or without the attack). A symmetrical montage of 16 EEG channels was recorded for each subject across the different conditions. Two quantitative parameters of EEG activity were compared among the different sequences within five distinct frequency bands. As compared to a rest (no stimulation) condition, both passive listening conditions led to changes in primary auditory cortex areas. Both discrimination tasks for pitch and timbre led to right hemisphere EEG changes, organized in two poles: an anterior one and a posterior one. After discussing the electrophysiological aspects of this work, these results are interpreted in terms of a network including the right temporal neocortex and the right frontal lobe to maintain the acoustical information in an auditory working memory necessary to carry out the discrimination task.

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Documento generato il 01/12/20 alle ore 15:59:22