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Titolo:
ACTIVATION OF AUDITORY-CORTEX DURING SILENT LIPREADING
Autore:
CALVERT GA; BULLMORE ET; BRAMMER MJ; CAMPBELL R; WILLIAMS SCR; MCGUIRE PK; WOODRUFF PWR; IVERSON SD; DAVID AS;
Indirizzi:
UNIV OXFORD,WARNEFORD HOSP,DEPT PSYCHIAT OXFORD OX3 7JX ENGLAND UNIV OXFORD,WARNEFORD HOSP,DEPT EXPT PSYCHOL OXFORD OX3 7JX ENGLAND INST PSYCHIAT LONDON SE5 8AF ENGLAND UNIV COLL LONDON,DEPT HUMAN COMMUN SCI LONDON WC1 1PG ENGLAND UNIV LONDON KINGS COLL,SCH MED & DENT LONDON SE5 8AZ ENGLAND
Titolo Testata:
Science
fascicolo: 5312, volume: 276, anno: 1997,
pagine: 593 - 596
SICI:
0036-8075(1997)276:5312<593:AOADSL>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
PERCEPTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
28
Recensione:
Indirizzi per estratti:
Citazione:
G.A. Calvert et al., "ACTIVATION OF AUDITORY-CORTEX DURING SILENT LIPREADING", Science, 276(5312), 1997, pp. 593-596

Abstract

Watching a speaker's lips during face-to-face conversation (lipreading) markedly improves speech perception, particularly in noisy conditions. With functional magnetic resonance imaging it was found that theselinguistic visual cues are sufficient to activate auditory cortex in normal hearing individuals in the absence of auditory speech sounds. Two further experiments suggest that these auditory cortical areas are not engaged when an individual is viewing nonlinguistic facial movements but appear to be activated by silent meaningless speechlike movements (pseudospeech). This supports psycholinguistic evidence that seen speech influences the perception of heard speech at a prelexical stage.

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Documento generato il 04/04/20 alle ore 02:26:55