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Titolo:
Analysis of speech sounds is left-hemisphere predominant at 100-150 ms after sound onset
Autore:
Rinne, T; Alho, K; Alku, P; Holi, M; Sinkkonen, J; Virtanen, J; Bertrand, O; Naatanen, R;
Indirizzi:
Univlandsinki, Dept Psychol, Cognit Brain Res Unit, FIN-00014 Helsinki, Fin Univ Helsinki Helsinki Finland FIN-00014 s Unit, FIN-00014 Helsinki, Fin Univ Helsinki, Cent Hosp, Dept Radiol, FIN-00014 Helsinki, Finland Univ Helsinki Helsinki Finland FIN-00014 ol, FIN-00014 Helsinki, Finland Helsinki Univ Technol, Acoust Lab, FIN-02150 Espoo, Finland Helsinki Univ Technol Espoo Finland FIN-02150 , FIN-02150 Espoo, Finland Univlandsinki, Cent Hosp, Med Engn Ctr, Biomag Lab, FIN-00014 Helsinki, Fin Univ Helsinki Helsinki Finland FIN-00014 ag Lab, FIN-00014 Helsinki, Fin INSERM, U280, F-69008 Lyon, France INSERM Lyon France F-69008INSERM, U280, F-69008 Lyon, France
Titolo Testata:
NEUROREPORT
fascicolo: 5, volume: 10, anno: 1999,
pagine: 1113 - 1117
SICI:
0959-4965(19990406)10:5<1113:AOSSIL>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
HUMAN AUDITORY-CORTEX; MAGNETIC BRAIN RESPONSES; SELECTIVE-ATTENTION; DISCRIMINATION; GENERATORS; STIMULI;
Keywords:
event-related potentials; hemispheric specialization; mismatch negativity; speech perception;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Rinne, T Univnki,sinki, Dept Psychol, Cognit Brain Res Unit, POB 13, FIN-00014 Helsi Univ Helsinki POB 13 Helsinki Finland FIN-00014 FIN-00014 Helsi
Citazione:
T. Rinne et al., "Analysis of speech sounds is left-hemisphere predominant at 100-150 ms after sound onset", NEUROREPORT, 10(5), 1999, pp. 1113-1117

Abstract

HEMISPHERIC specialization of human speech processing has been found in brain imaging studies using fMRI and PET. Due to the restricted time resolution, these methods cannot, however, determine the stage of auditory processing at which this specialization first emerges. We used a dense electrode array covering the whole scalp to record the mismatch negativity (MMN), an event-related brain potential (ERP) automatically elicited by occasional changes in sounds, which ranged from non-phonetic (tones) to phonetic (vowels). MMN can be used to probe auditory central processing on a millisecond scale with no attention-dependent task requirements. Our results indicate that speech processing occurs predominantly in the left hemisphere at the early,pre-attentive level of auditory analysis. NeuroReport 10:1113-1117 (C) 1999 Lippincott Williams & Wilkins.

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Documento generato il 07/08/20 alle ore 00:41:09