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Titolo:
Broca's area and the discrimination of frequency transitions: A functionalMRI study
Autore:
Muller, RA; Kleinhans, N; Courchesne, E;
Indirizzi:
Childrens Hosp, Res Ctr, Lab Neurosci Autism, La Jolla, CA 92037 USA Childrens Hosp La Jolla CA USA 92037 rosci Autism, La Jolla, CA 92037 USA Univ Calif San Diego, Dept Cognit Sci, La Jolla, CA 92093 USA Univ Calif San Diego La Jolla CA USA 92093 it Sci, La Jolla, CA 92093 USA Univ Calif San Diego, Dept Neurosci, La Jolla, CA 92093 USA Univ Calif SanDiego La Jolla CA USA 92093 urosci, La Jolla, CA 92093 USA San Diego State Univ, Joint Doctoral Program Clin Psychol, San Diego, CA 92120 USA San Diego State Univ San Diego CA USA 92120 chol, San Diego, CA 92120 USA Univ Calif San Diego, San Diego, CA 92120 USA Univ Calif San Diego San Diego CA USA 92120 iego, San Diego, CA 92120 USA
Titolo Testata:
BRAIN AND LANGUAGE
fascicolo: 1, volume: 76, anno: 2001,
pagine: 70 - 76
SICI:
0093-934X(200101)76:1<70:BAATDO>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
INFERIOR PREFRONTAL CORTEX; HUMAN BRAIN; FMRI; PET; ATTENTION; LATERALIZATION; SPECIALIZATION; ANATOMY; PROSODY; SPEECH;
Keywords:
Broca's area; functional MRI; tonal discrimination; lateralization;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Life Sciences
Citazioni:
37
Recensione:
Indirizzi per estratti:
Indirizzo: Muller, RA Childrens Hosp, Res Ctr, Lab Neurosci Autism, 8110 La Jolla Shores Dr 200,La Jolla, CA 92037 USA Childrens Hosp 8110 La Jolla Shores Dr 200 La Jolla CA USA 92037
Citazione:
R.A. Muller et al., "Broca's area and the discrimination of frequency transitions: A functionalMRI study", BRAIN LANG, 76(1), 2001, pp. 70-76

Abstract

The left inferior frontal lobe has been traditionally viewed as a "language area," although its involvement in the discrimination of rapid nonverbal frequency changes has been also shown. Using functional MRI, we studied seven healthy adults during discrimination of relatively slow (200 ms) tonal frequency glides. Compared to a control task, in which subjects indiscriminately responded to white noise bursts, tonal discrimination was associated with bilateral superior and middle temporal and medial frontal activations. Inferior frontal activations were bilateral, but stronger on the left. Contrary to previous studies comparing discrimination of slow frequency changesto rest, our results suggest that such discriminations-when compared to anauditory control task-activate the left inferior frontal gyms. Our findings are consistent with a participation of Broca's area in nonlinguistic processes besides its known roles in semantic, syntactic, and phonological functions, (C) 2001 Academic Press.

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Documento generato il 07/04/20 alle ore 22:36:01