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Titolo:
Cerebral sources of electrical potentials related to human vocalization and mouth movement
Autore:
Tarkka, IM;
Indirizzi:
Kuopio Univ Hosp, Univ Kuopio, Brain Res & Rehabil Ctr Neuron, FIN-71130 Kuopio, Finland Kuopio Univ Hosp Kuopio Finland FIN-71130 ron, FIN-71130 Kuopio, Finland Kuopio Univ Hosp, Univ Kuopio, Dept Neurol & Neurosci, FIN-71130 Kuopio, Finland Kuopio Univ Hosp Kuopio Finland FIN-71130 sci, FIN-71130 Kuopio, Finland
Titolo Testata:
NEUROSCIENCE LETTERS
fascicolo: 3, volume: 298, anno: 2001,
pagine: 203 - 206
SICI:
0304-3940(20010209)298:3<203:CSOEPR>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
CORTEX; PREMOTOR; SPEECH;
Keywords:
event-related potentials; readiness potential; source analysis; speech motor control;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Tarkka, IM Kuopio Univ Hosp, Univ Kuopio, Brain Res & Rehabil Ctr Neuron, FIN-71130 Kuopio, Finland Kuopio Univ Hosp Kuopio Finland FIN-71130 130 Kuopio, Finland
Citazione:
I.M. Tarkka, "Cerebral sources of electrical potentials related to human vocalization and mouth movement", NEUROSCI L, 298(3), 2001, pp. 203-206

Abstract

Self-paced voluntary movements are reflected in scalp recordings of electrical potentials. Here the cerebral sources of the electrical wave forms related to human mouth movement and vocalization were identified non-invasively. Seven healthy volunteers performed vocalization and silent puckering movements. Movement-related cortical potentials (MRCP) were recorded with 30 electrodes. Source analysis of 404 ms window of MRCP revealed eight sources for vocalization and seven sources for puckering. A left frontal source (not present in puckering) accounted for 23% of the vocalization activity. Other active brain areas were the same in the two tasks. This evidence supports the idea that the left frontal lobe is activated before vocalization but not before motor act alone. (C) 2001 Elsevier Science Ireland Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/04/20 alle ore 03:42:33