Vocal Pitch Discrimination in the Motor System

Autor/inn/en	D'Ausilio, Alessandro; Bufalari, Ilaria; Salmas, Paola; Busan, Pierpaolo; Fadiga, Luciano
Titel	Vocal Pitch Discrimination in the Motor System
Quelle	In: Brain and Language, 118 (2011) 1-2, S.9-14 (6 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0093-934X
DOI	10.1016/j.bandl.2011.02.007
Schlagwörter	Articulation (Speech); Singing; Intonation; Psychomotor Skills; Auditory Discrimination; Stimulation; Reaction Time; Brain Hemisphere Functions + Suchen Sie Ihr Suchwort? Gesang; Psychomotorische Aktivität; Reaktionsvermögen
Abstract	Speech production can be broadly separated into two distinct components: Phonation and Articulation. These two aspects require the efficient control of several phono-articulatory effectors. Speech is indeed generated by the vibration of the vocal-folds in the larynx (F0) followed by "filtering" by articulators, to select certain resonant frequencies out of that wave (F1, F2, F3, etc.). Recently it has been demonstrated that the motor representation of articulators (lips and tongue) participates in the discrimination of articulatory sounds (lips- and tongue-related speech sounds). Here we investigate whether the results obtained on articulatory sounds discrimination could be extended to phonation by applying a dual-pulse TMS protocol while subjects had to discriminate F0-shifted vocal utterances [a]. Stimulation over the larynx motor representation, compared to the control site (tongue/lips motor cortex), induced a reduction in RT for stimuli including a subtle pitch shift. We demonstrate that vocal pitch discrimination, in analogy with the articulatory component, requires the contribution of the motor system and that this effect is somatotopically organized. (Contains 2 tables and 2 figures.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10