Contributions of Auditory and Somatosensory Feedback to Vocal Motor Control

Autor/inn/en	Smith, Dante J.; Stepp, Cara; Guenther, Frank H.; Kearney, Elaine
Titel	Contributions of Auditory and Somatosensory Feedback to Vocal Motor Control
Quelle	In: Journal of Speech, Language, and Hearing Research, 63 (2020) 7, S.2039-2053 (15 Seiten) PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Smith, Dante J.) ORCID (Stepp, Cara) ORCID (Kearney, Elaine)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
Schlagwörter	Feedback (Response); Psychomotor Skills; Auditory Stimuli; Sensory Experience; Speech; Young Adults; Responses + Suchen Sie Ihr Suchwort? Psychomotorische Aktivität; Auditive Stimulation; Sinnerfahrung; Speaking; Sprechen; Young adult; Junger Erwachsener
Abstract	Purpose: To better define the contributions of somatosensory and auditory feedback in vocal motor control, a laryngeal perturbation experiment was conducted with and without masking of auditory feedback. Method: Eighteen native speakers of English produced a sustained vowel while their larynx was physically and externally displaced on a subset of trials. For the condition with auditory masking, speech-shaped noise was played via earphones at 90 dB SPL. Responses to the laryngeal perturbation were compared to responses by the same participants to an auditory perturbation experiment that involved a 100-cent downward shift in fundamental frequency (fo). Responses were also examined in relation to a measure of auditory acuity. Results: Compensatory responses to the laryngeal perturbation were observed with and without auditory masking. The level of compensation was greatest in the laryngeal perturbation condition without auditory masking, followed by the condition with auditory masking; the level of compensation was smallest in the auditory perturbation experiment. No relationship was found between the degree of compensation to auditory versus laryngeal perturbations, and the variation in responses in both perturbation experiments was not related to auditory acuity. Conclusions: The findings indicate that somatosensory and auditory feedback control mechanisms work together to compensate for laryngeal perturbations, resulting in the greatest degree of compensation when both sources of feedback are available. In contrast, these two control mechanisms work in competition in response to auditory perturbations, resulting in an overall smaller degree of compensation. (As Provided).
Anmerkungen	American Speech-Language-Hearing Association. 2200 Research Blvd #250, Rockville, MD 20850. Tel: 301-296-5700; Fax: 301-296-8580; e-mail: slhr@asha.org; Web site: http://jslhr.pubs.asha.org
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01