Responses to Auditory Feedback Manipulations in Speech May Be Affected by Previous Exposure to Auditory Errors

Autor/inn/en	Niziolek, Caroline A.; Parrell, Benjamin
Titel	Responses to Auditory Feedback Manipulations in Speech May Be Affected by Previous Exposure to Auditory Errors
Quelle	In: Journal of Speech, Language, and Hearing Research, 64 (2021) 6, S.2169-2181 (13 Seiten) PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Niziolek, Caroline A.) ORCID (Parrell, Benjamin)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
Schlagwörter	Acoustics; Speech; Auditory Perception; Reliability; Responses; Wisconsin (Madison) + Suchen Sie Ihr Suchwort? Akustik; Speaking; Sprechen; Auditive Wahrnehmung; Akustische Wahrnehmung; Reliabilität
Abstract	Purpose: Speakers use auditory feedback to guide their speech output, although individuals differ in the magnitude of their compensatory response to perceived errors in feedback. Little is known about the factors that contribute to the compensatory response or how fixed or flexible they are within an individual. Here, we test whether manipulating the perceived reliability of auditory feedback modulates speakers' compensation to auditory perturbations, as predicted by optimal models of sensorimotor control. Method: Forty participants produced monosyllabic words in two separate sessions, which differed in the auditory feedback given during an initial exposure phase. In the "veridical" session exposure phase, feedback was normal. In the "noisy" session exposure phase, small, random formant perturbations were applied, reducing reliability of auditory feedback. In each session, a subsequent test phase introduced larger unpredictable formant perturbations. We assessed whether the magnitude of within-trial compensation for these larger perturbations differed across the two sessions. Results: Compensatory responses to downward (though not upward) formant perturbations were larger in the veridical session than the noisy session. However, in post hoc testing, we found the magnitude of this effect is highly dependent on the choice of analysis procedures. Compensation magnitude was not predicted by other production measures, such as formant variability, and was not reliably correlated across sessions. Conclusions: Our results, though mixed, provide tentative support that the feedback control system monitors the reliability of sensory feedback. These results must be interpreted cautiously given the potentially limited stability of auditory feedback compensation measures across analysis choices and across sessions. (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