Partial Compensation for Altered Auditory Feedback: A Tradeoff with Somatosensory Feedback?

Autor/inn/en	Katseff, Shira; Houde, John; Johnson, Keith
Titel	Partial Compensation for Altered Auditory Feedback: A Tradeoff with Somatosensory Feedback?
Quelle	In: Language and Speech, 55 (2012) 2, S.295-308 (14 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0023-8309
DOI	10.1177/0023830911417802
Schlagwörter	Speech; Auditory Perception; Acoustics; Vowels; Articulation (Speech); Adjustment (to Environment) + Suchen Sie Ihr Suchwort? Speaking; Sprechen; Auditive Wahrnehmung; Akustische Wahrnehmung; Akustik
Abstract	Talkers are known to compensate only partially for experimentally-induced changes to their auditory feedback. In a typical experiment, talkers might hear their F1 feedback shifted higher (so that /[epsilon]/ sounds like /[ash]/, for example), and compensate by lowering F1 in their subsequent speech by about a quarter of that distance. Here, we sought to characterize and understand partial compensation by examining how talkers respond to each step on a staircase of increasing shifts in auditory feedback. Subjects wore an apparatus which altered their real time auditory feedback. They were asked to repeat visually-presented "hVd" stimulus words while feedback was altered stepwise over the course of 360 trials. We used a novel analysis method to calculate each subject's compensation at each compensation step relative to their baseline. Results demonstrated that subjects compensated more for small feedback shifts than for larger shifts. We suggest that this pattern is consistent with vowel targets that incorporate auditory and somatosensory information, and a speech motor control system that is driven by differential weighting of auditory and somatosensory feedback. (Contains 1 note, 1 table, and 7 figures.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10