The Role of Somatosensory Information in Speech Perception: Imitation Improves Recognition of Disordered Speech

Autor/inn/en	Borrie, Stephanie A.; Schäfer, Martina C. M.
Titel	The Role of Somatosensory Information in Speech Perception: Imitation Improves Recognition of Disordered Speech
Quelle	In: Journal of Speech, Language, and Hearing Research, 58 (2015) 6, S.1708-1716 (9 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
DOI	10.1044/2015_JSLHR-S-15-0163
Schlagwörter	Articulation Impairments; Feedback (Response); Acoustics; Pretests Posttests; Control Groups; Experimental Groups; Comparative Analysis; Imitation; Auditory Perception; Training; Speech; Instructional Effectiveness + Suchen Sie Ihr Suchwort? Artikulationsstörung; Akustik; Auditive Wahrnehmung; Akustische Wahrnehmung; Ausbildung; Speaking; Sprechen; Unterrichtserfolg
Abstract	Purpose: Perceptual learning paradigms involving written feedback appear to be a viable clinical tool to reduce the intelligibility burden of dysarthria. The underlying theoretical assumption is that pairing the degraded acoustics with the intended lexical targets facilitates a remapping of existing mental representations in the lexicon. This study investigated whether ties to mental representations can be strengthened by way of a somatosensory motor trace. Method: Following an intelligibility pretest, 100 participants were assigned to 1 of 5 experimental groups. The control group received no training, but the other 4 groups received training with dysarthric speech under conditions involving a unique combination of auditory targets, written feedback, and/or a vocal imitation task. All participants then completed an intelligibility posttest. Results: Training improved intelligibility of dysarthric speech, with the largest improvements observed when the auditory targets were accompanied by both written feedback and an imitation task. Further, a significant relationship between intelligibility improvement and imitation accuracy was identified. Conclusions: This study suggests that somatosensory information can strengthen the activation of speech sound maps of dysarthric speech. The findings, therefore, implicate a bidirectional relationship between speech perception and speech production as well as advance our understanding of the mechanisms that underlie perceptual learning of degraded speech. (As Provided).
Anmerkungen	American Speech-Language-Hearing Association (ASHA). 10801 Rockville Pike, Rockville, MD 20852. Tel: 800-638-8255; Fax: 301-571-0457; e-mail: subscribe@asha.org; Web site: http://jslhr.asha.org
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01