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ERIC Number: EJ1162294
Record Type: Journal
Publication Date: 2017-Nov
Pages: 8
Abstractor: As Provided
ISSN: ISSN-1092-4388
Generalized Adaptation to Dysarthric Speech
Borrie, Stephanie A.; Lansford, Kaitlin L.; Barrett, Tyson S.
Journal of Speech, Language, and Hearing Research, v60 n11 p3110-3117 Nov 2017
Purpose: Generalization of perceptual learning has received limited attention in listener adaptation studies with dysarthric speech. This study investigated whether adaptation to a talker with dysarthria could be predicted by the nature of the listener's prior familiarization experience, specifically similarity of perceptual features, and level of intelligibility. Method: Following an intelligibility pretest involving a talker with ataxic dysarthria, 160 listeners were familiarized with 1 of 7 talkers with dysarthria--who differed from the test talker in terms of perceptual similarity (same, similar, dissimilar) and level of intelligibility (low, mid, high)--or a talker with no neurological impairment (control). Listeners then completed an intelligibility posttest on the test talker. Results: All listeners benefited from familiarization with a talker with dysarthria; however, adaptation to the test talker was superior when the familiarization talker had similar perceptual features and reduced when the familiarization talker had low intelligibility. Conclusion: Evidence for both generalization and specificity of learning highlights the differential value of listeners' prior experiences for adaptation to, and improved understanding of, a talker with dysarthria. These findings broaden our theoretical knowledge of adaptation to degraded speech, as well as the clinical application of training paradigms that exploit perceptual processes for therapeutic gain.
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: National Institute on Deafness and Other Communication Disorders (NIDCD)
Authoring Institution: N/A
Grant or Contract Numbers: R21DC016084