title: Exploring consequences of short- and long-term deafness on speech production: a lip-tube perturbation study.
abstract: Studies have reported strong links between speech production and perception. We aimed to evaluate the role of long- and short-term auditory feedback alteration on speech production. Eleven adults with normal hearing (controls) and 17 cochlear implant (CI) users (7 pre-lingually deaf and 10 post-lingually deaf adults) were recruited. Short-term auditory feedback deprivation was induced by turning off the CI or by providing masking noise. Acoustic and articulatory measures were obtained during the production of /u/, with and without a tube inserted between the lips (perturbation), and with and without auditory feedback. F1 values were significantly different between the implant OFF and ON conditions for the pre-lingually deaf participants. In the absence of auditory feedback, the pre-lingually deaf participants moved the tongue more forward. Thus, a lack of normal auditory experience of speech may affect the internal representation of a vowel.
authors: Department of Linguistics, Université du Québec à Montréal , Montréal, Québec , Canada.
authors: Christine
authors: C
authors: Turgeon
authors: Amélie
authors: A
authors: Prémont
authors: Paméla
authors: P
authors: Trudeau-Fisette
authors: Lucie
authors: L
authors: Ménard
mesh_terms: D000328:Adult; D000368:Aged; D001184:Articulation Disorders / Q000175:diagnosis* / Q000628:therapy*; D003054:Cochlear Implants; D003638:Deafness / Q000175:diagnosis* / Q000628:therapy*; D056228:Feedback, Sensory; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013018:Sound Spectrography; D013061:Speech Acoustics; D013064:Speech Disorders / Q000175:diagnosis* / Q000628:therapy*; D013065:Speech Intelligibility; D013067:Speech Perception; D013068:Speech Production Measurement; D013070:Speech Therapy / Q000379:methods*; D014061:Tongue Habits; D014463:Ultrasonography
keywords: Acoustic analysis; cochlear implants; language acquisition; speech production measurement; ultrasound