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Abur, Defne; Subaciute, Austeja; Daliri, Ayoub; Lester-Smith, Rosemary A.; Lupiani, Ashling A.; Cilento, Dante; Enos, Nicole M.; Weerathunge, Hasini R.; Tardif, Monique C.; Stepp, Cara E. – Journal of Speech, Language, and Hearing Research, 2021
Purpose: Unexpected and sustained manipulations of auditory feedback during speech production result in "reflexive" and "adaptive" responses, which can shed light on feedback and feedforward auditory-motor control processes, respectively. Persons with Parkinson's disease (PwPD) have shown aberrant reflexive and adaptive…
Descriptors: Feedback (Response), Auditory Perception, Psychomotor Skills, Articulation (Speech)
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Lester-Smith, Rosemary A.; Daliri, Ayoub; Enos, Nicole; Abur, Defne; Lupiani, Ashling A.; Letcher, Sophia; Stepp, Cara E. – Journal of Speech, Language, and Hearing Research, 2020
Purpose: The purpose of this study was to explore the relationship between feedback and feedforward control of articulation and voice by measuring reflexive and adaptive responses to first formant (F[subscript 1]) and fundamental frequency (f[subscript o]) perturbations. In addition, perception of F[subscript 1] and f[subscript o] perturbation was…
Descriptors: Articulation (Speech), Auditory Perception, Speech Communication, Acoustics