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Assessing Ecologically Valid Methods of Auditory Feedback Measurement in Individuals with Typical Speech
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Tomassi, Nicole E.; Weerathunge, Hasini R.; Cushman, Megan R.; Bohland, Jason W.; Stepp, Cara E. – Journal of Speech, Language, and Hearing Research, 2022
Purpose: Auditory feedback is thought to contribute to the online control of speech production. Yet, the standard method of estimating auditory feedback control (i.e., reflexive responses to auditory-motor perturbations), although sound, requires specialized instrumentation, meticulous calibration, unnatural tasks, and specific acoustic…
Descriptors: Auditory Perception, Acoustics, Measurement Techniques, Speech
Auditory-Motor Perturbations of Voice Fundamental Frequency: Feedback Delay and Amplification
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Weerathunge, Hasini R.; Abur, Defne; Enos, Nicole M.; Brown, Katherine M.; Stepp, Cara E. – Journal of Speech, Language, and Hearing Research, 2020
Purpose: Gradual and sudden perturbations of vocal fundamental frequency (f[subscript o]), also known as adaptive and reflexive f[subscript o] perturbations, are techniques to study the influence of auditory feedback on voice f[subscript o] control mechanisms. Previous vocal f[subscript o] perturbations have incorporated varied setup-specific…
Descriptors: Acoustics, Articulation (Speech), Auditory Stimuli, Young Adults
Feedback and Feedforward Auditory-Motor Processes for Voice and Articulation in Parkinson's Disease
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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)
The Relation of Articulatory and Vocal Auditory-Motor Control in Typical Speakers
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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
Categorization in the Perception of Breathy Voice Quality and Its Relation to Voice Production in Healthy Speakers
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Park, Yeonggwang; Perkell, Joseph S.; Matthies, Melanie L.; Stepp, Cara E. – Journal of Speech, Language, and Hearing Research, 2019
Purpose: Previous studies of speech articulation have shown that individuals who can perceive smaller differences between similar-sounding phonemes showed larger contrasts in their productions of those phonemes. Here, a similar relationship was examined between the perception and production of breathy voice quality. Method: Twenty females with…
Descriptors: Speech Communication, Articulation (Speech), Females, Auditory Perception
Talker Identification across Source Mechanisms: Experiments with Laryngeal and Electrolarynx Speech
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Perrachione, Tyler K.; Stepp, Cara E.; Hillman, Robert E.; Wong, Patrick C. M. – Journal of Speech, Language, and Hearing Research, 2014
Purpose: The purpose of this study was to determine listeners' ability to learn talker identity from speech produced with an electrolarynx, explore source and filter differentiation in talker identification, and describe acoustic-phonetic changes associated with electrolarynx use. Method: Healthy adult control listeners learned to identify…
Descriptors: Listening Skills, Auditory Perception, Acoustics, Phonetics