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Chon, HeeCheong; Kraft, Shelly Jo; Zhang, Jingfei; Loucks, Torrey; Ambrose, Nicoline G. – Journal of Speech, Language, and Hearing Research, 2013
Purpose: Delayed auditory feedback (DAF) is known to induce stuttering-like disfluencies (SLDs) and cause speech rate reductions in normally fluent adults, but the reason for speech disruptions is not fully known, and individual variation has not been well characterized. Studying individual variation in susceptibility to DAF may identify factors…
Descriptors: Acoustics, Adults, Speech, Individual Differences
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Loucks, Torrey; Chon, HeeCheong; Han, Woojae – International Journal of Language & Communication Disorders, 2012
Background: Altered auditory feedback can facilitate speech fluency in adults who stutter. However, other findings suggest that adults who stutter show anomalies in "audiovocal integration", such as longer phonation reaction times to auditory stimuli and less effective pitch tracking. Aims: To study audiovocal integration in adults who stutter…
Descriptors: Auditory Stimuli, Stuttering, Feedback (Response), Control Groups
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Loucks, Torrey; Kraft, Shelly Jo; Choo, Ai Leen; Sharma, Harish; Ambrose, Nicoline G. – Journal of Fluency Disorders, 2011
The purpose of this study was to investigate whether brain activity related to the presence of stuttering can be identified with rapid functional MRI (fMRI) sequences that involved overt and covert speech processing tasks. The long-term goal is to develop sensitive fMRI approaches with developmentally appropriate tasks to identify deviant speech…
Descriptors: Stuttering, Phonemes, Brain, Language Processing