1. Abnormally increased vocal responses to pitch feedback perturbations in patients with cerebellar degeneration
- Author
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Houde, John F, Gill, Jeevit S, Agnew, Zarinah, Kothare, Hardik, Hickok, Gregory, Parrell, Benjamin, Ivry, Richard B, and Nagarajan, Srikantan S
- Subjects
Biological Psychology ,Biomedical and Clinical Sciences ,Psychology ,Clinical Research ,Behavioral and Social Science ,Acoustic Stimulation ,Adult ,Feedback ,Feedback ,Sensory ,Female ,Humans ,Male ,Middle Aged ,Pitch Perception ,Speech ,Speech Perception ,Voice ,Acoustics - Abstract
Cerebellar degeneration (CD) has deleterious effects on speech motor behavior. Recently, a dissociation between feedback and feedforward control of speaking was observed in CD: Whereas CD patients exhibited reduced adaptation across trials to consistent formant feedback alterations, they showed enhanced within-trial compensation for unpredictable formant feedback perturbations. In this study, it was found that CD patients exhibit abnormally increased within-trial vocal compensation responses to unpredictable pitch feedback perturbations. Taken together with recent findings, the results indicate that CD is associated with a general hypersensitivity to auditory feedback during speaking.
- Published
- 2019