Abnormally increased vocal responses to pitch feedback perturbations in patients with cerebellar degeneration | Zendy

John F. Houde | Zendy; Jeevit S. Gill | Zendy; Zarinah K. Agnew | Zendy; Hardik Kothare | Zendy; Gregory Hickok | Zendy; Benjamin Parrell | Zendy; Richard B. Ivry | Zendy; Srikantan S. Nagarajan | Zendy

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Abnormally increased vocal responses to pitch feedback perturbations in patients with cerebellar degeneration

Author(s) -

John F. Houde,

Jeevit S. Gill,

Zarinah K. Agnew,

Hardik Kothare,

Gregory Hickok,

Benjamin Parrell,

Richard B. Ivry,

Srikantan S. Nagarajan

Publication year - 2019

Publication title -

the journal of the acoustical society of america

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.619

H-Index - 187

eISSN - 1520-8524

pISSN - 0001-4966

DOI - 10.1121/1.5100910

Subject(s) - auditory feedback , formant , feed forward , audiology , dissociation (chemistry) , psychology , neuroscience , medicine , speech recognition , chemistry , computer science , vowel , control engineering , engineering

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.

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