The present study investigated the role of cerebellum in voicing perception in patients with cerebellar pathologies. Ten patients with cerebellar dysarthrias in the age range of 24-69 years participated in the study. The perception of voicing for VOT and closure duration continuum was investigated. VOT continuum consisted of 223 pairs of synthetic stimuli and closure duration continuum consisted of 150 pairs of synthetic stimuli. The patients were to respond to the stimuli on a binary forced-choice with identifying the pairs in the stimulus as "same" or "different". The results indicated that the shift in the percept of voicing was delayed in patients with cerebellar pathologies for VOT and no shift in percept was noticed for closure duration. The results indicate that the perception of linguistically relevant intervals is impaired in individuals with cerebellar pathologies. The findings support the hypothesis that the cerebellum represents an "internal clock", a pre-requisite for temporal computation in the perceptual domain.
Cite as: Savithri, S.R., Rohini, H. (2003) Voicing perception in patients with cerebellar pathologies. Proc. Workshop on Spoken Language Processing, 72-77
@inproceedings{savithri03_wslp,
author={S. R. Savithri and H. Rohini},
title={{Voicing perception in patients with cerebellar pathologies}},
year=2003,
booktitle={Proc. Workshop on Spoken Language Processing},
pages={72--77}
}