Sensorimotor adaptation of voice fundamental frequency in Parkinson's disease.

ABSTRACT:

Objective

This study examined adaptive responses to auditory perturbation of fundamental frequency (fo) in speakers with Parkinson's disease (PD) and control speakers.

Method

Sixteen speakers with PD and nineteen control speakers produced sustained vowels while they received perturbed auditory feedback (i.e., fo shifted upward or downward). Speakers' pitch acuity was quantified using a just-noticeable-difference (JND) paradigm. Twelve listeners provided estimates of the speech intelligibility for speakers with PD.

Results

Fifteen responses from each speaker group for each shift direction were included in analyses. While control speakers generally showed consistent adaptive responses opposing the perturbation, speakers with PD showed no compensation on average, with in

SUBMITTER: Abur D 

PROVIDER: S-EPMC5786318 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature