. Author manuscript; available in PMC: 2016 Sep 1.

Published in final edited form as: IEEE/ACM Trans Audio Speech Lang Process. 2015 May 15;23(9):1421–1430. doi: 10.1109/TASLP.2015.2434213

TABLE IV.

Differences in perceptual symptoms present in different dysarthria subtypes

Ataxic	Scanning speech; imprecise articulation with irregular articulatory breakdown; irregular pitch and loudness changes
ALS	Prolonged syllables; slow articulation rate, imprecise articulation; hypernasality; strained strangled vocal quality
HD	Irregular pitch and loudness changes; irregular rate changes across syllable strings
PD	Rapid articulation rate; rushes of speech; imprecise articulation; monopitch; reduced loudness; breathy voice