The type of speech impairment most commonly reported in hereditary ataxias is dysarthria.
[ncbi.nlm.nih.gov]
Clinical manifestations include GAIT ATAXIA, pes cavus, speech impairment, lateral curvature of spine, rhythmic head tremor, kyphoscoliosis, congestive heart failure (secondary
[hon.ch]
Accompanied by ataxia, speech impairment, lateral curvature of the spinal column, and peculiar swaying and irregular movements, with paralysis of the muscles, especially of
[whonamedit.com]