Afferent (seonsory) ataxia is caused by lackof proprioceptive feedback during gait and stance. It can be caused by lesions to the peripheral nerves, the dorsal root ganglia, or the spinal cord. It can be distinguished from cerebellar ataxia by (1) heavy dependence of the affected individual on visual guidance; (2) a minor degree of oculomotor deficits; and (3) the absence of dysarthria. Afferent ataxia may be associated with impaired tendon reflexes and sensory deficits.