Oral-Diadochokinesis Rates across Languages: English and Hebrew Norms. Michal Icht, Boaz M. Ben-David; Journal of Communication Disorders, Available online 23 February 2014. http://dx.doi.org/10.1016/j.jcomdis.2014.02.002
Oral-Diadochokinesis has been used to evaluate the presence and severity of neurological impairments. Inaccurate, inconsistent or an abnormal oral-DDK performance might indicate disorders of the central nervous system or peripheral sensory motor functions.
Spinocerebellar ataxia, Parkinson’s disease and Friedreich’s ataxia (both presenting orofacial motor impairments,were characterized with reduced Oral-Diadochokinesis scores.