Striatal toe refers to the tonic extension of the hallux which is seen in dystonic syndromes, and as a feature of extrapyramidal disorders.
Striatal toe may be confused with Babinski’s sign (extensor plantar response), the principal difference being that the latter is elicited by stimulation whereas the former is a tonic response.
Winkler AS, Reuter I, Harwood G, Chaudhuri KR. The frequency and significance of "striatal toe" in parkinsonism. Parkinsonism and Related Disorders 2002; 9: 97-101