They consisted of jaw-opening dystonia with almost rhythmic tongue protrusion, consistent with the dystonic tremor of the tongue (see Video 2, part IIIb).
[movementdisorders.org]
A heterogeneous degeneration involving the brain stem, basal ganglia and cerebellum with vertical gaze and pseudobulbar palsy, nuchal dystonia and dementia.
[books.google.de]
TESTING 35 Clinical sign 1° Testing 2° Testing Cerebellar ataxia, Pure 6, 5 11, 14, 15, 16, 22 Spasticity 3 1, 7 Peripheral neuropathy 3, 4, 18, 25 1 Cortical disorders Dementia
[neuromuscular.wustl.edu]