Progressive supranuclear palsy (PSP) is characterized by progressive postural instability with falls, pseudobulbar palsy, axial parkinsonism, supranuclear vertical gaze palsy, executive ...

Clinically, it is characterized by disorders of memory, cognition, and mood changes together with pyramidal and extrapyramidal abnormalities. Pseudobulbar palsy (dysarthria and dysphagia) is frequent.