Video 2.

Progressive supranuclear palsy (PSP) with cerebellar signs. Segment 1 shows an example of PSP‐PFG. This 70‐year‐old Indian male who presented with gait slowing which progressed to freezing within a year, developed cerebellar signs later in the disease course. The video taken 7 years after onset shows gait freezing at initiation, during straight walking and turning, which could be overcome with visual cues. Examination of the extraocular movements showed clear vertical saccadic slowing and gaze‐evoked horizontal nystagmus. Segment 2 shows a 63‐year‐old Gujarati female with PSP‐RS who had cerebellar signs at presentation. She initially experienced dysarthria, then rapidly developed recurrent falls and blurred vision. The video taken 2 years after onset shows typical PSP features of square‐wave jerks, vertical gaze palsy, eyelid opening apraxia, hypomimia with frontalis overactivity, and dysarthria; but in addition, she had bilateral upper limb dysmetria, worse on the right.