This article includes supplementary video clips, available online at .

mds21939.mpg13969KSegment 1. Complex self-directed hand stereotypies and complex hand stereotypies with separated hands. Segment 2. This video illustrates the manual abilities of the patient. We also can observe complex hand stereotypies with only one hand against her mouth or dolls mouths. She was able to manipulate objects but this was constantly interrupted by compulsive hand stereotypies.

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