A patient with Parkinson's disease treated by subthalamic deep brain stimulation may lose the ability to swim or perform other complex motor behaviors.
Patient selection: Parkinson's disease treated with subthalamic deep brain stimulation
Features:
(1) history of the ability to perform a complex motor behavior
(2) presence of deep brain stimulation with successful control of motor functioning
(3) inability to perform complex motor behavior with stimulator on
(4) ability to perform motor behavior with stimulator off
(5) no other explanation for findings
A problem can arise if the person does not expect the loss of ability and is in a situation where that skill is essential. A swimmer who jumps into deep water alone may be at risk for drowning.
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