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Nineteen of 50 Parkinson patients had sensory complaints of numbness, coldness, burning, or pain. There was no objective sensory loss, and sensory symptoms did not correlate with specific motor or autonomic signs. Symptoms were frequently restricted to the hemiparkinson side and sometimes preceded motor symptoms. Nerve conduction and somatosensory evoked potential studies were normal.
William C. Koller (Sun,) studied this question.