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Spatial disorientation as an early symptom of Parkinson's disease

Department of Neurology, University Hospital Dijkzigt, Rotterdam, The Netherlands.

In 44 consecutive outpatients with idiopathic Parkinson's disease (PD) without levodopa substitution therapy, we tested spatial orientation. Spatial orientation was impaired on the rod orientation test in 43 patients, on the line orientation test in 7 patients, and on the facial recognition test in 17 patients. There was no correlation between severity of spatial disorientation and age, length of illness, verbal WAIS score, or severity of PD. Impairment of spatial orientation is part of PD even in mild cases.

Address correspondence and reprint requests to Dr. Hovestadt, Department of Neurology, University Hospital Dijkzigt, Dr. Molewaterplein 40, 3015 GD, Rotterdam. The Netherlands.

Received March 15, 1986. Accepted for publication in final form June 24, 1986.