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NEUROLOGY 2004;62:473-475
© 2004 American Academy of Neurology
Brief Communications

Vestibular processing in human paramedian precuneus as shown by electrical cortical stimulation

G. Wiest, MD, F. Zimprich, MD PhD, D. Prayer, MD, T. Czech, MD, W. Serles, MD and C. Baumgartner, MD Dipl Ing

From the Departments of Neurology (Drs. Wiest, Zimprich, Serles, and Baumgartner), Radiology (Dr. Prayer), and Neurosurgery (Dr. Czech), University of Vienna, Austria.

Address correspondence and reprint requests to Dr. Gerald Wiest, Department of Neurology, University of Vienna, Währingergürtel 18-20, 1090 Vienna, Austria; e-mail: gerald.wiest{at}univie.ac.at

The authors describe a 16-year-old patient with recurrent episodes of epileptic linear self-motion perception and occasional body tilts. Intracranial seizure monitoring located the seizure onset, caused by a circumscribed ependymoma, in the right paramedian precuneus. Electrical cortical stimulation of this area could reproduce the same vestibular sensations, which ceased after lesionectomy. The findings implicate the paramedian area of the precuneus in the processing of static and dynamic vestibular, probably otolithic, information.

Received May 15, 2003. Accepted in final form October 6, 2003.




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