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 Volume 60, Number 11, June 10, 2003
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Neurology 2003;60:1829-1831
© 2003 American Academy of Neurology
Brief Communications

Prism adaptation can improve contralesional tactile perception in neglect

A. Maravita, MD PhD, J. McNeil, PhD, P. Malhotra, MRCP, R. Greenwood, FRCP, M. Husain, DPhil FRCP and J. Driver, DPhil

From the Institute of Cognitive Neuroscience (Drs. Maravita, Malhotra, Husain, and Driver), University College, London, UK; Dipartimento di Psicologia (Dr. Maravita), Universitá di Milano–Bicocca, Italy; Imperial College School of Medicine (Drs. Husain and Malhotra), London, UK; Rehabilitation Unit (Drs. McNeil and Greenwood), Homerton Hospital, London, UK; and National Hospital for Neurology and Neurosurgery (Dr. Greenwood), London, UK.

Address correspondence and reprint requests to Dr. Angelo Maravita, Dipartimento di Psicologia, Universitá di Milano–Bicocca, Piazza dell’Ateneo Nuovo, 1, 20126, Milano, Italy.

The authors show that prismatic adaptation can reduce tactile inattention in stroke patients with unilateral neglect. Four patients with visuospatial neglect and tactile extinction underwent 10-minute application of 20° right-shifting prismatic lenses during pointing. This improved contralesional tactile perception in all patients, even for a task requiring no exploration or spatial motor responses. This finding suggests a potential role for prismatic adaptation in the rehabilitation of multiple sensory modalities in patients with neglect.




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