Seeing where your hands are | Nature

ABSTRACT Some patients with brain damage fail to identify a sensory stimulus presented on the opposite side to their lesion (contralesional) when a competing stimulus is presented on the

same side (ipsilesional)1. This phenomenon has become known as extinction. It is commonly studied using a single sense such as sight or touch (unimodal extinction)2. We have studied a

75-year-old right-handed man (patient GS) who has severe left tactile extinction resulting from damage to the right frontotemporal cortex caused by a stroke. We found that an ipsilesional

visual stimulus could induce extinction of a contralesional tactile stimulus (cross-modal extinction). We also found that the visual stimulus operates in a reference system attached to the

hand, and not in egocentric coordinates (that is retinal, head or trunk-centred coordinates). Access through your institution Buy or subscribe This is a preview of subscription content,

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OPTIONS: * Log in * Learn about institutional subscriptions * Read our FAQs * Contact customer support REFERENCES * Critchley, M. _The Parietal Lobes_ (Edward Arnold, London, 1953). *

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* Làdavas, E., Berti, A., Ruozzi, E. & Barboni, F. _Exp. Brain Res._ (in the press). * Inhoff, A. W., Rafal, R. D. & Posner, M. J. _J. Neurol. Neurosurg. Psychiat._ 55, 36–39

(1992). Google Scholar  Download references AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * Department of Psychology, University of Bologna, Viale Berti Pichat 5, 40127, Bologna, Italy

Giuseppe di Pellegrino & Elisabetta Làdavas * Ospedale I.N.R.C.A. ‘Fraticini’, Via Massoni 21, 50100, Firenze, Italy Alessandro Farné Authors * Giuseppe di Pellegrino View author

publications You can also search for this author inPubMed Google Scholar * Elisabetta Làdavas View author publications You can also search for this author inPubMed Google Scholar *

Alessandro Farné View author publications You can also search for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE di

Pellegrino, G., Làdavas, E. & Farné, A. Seeing where your hands are. _Nature_ 388, 730 (1997). https://doi.org/10.1038/41921 Download citation * Issue Date: 21 August 1997 * DOI:

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