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Dysynchiria: Watching the mirror image of the unaffected limb elicits pain on the affected side

From the Division of Physiotherapy, The University of Queensland and Department of Physiotherapy, Royal Brisbane and Women's Hospital, Brisbane (N.E. Acerra); and the School of Physiotherapy, The University of Sydney, Australia (N.E. Acerra and Dr. Moseley).

Address correspondence and reprint requests to Dr. G. Lorimer Moseley, School of Physiotherapy, The University of Sydney, PO Box 170, Lidcombe 1825, Australia; e-mail: l.moseley{at}fhs.usyd.edu.au

People with complex regional pain syndrome type 1 (CRPS1) watched a reflected image of their unaffected limb being touched and felt pain or paresthesia at the corresponding site on the affected limb. The authors suggest that allodynia and paresthesia can be mediated by the brain and that dysynchiria has implications for the understanding and management of CRPS1.

Editorial, see page 666

See also pages 748 and 773

G.L.M. is supported by a Clinical Research Fellowship from the National Health and Medical Research Council of Australia. This study was supported by a Clinical Research Grant from the Neuro-orthopaedic Institute of Australasia.

*Both authors contributed to the conceptualization, data collection, analysis, and write-up of this study.

Disclosure: The authors report no conflicts of interest.

Received December 16, 2004. Accepted in final form July 13, 2005.

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