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Neurology 2002;59:749-752
© 2002 American Academy of Neurology
Brief Communications

Reemergence of activation with poststroke somatosensory recovery: A serial fMRI case study

L. M. Carey, PhD, D. F. Abbott, PhD, A. Puce, PhD, G. D. Jackson, MD, A. Syngeniotis, DipAppSc and G. A. Donnan, MD

From the National Stroke Research Institute (Drs. Carey and Donnan) and Brain Research Institute (Drs. Abbott, Puce, Jackson, and Syngeniotis), Austin and Repatriation Medical Centre, Heidelberg West; LaTrobe University (Dr. Carey), Bundoora; and Brain Sciences Institute (Dr. Puce), Swinburne University of Technology, Hawthorn, Victoria, Australia.

Address correspondence and reprint requests to Dr. Leeanne M. Carey, National Stroke Research Institute, Level 1, Neurosciences Building, Austin and Repatriation Medical Centre (A&RMC), Banksia Street, Heidelberg West, 3081, Australia; e-mail: L.Carey{at}austin.unimelb.edu.au

The authors demonstrate the potential for poststroke return of activation in regions normally involved in touch discrimination in a serial, whole-brain fMRI study of a patient with marked sensory loss followed by good recovery. A return of activation in ipsilesional primary and bilateral secondary somatosensory cortices was observed at 3 months after stroke and was maintained at 6 months, indicating a reemergence of activation after the interval of somatosensory recovery. There was little evidence of neural plastic changes early after stroke (2 weeks), when sensory loss was severe.




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