Neurology. 2004 Sep 14;63(5):916-8.

Cerebral processing in the minimally conscious state.

Laureys S, Perrin F, Faymonville ME, Schnakers C, Boly M, Bartsch V, Majerus S, Moonen G, Maquet P.

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Cyclotron Research Center and Department of Neurology, University of Liège, Sart Tilman B30, 4000 Liège, Belgium. steven.laureys@ulg.ac.be

Abstract

We studied a patient in a minimally conscious state using PET and cognitive evoked potentials. Cerebral metabolism was below half of normal values. Auditory stimuli with emotional valence (infant cries and the patient's own name) induced a much more widespread activation than did meaningless noise; the activation pattern was comparable with that previously obtained in controls. Cognitive potentials showed preserved P300 responses to the patient's own name.

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