Localisation of voxels in which cerebral glucose metabolism was impaired during vegetative state (in yellow) and after recovery to consciousness (in blue), compared with the control population. SPM{Z} threshold was set at voxel level corrected p<0.05 and projected on the patient's coregistered MRI, normalised to the stereotaxic space of Talairach.
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Isaace E Silverman (1999) studied this question.
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