Upper Left image shows rCBF distribution in a group (n=24) of
     Normal controls during REST (1) and FAS activation (2)

    Upper Right image shows rCBF distribution in the same group during
    REST and FAS activation 2 hours after administration of 
    Risperidone (1mg)  

    Lower Left image shows the activation response to Risperidone 1 mg.

    Image courtesy: Siegbert Warkentin, Ass.Prof., Director of
    CBF-laboratory, Neuropsychiatric clinic and Dept. of Clinical
    Physiology,University hospital MAS, Malmö, Sweden