P. Nopoulos et al., INCIDENCE OF ECTOPIC GRAY-MATTER IN PATIENTS WITH SCHIZOPHRENIA AND HEALTHY CONTROL SUBJECTS STUDIED WITH MRI, The Journal of neuropsychiatry and clinical neurosciences, 10(3), 1998, pp. 351-353
Magnetic resonance imaging scans were visually inspected to investigat
e the incidence of gray matter heterotopia (GMH) in a group of 55 schi
zophrenic patients and a group of 75 control subjects. No GMHs were fo
und in the control subjects. In the patient group, I GMH was found, an
incidence of 1.8%.