Journal
AMERICAN JOURNAL OF PSYCHIATRY
Volume 158, Issue 1, Pages 116-118Publisher
AMER PSYCHIATRIC PRESS, INC
DOI: 10.1176/appi.ajp.158.1.116
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Objective: There is some evidence of thalamic abnormalities in schizophrenia. This study investigated thalamic volumes in patients experiencing their first episode of psychosis and nonpsychotic comparison subjects. Method: Magnetic resonance imaging scans were obtained for 38 patients and 29 comparison subjects. Patients' symptoms were rated by research psychiatrists using the Positive and Negative Syndrome Scale. Results: Thalamic volumes were smaller in patients than in comparison subjects. There were no significant correlations between thalamic volumes and symptom scores. Conclusions: Thalamic abnormalities are present close to the onset of psychosis.
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