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Am J Psychiatry 1995; 152:704-714
Copyright © 1995 by American Psychiatric Association
Effects of diagnosis, laterality, and gender on brain morphology in schizophrenia
M Flaum, VW Swayze 2nd, DS O'Leary, WT Yuh, JC Ehrhardt, SV Arndt and NC Andreasen
Department of Psychiatry Administration, University of Iowa Hospitals and Clinics, Iowa City 52242, USA.
OBJECTIVE: Structural neuroimaging and neuropathological studies have
demonstrated a variety of aspects of brain morphology that appear to
distinguish schizophrenic patients from comparison subjects (diagnostic
effects), a predominance of left-sided pathology (laterality effects), and
a greater likelihood of brain abnormality among males (gender effects).
However, findings have been inconsistent across studies, perhaps reflecting
limited power due to small study group sizes. The goal of this study was to
examine diagnostic, laterality, and gender effects of brain morphology as
assessed by magnetic resonance imaging in a large, carefully evaluated
group of schizophrenic and comparison subjects. METHOD: One hundred two
patients with schizophrenia (DSM-III- R) (70 men and 32 women) and 87
normal comparison subjects, chosen to be equivalent to the patients in
terms of familial socioeconomic background, underwent magnetic resonance
imaging with a 1.5-tesla scanner. All regions of interest were outlined
manually by an experienced technician on all slices in which they were
visualized. Region of interest volumes were compared across groups, and
age, sex, and stature were controlled. RESULTS: Schizophrenic patients were
found to have larger lateral and third ventricles and smaller thalamic,
hippocampal, and superior temporal volumes than comparison subjects. No
significant differences were demonstrated for intracranial, cerebral,
cerebellar, temporal lobe, caudate nuclei, or temporal horn volumes. There
were no significant Laterality by Diagnosis effects and no significant
Gender by Diagnosis effects for any of the regions of interest.
CONCLUSIONS: Many, but not all, of the hypotheses informed by earlier
studies regarding diagnostic effects were confirmed, while hypotheses
regarding gender and laterality interactions with diagnosis were not
supported.
This article has been cited by other articles:

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W. G. Staal, H. E. H. Pol, H. Schnack, A. C. van der Schot, and R. S. Kahn
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[Full Text]
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M. S. Keshavan, D. Rosenberg, J. A. Sweeney, and J. W. Pettegrew
Decreased Caudate Volume in Neuroleptic-Naive Psychotic Patients
Am J Psychiatry,
June 1, 1998;
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[Abstract]
[Full Text]
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L. K. Jacobsen, J. N. Giedd, F. X. Castellanos, A. C. Vaituzis, S. D. Hamburger, S. Kumra, M. C. Lenane, and J. L. Rapoport
Progressive Reduction of Temporal Lobe Structures in Childhood-Onset Schizophrenia
Am J Psychiatry,
May 1, 1998;
155(5):
678 - 685.
[Abstract]
[Full Text]
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M. D. Nelson, A. J. Saykin, L. A. Flashman, and H. J. Riordan
Hippocampal Volume Reduction in Schizophrenia as Assessed by Magnetic Resonance Imaging: A Meta-analytic Study
Arch Gen Psychiatry,
May 1, 1998;
55(5):
433 - 440.
[Abstract]
[Full Text]
[PDF]
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L. Shihabuddin, M. S. Buchsbaum, E. A. Hazlett, M. M. Haznedar, P. D. Harvey, A. Newman, D. B. Schnur, J. Spiegel-Cohen, T. Wei, J. Machac, et al.
Dorsal Striatal Size, Shape, and Metabolic Rate in Never-Medicated and Previously Medicated Schizophrenics Performing a Verbal Learning Task
Arch Gen Psychiatry,
March 1, 1998;
55(3):
235 - 243.
[Abstract]
[Full Text]
[PDF]
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P. Nopoulos, M. Flaum, and N. C. Andreasen
Sex Differences in Brain Morphology in Schizophrenia
Am J Psychiatry,
December 1, 1997;
154(12):
1648 - 1654.
[Abstract]
[Full Text]
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L. K. Jacobsen, J. N. Giedd, P. C. Berquin, A. L. Krain, S. D. Hamburger, S. Kumra, and J. L. Rapoport
Quantitative Morphology of the Cerebellum and Fourth Ventricle in Childhood-Onset Schizophrenia
Am J Psychiatry,
December 1, 1997;
154(12):
1663 - 1669.
[Abstract]
[Full Text]
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G. J. Popken, W. E. Bunney Jr., S. G. Potkin, and E. G. Jones
Subnucleus-specific loss of neurons in medial thalamus of schizophrenics
PNAS,
August 1, 2000;
97(16):
9276 - 9280.
[Abstract]
[Full Text]
[PDF]
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