We have updated our privacy policy. If you have any question, contact us at privacy@scicrunch.org. Dismiss and don't show again

Searching across hundreds of databases

Our searching services are busy right now. Your search will reload in five seconds.

Forgot Password

If you have forgotten your password you can enter your email here and get a temporary password sent to your email.

Differences and similarities in insular and temporal pole MRI gray matter volume abnormalities in first-episode schizophrenia and affective psychosis.

CONTEXT: Whether psychoses associated with schizophrenia and affective disorder represent manifestations of different disorders or the same disorder is an important but unresolved question in psychiatry. Results of previous volumetric magnetic resonance imaging investigations indicate that gray matter volume reductions in neocortical regions may be specific to schizophrenia. OBJECTIVE: To simultaneously evaluate multiple olfactocentric paralimbic regions, which play crucial roles in human emotion and motivation, in first-episode patients with schizophrenia and affective psychosis. DESIGN: A cross-sectional study using high-spatial resolution magnetic resonance imaging in patients with schizophrenia and affective psychosis at their first hospitalization. SETTING: Inpatient units at a private psychiatric hospital. PARTICIPANTS: Fifty-three first-episode patients, 27 with schizophrenia and 26 with affective (mainly manic) psychosis, and 29 control subjects. MAIN OUTCOME MEASURES: Using high-spatial resolution magnetic resonance imaging, the gray matter volumes of 2 olfactocentric paralimbic regions of interest, the insular cortex and the temporal pole, were evaluated. RESULTS: A bilateral volume reduction in insular cortex gray matter was specific to first-episode patients with schizophrenia. In contrast, both first-episode psychosis groups showed a volume reduction in left temporal pole gray matter and an absence of normal left-greater-than-right asymmetry. Region of interest correlations showed that only patients with schizophrenia lacked a positive correlation between left temporal pole and left anterior amygdala-hippocampal complex gray matter volumes, whereas both psychosis groups were similar in lacking normal positive correlations between left temporal pole and left anterior superior temporal gyrus gray matter volumes. CONCLUSIONS: These partially different and partially similar patterns of structural abnormalities in olfactocentric paralimbic regions and their associated abnormalities in other temporolimbic regions may be important factors in the differential and common manifestations of the 2 psychoses.

Pubmed ID: 14609882 RIS Download

Mesh terms: Acute Disease | Adolescent | Adult | Atrophy | Bipolar Disorder | Brief Psychiatric Rating Scale | Cerebral Cortex | Diagnosis, Differential | Dominance, Cerebral | Female | Humans | Image Enhancement | Image Processing, Computer-Assisted | Imaging, Three-Dimensional | Limbic System | Magnetic Resonance Imaging | Male | Mathematical Computing | Mental Status Schedule | Nerve Net | Olfactory Pathways | Psychotic Disorders | Schizophrenia | Schizophrenic Psychology | Temporal Lobe | Wechsler Scales

Research resources used in this publication

None found

Research tools detected in this publication

None found

Data used in this publication

None found

Associated grants

  • Agency: NIMH NIH HHS, Id: R01 MH040799
  • Agency: NIMH NIH HHS, Id: R01 MH050740
  • Agency: NCRR NIH HHS, Id: R01 RR011747
  • Agency: NIMH NIH HHS, Id: R01 MH 50747
  • Agency: NIMH NIH HHS, Id: K02 MH001110
  • Agency: NIMH NIH HHS, Id: K02 MH 01110
  • Agency: NCRR NIH HHS, Id: P41 RR013218
  • Agency: NIMH NIH HHS, Id: R01 MH 40799
  • Agency: OCPHP CDC HHS, Id: P41 PR 13218
  • Agency: NCRR NIH HHS, Id: R01 RR 11747

Publication data is provided by the National Library of Medicine ® and PubMed ®. Data is retrieved from PubMed ® on a weekly schedule. For terms and conditions see the National Library of Medicine Terms and Conditions.

We have not found any resources mentioned in this publication.