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Title: Global brain asymmetry is increased in schizophrenia and related to avolition

Journal Article · · Acta Psychiatrica Scandinavica
DOI:https://doi.org/10.1111/acps.12723· OSTI ID:1401287
ORCiD logo [1];  [1];  [2];  [1];  [3];  [4];  [4]; ORCiD logo [4]
  1. Parc Sanitari Sant Joan de Déu Sant Boi de Llobregat Barcelona Spain
  2. School of Life &, Health Sciences Aston University Birmingham UK
  3. Parc Sanitari Sant Joan de Déu Sant Boi de Llobregat Barcelona Spain, Facultat de Medicina Universitat de Barcelona Barcelona Spain, Section of Clinical Psychology Department of Education, Psychology, and Philosophy University of Cagliari Cagliari Italy, Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM) Madrid Spain
  4. Parc Sanitari Sant Joan de Déu Sant Boi de Llobregat Barcelona Spain, Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM) Madrid Spain

Objective Schizophrenia may be the result of a failure of the normal lateralization process of the brain. However, whole‐brain asymmetry has not been assessed up to date. Here, we propose a novel measure of global brain asymmetry based on the Dice coefficient to quantify similarity between brain hemispheres. Method Global gray and white matter asymmetry was calculated from high‐resolution T1 structural images acquired from 24 patients with schizophrenia and 26 healthy controls, age‐ and sex‐matched. Some of the analyses were replicated in a much larger sample ( n = 759) obtained from open‐access online databases. Results Patients with schizophrenia had more global gray matter asymmetry than controls. Additionally, increased gray matter asymmetry was associated with avolition, whereas the inverse relationship was found for anxiety at a trend level. These analyses were replicated in a larger sample and confirmed previous results. Conclusion Our findings suggest that global gray matter asymmetry is related to the concept of developmental stability and is a useful indicator of perturbations during neurodevelopment.

Sponsoring Organization:
USDOE
Grant/Contract Number:
DE‐FG02‐08ER64581
OSTI ID:
1401287
Journal Information:
Acta Psychiatrica Scandinavica, Journal Name: Acta Psychiatrica Scandinavica Vol. 135 Journal Issue: 5; ISSN 0001-690X
Publisher:
Wiley-BlackwellCopyright Statement
Country of Publication:
Denmark
Language:
English
Citation Metrics:
Cited by: 11 works
Citation information provided by
Web of Science

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