Cited by 285Schizophrenia research and treatmentMental Health and PsychiatryHallucinations in medical conditions

Hippocampal Volume Reduction in First-Episode and Chronic Schizophrenia: A Review and Meta-Analysis

Adriano, Fulvia, Caltagirone, Carlo, Spalletta, Gianfranco·2012·The Neuroscientist

Abstract

Several magnetic resonance imaging studies have reported hippocampal volume reduction in patients with schizophrenia, but other studies have reported contrasting results. In this review and meta-analysis, the authors aim to clarify whether a reduction in hippocampal volume characterizes patients with schizophrenia by considering illness phase (chronic and first episode) and hippocampus side separately. They made a detailed literature search for studies reporting physical volumetric hippocampal measures of patients with schizophrenia and healthy control (HC) participants and found 44 studies that were eligible for meta-analysis. Individual meta-analyses were also performed on 13 studies of first-episode patients and on 22 studies of chronic patients. The authors also detected any different findings when only males or both males and females were considered. Finally, additional meta-analyses and analyses of variance investigated the role of the factors "illness phase" and "side" on hippocampal volume reduction. Overall, the patient group showed significant bilateral hippocampal volume reduction compared with HC. Interestingly, first-episode and chronic patients showed same-size hippocampal volume reduction. Moreover, the left hippocampus was smaller than the right hippocampus in patients and HC. This review and meta-analysis raises the question about whether hippocampal volume reduction in schizophrenia is of neurodevelopmental origin. Future studies should specifically investigate this issue.

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Crossref · 10.1177/1073858410395147

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Authors
Adriano, F., Caltagirone, C., & Spalletta, G.
Affiliations
  • Fondazione Santa Lucia (IT)
  • University of Rome Tor Vergata (IT)
Venue
The Neuroscientist
Published
2011-04-29
Volume
18
Issue
2
Pages
180-200
ISSN
  • 1073-8584 (ISSN-L)
  • 1089-4098
OpenAlex
W2085230397
Cited by
285
References
110
Citations by year
2026: 6 · 2025: 12 · 2024: 12 · 2023: 11 · 2022: 20 · 2021: 18 · 2020: 25 · 2019: 18 · 2018: 26 · 2017: 26 · 2016: 29 · 2015: 25 · 2014: 23 · 2013: 21 · 2012: 6
FWCI
2.35
Type
journal article
Language
en
Open access
closed
Locations
  • The Neuroscientist (publishedVersion)
  • PubMed (publishedVersion)
  • Cineca Institutional Research Information System (Tor Vergata University) (submittedVersion)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Social Sciences › Arts and Humanities › Philosophy › Mental Health and Psychiatry
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Hallucinations in medical conditions
Keywords
hippocampal volume reduction, schizophrenia, first-episode schizophrenia, chronic schizophrenia, disease stage, hemispheric lateralization, left hippocampus, neurodevelopmental origin, brain volumetry
MeSH terms
Acute Disease, Adult, Analysis of Variance, Chronic Disease, Female, Hippocampus, Humans, Functional Laterality, Magnetic Resonance Imaging, Male, Schizophrenia, Sex Characteristics, Age of Onset, Disease Progression, Young Adult

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