Cortical volume abnormalities in schizophrenia : Correlations with symptoms and cognitive impairment

Copyright © 2024 Elsevier B.V. All rights reserved..

BACKGROUND: Schizophrenic symptoms are known to segregate into reality distortion, negative and disorganization syndromes, but the correlates of these syndromes with regional brain structural change are not well established. Cognitive impairment is a further clinical feature of schizophrenia, whose brain structural correlates are the subject of conflicting findings.

METHODS: 165 patients with schizophrenia were rated for symptoms using the PANSS, and cognitive impairment was indexed by estimated premorbid-current IQ discrepancy. Cortical volume was measured using surface-based morphometry in the patients and in 50 healthy controls. Correlations between clinical and cognitive measures and cortical volume were examined using whole-brain FreeSurfer tools.

RESULTS: No clusters of volume reduction were seen associated with reality distortion or disorganization. Negative symptom scores showed a significant inverse correlation with volume in a small cluster in the left medial orbitofrontal gyrus. Larger estimated premorbid-current IQ discrepancies were associated with clusters of reduced cortical volume in the left precentral gyrus and the left temporal lobe. The cluster of association with negative symptoms disappeared when estimated premorbid-current IQ discrepancy was controlled for.

CONCLUSIONS: This study does not provide support for an association between brain structural abnormality and reality distortion or disorganization syndromes in schizophrenia. The cluster of volume reduction found in the left medial orbitofrontal cortex correlated with negative symptoms may have reflected the association between this class of symptoms and cognitive impairment. The study adds to existing findings of an association between cognitive impairment and brain structural changes in the disorder.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:266

Enthalten in:

Schizophrenia research - 266(2024) vom: 15. März, Seite 50-57

Sprache:

Englisch

Beteiligte Personen:

García-León, María Ángeles [VerfasserIn]
Fuentes-Claramonte, Paola [VerfasserIn]
Soler-Vidal, Joan [VerfasserIn]
Ramiro-Sousa, Nuria [VerfasserIn]
Salgado-Pineda, Pilar [VerfasserIn]
Salavert, Josep [VerfasserIn]
Torres, Llanos [VerfasserIn]
Guerrero-Pedraza, Amalia [VerfasserIn]
Tristany, Josep [VerfasserIn]
Karuk, Andriana [VerfasserIn]
Barbosa, Lucila [VerfasserIn]
Del Olmo-Encabo, Pablo [VerfasserIn]
Canut-Altemir, Pedro [VerfasserIn]
Munuera, Josep [VerfasserIn]
Sarró, Salvador [VerfasserIn]
Salvador, Raymond [VerfasserIn]
McKenna, Peter J [VerfasserIn]
Pomarol-Clotet, Edith [VerfasserIn]

Links:

Volltext

Themen:

Brain morphometry
Cognitive decline
Disorganization
Journal Article
Negative syndrome
Positive syndrome
Schizophrenia

Anmerkungen:

Date Completed 20.03.2024

Date Revised 20.03.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.schres.2024.01.031

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM368587703