Co-occurrence of schizo-obsessive traits and its correlation with altered executive control network functional connectivity.
Eur Arch Psychiatry Clin Neurosci
; 272(2): 301-312, 2022 Mar.
Article
em En
| MEDLINE
| ID: mdl-33389057
ABSTRACT
The prevalence of obsessive-compulsive symptoms (OCS) in schizophrenia patients is as around 30%. Evidence suggested that mild OCS could reduce symptoms of schizophrenia, supporting the presence of compensatory functions. However, severe OCS could aggravate various impairments in schizophrenia patients, supporting the "double jeopardy hypothesis". Patients with schizo-obsessive comorbidity, schizophrenia patients and obsessive-compulsive disorder patients have been found to have similarities in executive dysfunctions and altered resting-state functional connectivity within the executive control network (ECN). Executive functions could be associated with the ECN. However, little is known as to whether such overlap exists in the subclinical populations of individuals with schizo-obsessive traits (SOT), schizotypal individuals and individuals with high levels of obsessive-compulsive symptoms (OCS). In this study, we recruited 30 schizotypal individuals, 25 individuals with OCS, 29 individuals with SOT and 29 controls for a resting-state ECN-related functional connectivity (rsFC) and a go/shift/no-go task. We found that individuals with SOT exhibited increased rsFC within the ECN compared with controls, while schizotypal individuals exhibited the opposite. Individuals with OCS exhibited decreased rsFC within the ECN and between the ECN and the default mode network (DMN), relative to controls. No significant correlational results between altered rsFC related to the ECN with executive function performance were found after corrections for multiple comparisons in three subclinical groups. Our findings showed that individuals with SOT had increased rsFC within the ECN, while schizotypal individuals and individuals with OCS showed the opposite. Our findings provide evidence for possible neural substrates of subclinical comorbidity of OCS and schizotypy.
Palavras-chave
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Esquizofrenia
/
Função Executiva
/
Transtorno Obsessivo-Compulsivo
Tipo de estudo:
Risk_factors_studies
Limite:
Humans
Idioma:
En
Revista:
Eur Arch Psychiatry Clin Neurosci
Assunto da revista:
NEUROLOGIA
/
PSIQUIATRIA
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
China