ArticlePsychiatry investigation2009
Comparative Analysis of Cognitive Function in Schizophrenia with and without Obsessive Compulsive Disorder.
Article in Psychiatry investigation, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.
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Who cites it
13 citing papers in PubMed, 1 synthesis or guideline pooled it, 48 citations in OpenAlex.
- Meta-analysis of cognitive functioning in patients with psychotic disorders and obsessive-compulsive symptoms.European archives of psychiatry and clinical neuroscience · 2021Pooled it
- Characterizing executive dysfunctions in patients with schizo-obsessive comorbidity: comparing schizophrenia with obsessive-compulsive disorder.Psychological medicine · 2026Article
- IQ and socio-occupational functioning in relation to obsessive-compulsive symptoms severity in a clinical sample of adolescents.Scientific reports · 2025Article
- Long-Term Outcomes and Predictors of Childhood-Onset Schizophrenia: A Naturalistic Study of 6-year Follow-Up in China.Frontiers in psychiatry · 2021Article
- Identifying Schizo-Obsessive Comorbidity by Tract-Based Spatial Statistics and Probabilistic Tractography.Schizophrenia bulletin · 2020Article
- Schizophrenia with and without obsessive-compulsive symptoms: a comparative analysis of performance on trail making test and disability on WHODAS.General psychiatry · 2020Article
- Prevalence and clinical correlations of obsessive-compulsive symptoms in schizophrenia.Asian journal of psychiatry · 2019Observational
- Evidence for inhibitory deficits in the prefrontal cortex in schizophrenia.Brain : a journal of neurology · 2015Article
- Comorbid Obsessive-Compulsive Symptoms in Schizophrenia: Insight into Pathomechanisms Facilitates Treatment.Advances in medicine · 2014Review
- Does co-morbid obsessive-compulsive disorder modify the abnormal language processing in schizophrenia patients? An FMRI study.Frontiers in human neuroscience · 2014Article
- Stable cognitive deficits in schizophrenia patients with comorbid obsessive-compulsive symptoms: a 12-month longitudinal study.Schizophrenia bulletin · 2013Article
- Comorbid obsessive-compulsive symptoms in schizophrenia: contributions of pharmacological and genetic factors.Frontiers in pharmacology · 2013Article
- Comparison of putative intermediate phenotypes in schizophrenia patients with and without obsessive-compulsive disorder: examining evidence for the schizo-obsessive subtype.Schizophrenia research · 2012Article
Corrections and comments
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Authors and funding
9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveWe investigated the neurocognitive deficits in schizophrenic patients with and without obsessive-compulsive disorder (OCD).
methodsWe grouped 27 patients as either obsessive-compulsive or non-obsessive-compulsive based on the presence of OCD. The two groups completed the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS), Positive and Negative Symptom Scale (PANSS), and Hamilton Depression Scale. The intelligence quotient (IQ) was tested using the Korean Wechsler Adult Intelligence Scale. The memory quotient (MQ) was tested using the Korean-Auditory Verbal Learning and Korean-Complex Figure Test. The executive intelligence quotient (EIQ) was determined using the Kims executive intelligence test (EXIT).
resultsTen of the 27 patients had OCD. The compulsion score of Y-BOCS was positively correlated with positive symptoms, negative symptoms, and the total scores of PANSS. The OCD-schizophrenia patients had higher IQs. No difference was found in MQ. Although the EIQ did not differ between the two groups, the OCD-schizophrenia patients performed better at the Stroop-interference and verbal fluency tests, which was highly dependent on executive function.
conclusionOur findings suggest that OCD may have a protective effect on some cognitive function, at least in relatively early stage of illness. Moreover, based on clinical, neurocognitive features, schizophrenia with OCD could be considered as a distinct subtype of schizophrenia.
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