Association of neurocognitive deficits and insight in schizophrenia.
- Authors
- Grover, Sandeep; Sahoo, Swapnajeet; Nehra, Ritu; Chakrabarti, Subho; Avasthi, Ajit
- Year
- 2018
- Journal
- Asian journal of psychiatry
- PMID
- 30064045
- DOI
- 10.1016/j.ajp.2018.07.001
AIM: To evaluate the relationship between neurocognitive deficits and insight (clinical & cognitive) among patients with schizophrenia in clinical remission. METHODOLOGY: 60 patients with schizophrenia (diagnosed as per the DSM-IV criteria) in clinical remission were assessed on Beck Cognitive Insight scale (BCIS), Positive and Negative symptom scale (PANSS) and neurocognitive battery (Trail A and B, Stroop Test, Controlled Oral Words Association (COWA) and Tower of London (TOL). RESULTS: Lower processing speed, low cognitive flexibility and poor executive functions as assessed by Trail A, Trail B and TOL respectively and higher verbal fluency (COWA) were associated with poor cognitive insight in the self-certainty domain. Poor executive functioning (3 moves problem of TOL) was associated with lower cognitive insight in the domain of self-reflectiveness. Clinical insight as assessed by item number 12 of general psychopathology subscale of PANSS did not have any association with any of the neurocognitive domains except for few subsets of executive functions as assessed by TOL. There was no correlation between clinical insight and cognitive insight. However, many of these correlations were weak and could be due to Type-1 error as significance of correlation was fixed at two tailed 0.05 level. Multiple regression analysis demonstrated cognitive flexibility as assessed by Trail B test and executive functions (3 moves and 5 moves problems of TOL) to be the significant predictors of self-certainty and self- reflectiveness domains of the cognitive insight. CONCLUSIONS: The present study suggests that poor cognitive flexibility and executive dysfunction are associated with poor cognitive insight but the impact of poor neurocognitions on the clinical insight is not very significant.
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