Browsing by Author "Kostyuk, Georgiy"

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    Contrasting metacognitive profiles and their association with negative symptoms in groups with schizophrenia, early psychosis and depression in a Russian sample
    (Elsevier, 2020-09) Lysaker, Paul H.; Chernov, Nikita; Moiseeva, Tatyana; Sozinova, Marta; Dmitryeva, Nadezhda; Alyoshin, Vitaliy; Faith, Laura A.; Karpenko, Olga; Kostyuk, Georgiy; Psychiatry, School of Medicine
    Research has suggested that negative symptoms in psychotic disorders may be in part fueled by deficits in metacognition or the ability to form integrated ideas about oneself and others. One limitation of this work is that it has largely come from North America and Western Europe. To further the literature, we assessed symptoms using the Positive and Negative Syndrome Scale and Metacognition using the Metacognitive Assessment Scale - Abbreviated in a sample of outpatients with prolonged schizophrenia (n = 41), early episode psychosis (n = 37) and major depression (n = 30) gathered in Moscow, Russia. Verbal memory was assessed for use as a potential covariate. ANOVA revealed the two groups with psychosis had significantly poorer metacognitive function in terms of self-reflectivity and awareness of the other, than the group with depression. In both psychosis groups negative symptoms were more robustly related to metacognition than other forms of symptoms after controlling for neurocognition. Results support the possibility that metacognitive deficits are a psychological factor which cross culturally contributes to negative symptoms and point to metacognition as a potentially important target for intervention.