2018
DOI: 10.1016/j.psychres.2018.04.061
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A Bayesian model comparison approach to test the specificity of visual integration impairment in schizophrenia or psychosis

Abstract: Impaired visual integration is well documented in schizophrenia and related to functional outcomes. However, it is unclear if this deficit is specific to schizophrenia, or characteristic of psychosis more broadly. To address this question, this study used a Bayesian model comparison approach to examine the evidence of three grouping models of visual integration performance in 116 individuals with schizophrenia (SZ), schizoaffective disorder (SA), bipolar disorder (BD) with or without a history of prominent psy… Show more

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Cited by 13 publications
(9 citation statements)
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References 66 publications
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“…The present findings suggest that unmedicated and medicated individuals show a deficit relative to controls. These findings are consistent with prior research that did not find a relationship in medicated patients between chlorpromazine equivalence and integration (Grove et al 2018;Keane et al 2016;Silverstein et al 2009) and consistent with previous studies showing deficits in unmedicated patients relative to controls (Frith et al 1983;Keri et al 2005). Thus, our findings extend previous research suggesting that impairments in visual integration are an aspect of Even though we found strong evidence for cognitive impairment among unmedicated individuals with schizophrenia, there were some differences between medicated and unmedicated individuals.…”
Section: Discussionsupporting
confidence: 93%
“…The present findings suggest that unmedicated and medicated individuals show a deficit relative to controls. These findings are consistent with prior research that did not find a relationship in medicated patients between chlorpromazine equivalence and integration (Grove et al 2018;Keane et al 2016;Silverstein et al 2009) and consistent with previous studies showing deficits in unmedicated patients relative to controls (Frith et al 1983;Keri et al 2005). Thus, our findings extend previous research suggesting that impairments in visual integration are an aspect of Even though we found strong evidence for cognitive impairment among unmedicated individuals with schizophrenia, there were some differences between medicated and unmedicated individuals.…”
Section: Discussionsupporting
confidence: 93%
“…First, we considered object detection across a spectrum of psychiatric disorders with shared clinical features (e.g., schizophrenia spectrum and bipolar affective disorders) and in populations with subthreshold expressions of psychosis and genetic liability for psychotic psychopathology (e.g., biological relatives). This is consistent with previous work showing that psychotic symptoms predict sensory abnormalities more closely than diagnosis across the bipolar and schizophrenia spectra (Grove et al, 2018). More generally, object detection abnormalities are associated with subclinical psychotic-like experiences and perceptual aberrations (Cicero & Kerns, 2010; DeYoung et al, 2012; Partos et al, 2016; Teufel et al, 2015; Wallace, 1990; Widiger & Crego, 2019).…”
supporting
confidence: 93%
“…Aberrant processing of visual stimuli can lead to perceptual abnormalities that may manifest as visual distortions or hallucinations. Recent investigations suggest that abnormal visual processing is due in part to deviant functions of the visual cortex (Silverstein et al 2015a) and may reflect abnormal sensory gain control in schizophrenia (Butler et al 2008;Earls et al 2016;Grove et al 2018) and mark genetic liability for the disorder (Sponheim et al 2013;Earls et al 2016;Grove et al 2018) .…”
Section: Introductionmentioning
confidence: 99%