{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"institution":[{"name":"bioRxiv"}],"indexed":{"date-parts":[[2026,1,15]],"date-time":"2026-01-15T20:39:30Z","timestamp":1768509570575,"version":"3.49.0"},"posted":{"date-parts":[[2024,1,3]]},"group-title":"Neuroscience","reference-count":80,"publisher":"openRxiv","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"accepted":{"date-parts":[[2024,1,18]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                <jats:p>Disruption of conscious access contributes to the advent of psychotic symptoms in schizophrenia but could also explain lack of insight in other psychiatric disorders.<\/jats:p>\n                <jats:p>In this study, we explored how insight and psychotic symptoms related to disruption of consciousness. We explored consciousness in patients with schizophrenia, patients with obsessive-compulsive disorder (OCD) with good vs. poor insight and matched controls. Participants underwent clinical assessments and performed a visual masking task allowing us to measure individual consciousness threshold. We used a principal component analysis to reduce symptom dimensionality and explored how consciousness measures related to symptomatology.<\/jats:p>\n                <jats:p>We found that clinical dimensions could be well summarized by a restricted set of principal components which also correlated with the extent of consciousness disruption. More specifically, positive symptoms were associated with impaired conscious access in patients with schizophrenia whereas the level of insight delineated two subtypes of OCD patients, those with poor insight who had consciousness impairments similar to patients with schizophrenia, and those with good insight who resemble healthy controls.<\/jats:p>\n                <jats:p>Our study provides new insights about consciousness disruption in psychiatric disorders, showing that it relates to positive symptoms in schizophrenia and with insight in OCD. In OCD, it revealed a distinct subgroup sharing neuropathological features with schizophrenia. Our findings refine the mapping between symptoms and cognition, paving the way for a better treatment selection.<\/jats:p>","DOI":"10.1101\/2024.01.02.571832","type":"posted-content","created":{"date-parts":[[2024,1,5]],"date-time":"2024-01-05T11:03:47Z","timestamp":1704452627000},"source":"Crossref","is-referenced-by-count":0,"title":["Disruption of consciousness depends on insight in OCD and on positive symptoms in 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