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The neurophenomenology of basic self-disturbance in early psychosis: Association with clinical outcome in an ultra-high risk sample.

Vera A Barata, Suzie Lavoie, Łukasz Gawęda, Emily Li, Louis Sass, Danny Koren, Patrick D. Mcgorry, Bradley N Jack, Josef Parnas, Andrea Polari, Kelly Allott, Jessica A Hartmann, Marija Krcmar, Andreas R Rasmussen, Thomas J Whitford, Cassandra Mj Wannan, Barnaby Nelson

Australasian Psychiatry August 1, 2025 DOI: 10.1177/10398562251346619 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Observational cohort Peer reviewed
Sample size 43
Population Ultra-high risk (UHR) individuals
Duration 12-month follow-up
Topics Philosophy of mind
Keywords Neurocognition Prodrome Psychosis Schizophrenia
Citations 3
Key findings Higher baseline basic self-disturbance scores predicted worse clinical outcomes at 12 months in ultra-high risk individuals.

Abstract

IntroductionWe previously proposed a neurophenomenological model of schizophrenia, linking basic self-disturbance with neural deficits of source monitoring and aberrant salience. Baseline comparisons in ultra-high risk (UHR) and first-episode psychosis (FEP) samples indicated a relationship between basic self-disturbance and source monitoring deficits, but not aberrant salience. The current paper reports on the 12-month follow-up results in the UHR group (n = 43), focusing on the association between baseline variables and clinical outcomes.MethodsOne-way ANOVA compared UHR-remitters (n = 18), UHR-persistent/transitioned to psychosis cases (n = 25) and FEP (n = 38) groups on baseline clinical and neuro-measures. Logistic regression assessed the baseline variables' predictive power for UHR outcomes.ResultsHigher baseline self-disturbance scores (EASE total) were found in the UHR persistence/transition and FEP groups compared to the UHR-remission group, and predicted worse UHR clinical outcomes. Source monitoring deficits were higher in FEP individuals compared to those with UHR persistence/transition.ConclusionHigh levels of basic self-disturbance may be a useful predictor marker of poor prognosis in UHR patients.

Comparable studies

Other observational and cohort studies on philosophy of mind, most cited first.

Study Year Design Participants
The phenomenology of near-death experiences Subjects who reported near-death experiences 1980 Retrospective study n = 78
Visual Phenomenology of the LSD Flashback Persons with a history of LSD use 1983 Observational cohort n = 123
The neurophenomenology of neutral hypnosis. Individuals of high, medium, and low hypnotizability 2013 Observational cohort n = 37
The Phenomenology of Acute Organic Psychosis Patients with acute organic psychosis and acute schizophrenics 1987 Observational cohort n = 148
EEG oscillatory states as neuro-phenomenology of consciousness as revealed from patients in vegetative and minimally conscious states. Brain-damaged patients with disorders of consciousness and healthy-conscious subjects 2012 Observational cohort

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