Perceptual biases and metacognition and their association with anomalous self experiences in first episode psychosis |
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| Institution: | 1. NORMENT, KG Jebsen Centre for Psychosis Research, Oslo University Hospital and Institute of Clinical Medicine, University of Oslo, 0424, Oslo, Norway;2. Division of Mental Health and Addiction, Oslo University Hospital, 0424, Oslo, Norway;3. Department for Specialised Inpatient Treatment, Division of Mental Health and Addiction, Akershus University Hospital, 1478 Lørenskog, Norway;4. Department of Psychology, Norwegian University of Science and Technology, 7491 Trondheim, Norway;1. II Department of Psychiatry, Medical University of Warsaw, Poland;2. Department of Psychiatry and Psychotherapy, University Medical Center Hamburg Eppendorf, Hamburg, Germany;3. Department of Psychology, University of Freiburg, Germany;1. Division of Mental Health, Innlandet Hospital Trust, Ottestad, Norway;2. Department of Psychology, University of Oslo, Oslo, Norway;3. NORMENT, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, Division of Mental Health and Addiction, University of Oslo, and Oslo University Hospital, Oslo, Norway;4. Orygen Youth Health Research Centre, Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia;5. Department of Mental Health Research and Development, Division of Mental Health and Addiction, Vestre Viken Hospital Trust, Drammen, Norway;1. Sapienza University–Rome, School of Medicine and Psychology, NESMOS Department (Neurosciences, Mental Health and Sense Organs), and Unit of Psychiatry, Sant’Andrea Hospital, Rome, Italy;2. Sapienza University–Rome, School of Medicine and Psychology, NESMOS Department (Neurosciences, Mental Health and Sense Organs), and Unit of Neurology, Sant’Andrea Hospital, Rome, Italy;3. Residential Care Home San Raffaele, Unit of Psychiatry, Montecompatri, Rome, Italy;4. Department of Mental Health, ASL of Viterbo, Italy |
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| Abstract: | Anomalous self-experiences have been described as a prerequisite for anomalous perceptual experiences. Later, these anomalous perceptual experiences may then be metacognitively appraised as distressing, maintaining these experiences and later leading to anomalous (delusional) beliefs. This model of anomalous events may potentially be driven by perceptual biases and metacognitive deficits. This cross-sectional study explored the association between perceptual biases, metacognition and anomalous self- and perceptual experiences and delusional beliefs in First Episode Psychosis (FEP) and a matched healthy control sample. Fifty-eight individuals with FEP and seventy-two healthy controls were included in the main analysis. Increased auditory perceptual biases were significantly associated with increased state and trait anomalous self-experiences, in particular alienation from surroundings and emotional numbing. No significant associations were found between metacognitive efficiency and anomalous experiences. These findings may be consistent with the minimal self-disturbance model of schizophrenia spectrum vulnerability, particularly with the hyperreflexivity concept. |
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| Keywords: | First Episode Psychosis Anomalous experiences Dissociation Perceptual biases Metacognition |
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