Introduction: Theories of delusions which rely on a combination of abnormal experience and defective belief evaluation and/ or cognitive bias are the subject of an emerging consensus. This paper challenges the validity of these theories and constructs a two factor alternative.
Methods: The paper starts by identifying the difficulty the current theories have explaining the complex delusions of schizophrenia and then, by considering, first, the aetiology of somatopsychotic symptoms, and second, the literature on the relationship between confabulation and allopsychotic symptoms, demonstrates that the natural solution is to retain the experiential factor whilst replacing the second factor with confabulation.
Results: The paper is then able to demonstrate that the resultant two-factory theory can clarify recent work on the aetiological role of autonoetic agnosia and on the relationships between confabulation, delusion, and thought disorder.
Conclusions: The theory supersedes currently available theories in terms of its simplicity, fruitfulness, scope and conservatism and represents an advance in the search for unified theory of psychosis.
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http://dx.doi.org/10.1080/13546805.2013.803959 | DOI Listing |
Surg Neurol Int
June 2024
Department of Neurosurgery, King Fahad University Hospital, Al Khobar, Saudi Arabia.
Background: Klüver-Bucy syndrome (KBS) is a rare neuropsychiatric disorder, and it can be associated with a variety of neurological disorders. It is characterized by visual agnosia, placidity, hyperorality, hypersexuality, dietary changes, amnesia, and hypermetamorphosis. KBS is mainly a clinical diagnosis, with at least three symptoms sufficient to diagnose the condition.
View Article and Find Full Text PDFFront Psychiatry
October 2023
Division of Adult Psychiatry, Department of Psychiatry, University Hospitals of Geneva, Geneva, Switzerland.
Fahr's disease (FD) is a rare disorder, characterized by basal ganglia calcification and presenting with movement disorders, speech impairment, cognitive deficits, and neuropsychiatric symptoms. Psychotic disorders related to FD are barely described in the literature, and knowledge is missing concerning pathophysiology, course, and management. Here, we report on the long-term follow-up of a patient who had three acute episodes of FD-psychosis characterized by bizarre delusions and behavioral disorganization, without hallucinations.
View Article and Find Full Text PDFJ Clin Psychopharmacol
May 2023
From the Team Daniel Running for Recovery from Mental Illness, Bedford, NY; The CURESZ Foundation, Fairfield, OH; and Families for Treatment, Baltimore, MD.
Cortex
May 2023
Dartmouth College, Hanover, NH, USA Moore Hall 3 Maynard St, Hanover, NH 03755, USA.
COVID-19 can cause psychological problems including loss of smell and taste, long-lasting memory, speech, and language impairments, and psychosis. Here, we provide the first report of prosopagnosia following symptoms consistent with COVID-19. Annie is a 28-year-old woman who had normal face recognition prior to contracting COVID-19 in March 2020.
View Article and Find Full Text PDFNeurocase
April 2022
Geriatric Psychiatry Unit, Department of Psychiatry, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, India.
Dementia is a neurodegenerative condition with progressive decline in cognitive faculties and associated with different clinical phenomena. Mirror phenomenon in terms of both mirror agnosia and mirror image agnosia wherein there is difficulty in processing and perception of reflected images is not uncommonly seen, and understanding the same can contribute to early diagnosis and prognostication. We report two elderly women with Alzheimer's dementia and frontotemporal dementia, respectively, presenting with features of abnormalities in mirror image processing.
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