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The intrasubjectivity of self, voices and delusions: A phenomenological analysis.

Cherise Rosen, Nev Jones, Kayla A Chase, Hannah Gin, Linda S Grossman, Rajiv Sharma

Psychosis 2016 DOI: 10.1080/17522439.2016.1162839 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Observational study Peer reviewed
Sample size 92
Population Participants experiencing psychosis, including schizophrenia and bipolar with psychosis groups
Topics Philosophy of mind
Keywords Auditory verbal hallucinations Delusions Psychosis
Key findings Co-occurring auditory verbal hallucinations and delusions were more prevalent in schizophrenia than in bipolar with psychosis. AVHs correlated positively with delusions of reference, persecution, control, thought insertion, thought withdrawal, and thought broadcasting, but not with grandiose, somatic, religious, guilty, or jealousy-themed delusions. Two clusters emerged: Voices and Thought Delusions, and Voices and Thematic Delusions.

Abstract

To advance the area of phenomenology of voices and their interrelatedness to forms of delusions this study investigated the prevalence and interrelatedness of co-occurring auditory verbal hallucinations (AVHs) and delusions. Additionally we explored the characterization of distinct sub-categories/clusters of AVHs and delusions. Ninety-two participants experiencing psychosis were administered standardized clinical measures. We found a significant diagnostic difference with increased prevalence of co-occurring AVHs and delusions within the schizophrenia group compared to the bipolar with psychosis group. Regardless of diagnosis, there was a significant positive correlation between AVHs and delusions of reference, persecution, control, thought insertion, thought withdrawal and thought broadcasting. However, no significant relationship was found between AVHs and grandiose, somatic, religious, guilty or jealousy-themed delusions. Cluster analysis yielded two distinct cluster groups. Cluster One: Voices and Thought Delusions, and Cluster Two: Voices and Thematic Delusions. Cluster One participants showed elevated disorganized, cognitive and depressive symptoms, but not negative symptoms or excitement. This study underscores the need for expanded clinical and phenomenological research into the intersection of AVHs and delusions, including work that seeks to deconstruct conventional divisions between ostensible symptoms of perception' (hallucinations) and belief' (delusions).

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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