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The predisposition to hallucinate

A Richardson, P Divyo

    Psychological Medicine
    |November 1, 1980
    PubMed
    Summary

    Individuals prone to hallucinations exhibit impaired boundary confusion, struggling to distinguish imagination from reality. This study found alcohol hallucinators performed worse on tests measuring perceptual and conceptual boundary confusion.

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    Area of Science:

    • Psychology
    • Neuroscience
    • Psychopathology

    Background:

    • Individuals prone to hallucinations may struggle with perceptual-conceptual distinctions.
    • A lack of familiarity with internal information sources is also hypothesized.

    Purpose of the Study:

    • To investigate boundary confusion and familiarity with internal sources in alcoholic hallucinators.
    • To test the hypothesis that hallucinators have impaired perceptual-conceptual distinctions.

    Main Methods:

    • Comparison of alcoholic hallucinators and non-hallucinators.
    • Utilized the Embedded Figures Test for perceptual boundary confusion.
    • Employed the Intersensory Time Judgement Test for conceptual boundary confusion.

    Main Results:

    • Alcoholic hallucinators showed significantly worse performance on both the Embedded Figures Test and the Intersensory Time Judgement Test.
    • Evidence supported the boundary confusion hypothesis.
    • No significant support was found for the lack of familiarity hypothesis.

    Conclusions:

    • Hallucinators demonstrate significant boundary confusion, impacting their ability to differentiate internal and external reality.
    • Findings suggest boundary confusion is a key cognitive factor in hallucination predisposition.
    • Further research is needed to explore other aspects of hallucination predisposition.

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