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Use of a Psychophysiological Script-driven Imagery Experiment to Study Trauma-related Dissociation in Borderline Personality Disorder

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Complex Bodily Hallucinatory Experiences Scale (CBHES): Development, structure and psychometric properties.

George A Michael¹, Sara Salgues², Geoffrey Duran¹

¹Unité de recherche étude des mécanismes cognitifs, université Lumière Lyon 2, Lyon, France.

|April 5, 2025

Summary

This summary is machine-generated.

A new scale effectively assesses complex bodily hallucinations, which are common in the general population. This tool aids in clinical and research settings for evaluating these experiences.

Keywords:

Autoscopic phenomena Bodily hallucinations Body distortions Delusional parasitosis Distorsions corporelles Feeling of presence Hallucinations Hallucinations corporelles Hallucinations tactiles Parasitose Phénomènes autoscopiques Sensation de présence Tactile hallucinations

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Area of Science:

Psychiatry
Neurology
Psychology

Background:

Complex bodily hallucinations are prevalent across various conditions and in healthy individuals.
Existing assessments often do not evaluate bodily hallucinations independently.
There is a need for a dedicated tool to measure these specific phenomena.

Purpose of the Study:

To develop and validate a concise scale for assessing complex bodily hallucinations.
To evaluate four distinct themes: delusional parasitosis, feeling of presence, autoscopic phenomena, and body distortions.

Main Methods:

A new short scale was developed based on prior research and clinical observations.
The scale was administered to 623 participants from the general population.
Confirmatory Factor Analysis was used to determine the underlying structure.

Main Results:

Complex bodily hallucinations were reported by 96.6% of participants.
A hierarchical model linked the four themes to bodily self-consciousness.
The scale demonstrated good internal consistency, test-retest reliability, and convergent validity.

Conclusions:

The developed short scale possesses strong psychometric properties.
It is suitable for use in both clinical practice and research environments.
The scale provides a sensitive and specific measure for complex bodily hallucinations.