RecruitingNCT07663890

EXPLOration of Processes Involved in Dissociative Identity Disorder (DID)

EXPLOration Des Processus à l'Origine du Trouble Dissociatif de l'Identité (TDI)(EXPLOTDI)


Sponsor

Lille University

Enrollment

60 participants

Start Date

Jun 4, 2026

Study Type

OBSERVATIONAL

Conditions

Summary

Dissociative Identity Disorder (DID) is a psychological condition in which a person may feel as though they have multiple distinct personalities or identities. Today, this disorder is being discussed more and more, particularly among young people, partly due to its visibility on social media. However, researchers have observed that some individuals may mimic or exaggerate the symptoms, which makes it more difficult to understand the disorder. The goal of this study is therefore to better understand: * in which situations these identity shifts occur * what people feel at that moment * and what happens next To do this, researchers will interview approximately 60 people, some with a diagnosed DID and others exhibiting simulated symptoms. Participants will complete questionnaires and take part in an interview. The researchers will analyze: * the situations that trigger the changes * the associated thoughts and emotions * the behaviors * the consequences of these episodes The ultimate goal is to better understand this disorder in order to: * improve care * and better distinguish between genuine cases and feigned ones


Eligibility

Min Age: 18 Years

Inclusion Criteria3

  • Individuals who report having Dissociative Identity Disorder (DID)
  • At least 18 years old
  • Currently receiving treatment from a therapist (psychologist or psychiatrist)

Exclusion Criteria1

  • Individuals under guardianship or court-ordered protection

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Interventions

OTHERQuestionnaire and Physical Exam

5 standardized assessment tools measuring, respectively, dissociation (sDIS-Q; Vancappel, Chkili, et al., 2025), beliefs about dissociation (DSB; Vancappel et al., 2023), knowledge and skills related to dissociation (KADS; Vancappel, Chami, et al., 2025), psychotrauma (Ashbaugh et al., 2016), and dissociation simulation.

OTHERInterview

qualitative interview with the therapist they are already seeing


Locations(4)

Sophie Marek's Practice

Carvin, France

Online Consultation Cabinet

Chambray-lès-Tours, France

Online Consultation Cabinet - Alexis VANCAPPEL,

Lille, France

Centre Régional du Psychotraumatisme

Tours, France

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NCT07663890