What is this study trying to find out about psychological vulnerability?

This study aims to understand differences in how people with psychological vulnerability recognize themselves and distinguish themselves from others. It uses a special double mirror device to explore these abilities and their links to symptoms of psychological vulnerability. The research is led by the University Hospital, Brest.

Who may be eligible for this psychological vulnerability clinical trial?

Participants aged 15 to 25 years who either meet criteria for high risk of psychosis or are healthy volunteers may be eligible. Both males and females can participate. Important factors include no history of epilepsy or migraine, no glasses use, and ability to consent. Please review eligibility criteria for more details.

Is there any cost to participate in this psychological vulnerability clinical trial?

Study-related care, including the study procedures and all trial visits, is provided at no cost. However, personal travel costs may vary and are not guaranteed to be covered. Participants should plan accordingly for any travel expenses.

Actively Recruiting

Phase Not Applicable

Age: 15Years - 25Years

All Genders

Healthy Volunteers

ID04945278

Study of Self-Recognition and SelfOther Distinction Disorders in Patients With Psychological Vulnerability ALTER EGO

Led by University Hospital, Brest · Updated on 2026-03-19

Participants Needed

Research Sites

N/A

Total Duration

AI-Summary

What this Trial Is About

Researchers are studying whether people with psychological vulnerability differ from healthy volunteers in how they recognize themselves and distinguish themselves from others. The study focuses on self-recognition and selfother distinction abilities using a special double mirror device called Alter Ego. This research aims to explore possible links between these abilities and symptoms related to psychological vulnerability, including risks of psychosis. Participants sit on either side of the double mirror device, which gradually changes the image of their face into the face of another person or vice versa by adjusting light intensity. Both patients and healthy volunteers undergo this test within one day. Patients also complete the EASE test, designed to identify individuals at high risk for psychosis or schizophrenia. During the study, participants respond to questions about whether they see themselves or the other person as the mirror image changes. Researchers measure thresholds of self-recognition and analyze results from various tests including the EASE test, prodromal symptom assessments, cognitive functioning, and social functioning tests. The main outcome is the average threshold in the double mirror test, helping to understand selfother distinction differences. The study is conducted with participants aged 15 to 25 years and includes careful monitoring of responses and symptoms.

CONDITIONS

Brief Title

Study of Self-Recognition and Self/Other Distinction Disorders in Patients With Psychological Vulnerability

Who Can Participate

Age: 15Years - 25Years

All Genders

Healthy Volunteers

Eligibility Criteria

You may qualify if you...

Aged from 15 to 25 years
Patients meeting the Ultra High Risk criteria at CAARMS and/or SPI-A
Signed consent from participants and parents for minors
Affiliated with or benefiting from a social security scheme
Healthy volunteers aged 15 to 25 years
Volunteers not familiar with their matched patient
Signed consent from participants and parents for minors
Affiliated with or benefiting from a social security scheme

You will not qualify if you...

History of epilepsy and/or migraine
Refusal to participate by a minor even if legal representatives consent
Claustrophobia
Wearing glasses
Abnormal right and left visual acuity without contact lenses
Distinctive facial signs that cannot be temporarily removed
Subject under legal protection (curators/guardianship) or deprived of liberty

Research Team

Nathalie LAVENNE

Nolwenn DISSAUX

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