Multi-sensory and sensorimotor foundation of bodily self-consciousness - an interdisciplinary approach.
Silvio Ionta, Roger Gassert, Olaf Blanke
https://pubmed.ncbi.nlm.nih.gov/22207860/Actively Recruiting
Led by University Hospital, Brest · Updated on 2026-03-19
34
Participants Needed
1
Research Sites
N/A
Total Duration
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
Study of Self-Recognition and Self/Other Distinction Disorders in Patients With Psychological Vulnerability
N
Nathalie LAVENNE
N
Nolwenn DISSAUX
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University Hospital, Brest
Lead Sponsor
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Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - Within 1 day
Participants undergo tests including the double mirror device ALTER-EGO to assess self-recognition and self/other distinction abilities. Patients also complete the EASE test to detect risk of psychosis or schizophrenia.
1 visit (in-person)
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
NON_RANDOMIZED
Model
PARALLEL
Primary Purpose
BASIC_SCIENCE
Number of Arms
2
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https://pubmed.ncbi.nlm.nih.gov/8733211/University Hospital, Brest
Lead Sponsor