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NCT05501405: FERmarkers

Brain and Oculometric Markers of Emotional Facial Expression Recognition Deficits

Terminated NA Last updated 3 August 2025
What this trial tests

NA trial testing Electroencephalogram and eye-tracking recordings in Autism in 14 participants. Terminated before completion.

Timeline
30 March 2022
Primary endpoint
25 April 2025
25 April 2025

Quick facts

Lead sponsorHôpital le Vinatier
PhaseNA
StatusTerminated
Study typeINTERVENTIONAL
Allocationnon randomized
Designparallel
Maskingsingle
Primary purposebasic science
Enrollment14
Start date30 March 2022
Primary completion25 April 2025
Estimated completion25 April 2025
Sites1 location across France

Drugs / interventions tested

Conditions studied

Sponsor

Hôpital le Vinatier — full company profile →

Who can join

Adults 10 to 50, any sex, with Autism or Psychotic Disorders. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Disorders in the recognition of emotional facial expressions are part of the social cognition disorders described in several diseases. They are notably present in a quasi-systematic way in diseases associated with socio-emotional behavior disorders, such as schizophrenia and autism. They are also found in some genetic syndromes with atypical neurodevelopment. In previous studies, the investigators adopted the FPVS-EEG approach to investigate facial emotion discrimination abilities in typical and atypical developing populations. the investigatorshave shown that, in typical adults, the neural response to facial expressions emerges as emotional intensity parametrically increases. A time-domain analysis revealed three components, with the first two increasing linearly with expressive intensity, and the third (beyond 300 ms) showing categorical sensitivity to increasing expressive intensity. The investigators have already successfully extended this approach to the investigation of patients, such as those with 22q11.2 syndrome. The brain response to facial expression was reduced by approximately 36% in these patients, revealing impaired visual coding of emotional facial signals. In this study, response amplitude was associated with positive symptom severity, indicating a potential endophenotype for psychosis risk. Here, the investigators study the implementation of high-level processes and the top-down effect it should have on the response of occipitotemporal regions to identify altered brain markers in schizophrenic patients, but also in other populations with expression recognition deficits (autistic, 22q11.2, in particular). The implementation of compensatory strategies that should result in an increased exploration of the lower part of the face at the oculometric level will also be studied.

Publications & conference data

No peer-reviewed publications indexed yet for this trial.

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Data sources for this page

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