NCT07608250

Brief Summary

Categorical perception of familiarity in schizophrenic patients

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
30

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Jul 2012

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 1, 2012

Completed
5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2017

Completed
8.4 years until next milestone

First Submitted

Initial submission to the registry

November 23, 2025

Completed
6 months until next milestone

First Posted

Study publicly available on registry

May 27, 2026

Completed
Last Updated

May 27, 2026

Status Verified

November 1, 2025

Enrollment Period

5 years

First QC Date

November 23, 2025

Last Update Submit

May 20, 2026

Conditions

Schizophrenia

Keywords

Categorical perception; Familiarity; Morph; Schizophrenia.

Outcome Measures

Primary Outcomes (1)

  • facial stimuli, which consisted of picture morphs of unfamiliar faces and faces that were personally familiar to the participants. The percentage of the familiar face

    contained in the morph ranged from 5 to 95%. The participants were asked to press a button when they felt familiar with the face that was presented.

    at inclusion

Interventions

cognitive testOTHER

familiarity continuum task based on the existence of the categorical perception effect

Also known as: morphing test

Eligibility Criteria

Age18 Years+
Sexall
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

patients with a diagnosis of schizophrenia

You may qualify if:

  • (a) provide informed consent to participate in the survey, (b) speak French, (c) aged 18 years or older, (d) free of any mental or psychological incapacity to participate due to acute decompensation of a psychiatric disorder or severe substance withdrawal

You may not qualify if:

  • (a) no informed consent to participate in the survey, (b) do not speak French, (c) aged under18 years (d) free of any mental or psychological incapacity to participate due to acute decompensation of a psychiatric disorder or severe substance withdrawal

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

CHRU,Hôpital Fontan

Lille, France

Location

MeSH Terms

Conditions

Schizophrenia

Interventions

Neuropsychological Tests

Condition Hierarchy (Ancestors)

Schizophrenia Spectrum and Other Psychotic DisordersMental Disorders

Intervention Hierarchy (Ancestors)

Psychological TestsBehavioral Disciplines and Activities

Study Officials

  • Pierre Thomas, M

    University Hospital, Lille

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 23, 2025

First Posted

May 27, 2026

Study Start

July 1, 2012

Primary Completion

July 1, 2017

Study Completion

July 1, 2017

Last Updated

May 27, 2026

Record last verified: 2025-11

Data Sharing

IPD Sharing
Will not share

Locations

FR(1)