Cognitive test in Schizophrenia - Clinical Trials Registry

Study Overview

Status

Completed

Conditions

Schizophrenia

Intervention / Treatment

Other: cognitive test

Detailed Description

By using a familiarity continuum task based on the existence of the categorical perception effect, the objective of this study was to determine whether SZP present hyper- or hypo-familiarity.

Study Type

Observational

Enrollment (Actual)

30

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

France
- - Lille, France
    - CHRU,Hôpital Fontan

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

Adult
Older Adult

Accepts Healthy Volunteers

N/A

Sampling Method

Non-Probability Sample

Study Population

patients with a diagnosis of schizophrenia

Description

Inclusion Criteria:

(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

Exclusion Criteria:

(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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
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 Time Frame: at inclusion	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

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University Hospital, Lille

Investigators

Principal Investigator: Pierre Thomas, M, University Hospital, Lille

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

July 1, 2012

Primary Completion (Actual)

July 1, 2017

Study Completion (Actual)

July 1, 2017

Study Registration Dates

First Submitted

November 23, 2025

First Submitted That Met QC Criteria

May 20, 2026

First Posted (Actual)

May 27, 2026

Study Record Updates

Last Update Posted (Actual)