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Exploration of Neural Bases in Social Cognition

NCT02110017 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 60

Last updated 2015-02-05

No results posted yet for this study

Summary

An impairment in social cognition in schizophrenia could account for the severe professional and social difficulties among patients. Social cognition is the way the social world is understood, perceived and interpreted. It includes all the process than enable oneself to interact with another person, namely emotion perception and processing, theory of mind (ToM), social perception, social knowledge and attributional style. Since these process are interconnected, social cognition should be investigated through ecological tasks which activate all of them together. Developing a social cognition ecological task, then testing the reproducibility of the functional magnetic resonance imagery (fMRI) BOLD signal is the main objective of this study. The secondary objective is to seek a functional deficit among the neural network of social cognition in patients with schizophrenia compared with healthy subjects.

Forty healthy subjects, aged from 18 to 60 years old, who have given a written consent, will be included. The social cognition paradigm will be developed and the fMRI activations will be compared to those of a visual cartoon based task, known to turn on the neural network of ToM. BOLD signal variations at a high statistical correction ratio (p\<0.05) will be explored and compared to the signal of a second fMRI, made on the same 20 healthy subjects one month later, to test reproducibility (% of identical activated voxels during the 2 fMRI, p\<0.05).

Twenty matched patients with schizophrenia (DSM-IV-R), aged from 18 to 60 will be included to test the secondary objective. We make the hypothesis of a fMRI functional alteration in the cerebral network involved in social cognition, especially in the medial prefrontal cortex, among patients compared with healthy subjects.

Conditions

  • Interpersonal Relations
  • Schizophrenia
  • Magnetic Resonance Imaging, Functional

Interventions

OTHER

fMRI social cognition task

fMRI social cognition task : each subject will go through 3 runs of a fMRI paradigm, first one verbal then two visual runs, which are meant to activate the theory of mind network.

Sponsors & Collaborators

  • University Hospital, Caen

    lead OTHER

Principal Investigators

  • Perrine BRAZO, MD-PhD · University of Caen, UMR 6301 ISTCT ISTS group; CNRS UMR 6301 ISTCT GIP Cyceron; CEA UMR 6301 ISTCT; CHU de Caen, Department of psychiatry, Centre Esquirol

Study Design

Allocation
NON_RANDOMIZED
Purpose
HEALTH_SERVICES_RESEARCH
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2013-09-30
Primary Completion
2015-09-30
Completion
2015-09-30

Countries

  • France

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02110017 on ClinicalTrials.gov