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The Visuo-attentional Mediator of Social Facilitation (VAMOS)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. Identifier: NCT03929289
Recruitment Status : Not yet recruiting
First Posted : April 26, 2019
Last Update Posted : August 8, 2019
Information provided by (Responsible Party):
Hospices Civils de Lyon

Brief Summary:

Social psychology has long established that the mere presence of others influences the investigator's individual behavior and performance. "Social facilitation" refers to any improvement or deterioration of performance due to the presence of others. For more than a century, social psychology has acquired a solid knowledge of the principles governing this fundamental form of social influence.

But the underlying mechanism of social facilitation remains debated, as behavior alone cannot identify it with certainty. This major unresolved problem makes it particularly difficult to translate laboratory results on social facilitation into real applications in areas such as school or work, where others are ubiquitous. The purpose of this study will therefore be to identify the mediator of social facilitation.

Condition or disease Intervention/treatment Phase
Social Facilitation Behavioral: Social Facilitation Not Applicable

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 60 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Basic Science
Official Title: The Visuo-attentional Mediator of Social Facilitation
Estimated Study Start Date : October 1, 2019
Estimated Primary Completion Date : October 1, 2022
Estimated Study Completion Date : October 1, 2022

Arm Intervention/treatment
Experimental: Social Facilitation
Cognitive tasks during functional Magnetic Resonance Imaging (fMRI) observed or not by a subject's known peer.
Behavioral: Social Facilitation
During the functional Magnetic Resonance Imaging (fMRI) scan, the subject will perform cognitive tasks measuring eye movements and attention alternatively observed by a familiar peer (in an adjacent room) or not.

Primary Outcome Measures :
  1. Brain activation [ Time Frame: 50 minutes ]
    Cerebral Blood Oxygenation Level-Dependent (BOLD) signals

Secondary Outcome Measures :
  1. Behavioral performances [ Time Frame: 50 minutes ]
    pupillary diameter

  2. Behavioral performances [ Time Frame: 50 minutes ]
    error rate

  3. Behavioral performances [ Time Frame: 50 minutes ]
    reaction time

  4. Behavioral performances [ Time Frame: 50 minutes ]
    oculomotor kinematic parameters: velocity of saccades.

  5. Behavioral performances [ Time Frame: 50 minutes ]
    oculomotor kinematic parameters: duration of saccades.

  6. Behavioral performances [ Time Frame: 50 minutes ]
    oculomotor kinematic parameters: precision of saccades.

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 35 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Male or female
  • Aged 18 to 35 years old
  • Signed written informed consent
  • Insurance coverage

Exclusion Criteria:

  • Neurological or psychiatric or ophthalmological disorder
  • Non-stabilized medical condition
  • Ongoing treatment with drugs that affect the central nervous system

    • Uncorrected visual inadequacy
    • No fluency in French reading
    • Pregnant and / or breastfeeding woman, this exclusion criterion will be sought by questioning the subject
    • Subject commonly in care in a health or social facility for purposes other than that of research
    • Subject under guardianship
    • Subject deprived of liberty by a judicial or administrative decision
    • Incompatibility with the Magnetic Resonance Imaging (MRI) examination determined by answering the following questions:
  • Carrier of a neurological stimulator, cardiac (battery) or defibrillator
  • Carrier of a cardiac prosthesis (valve, stent ...) or vascular
  • Holder of intracranial clips or clamps (staples)
  • Carrier of a cerebrospinal fluid bypass
  • Presence of metal chips in the eyes
  • Metal prosthesis carrier (teeth, knees)
  • Pump carrier or infusion system
  • Presence of metal tattoo near the head
  • Presence of permanent makeup
  • Claustrophobia or respiratory disorders

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT03929289

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Contact: Denis PELISSON, MD 4 72 91 34 17 ext +33
Contact: Martine MEUNIER, MD 4 72 91 34 17 ext +33

Sponsors and Collaborators
Hospices Civils de Lyon
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Principal Investigator: Denis PELISSON, MD Centre de Recherche en Neuroscience de Lyon
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Responsible Party: Hospices Civils de Lyon Identifier: NCT03929289    
Other Study ID Numbers: 69HCL19_0268
2019-A01027-50 ( Other Identifier: ID-RCB )
First Posted: April 26, 2019    Key Record Dates
Last Update Posted: August 8, 2019
Last Verified: August 2019

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by Hospices Civils de Lyon:
Functional Magnetic Resonance Imaging (fMRI)
Healthy Subjects