Social FacilitationVAMOSNCT03929289
The Visuo-attentional Mediator of Social Facilitation
A study testing Social Facilitation in people with Social Facilitation, run by Hospices Civils de Lyon at 1 site in France.
Trial 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. Read more about this study
- Who is it for?
- Ages 18 to 35 yearsHealthy volunteers can take part
- Conditions the study is for
- Social Facilitation
- What is being tested?
- Social Facilitation
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 43 participants
- Where
- 1 siteFrance
- Study dates
- 16 Apr 2021to 18 May 2022
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 35 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Male or female
- Aged 18 to 35 years old
- Signed written informed consent
- Insurance coverage
Who cannot join
- 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
Show all 20Show fewer
- 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
Trial locations and contacts
1 site in 1 country.
About this study
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.
- Conditions
- Social Facilitation
- Being tested
- Social Facilitation
- Keywords
- Functional Magnetic Resonance Imaging (fMRI), Healthy Subjects
- Medical subject headings
- Social Facilitation
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Social FacilitationBehavioural
During the functional Magnetic Resonance Imaging (fMRI) scans, the subject will perform cognitive tasks measuring eye movements and attention alternatively observed by a familiar peer (in an adjacent room) or not.
| Study group | Role | What they receive |
|---|---|---|
| Social Facilitation | Experimental | Cognitive tasks during the 2 functional Magnetic Resonance Imaging (fMRI) observed or not by a subject's known peer. Receives: Behavioral: Social Facilitation |
What is being measured
The primary outcome is the main question the study is designed to answer.
Brain activation
Cerebral Blood Oxygenation Level-Dependent (BOLD) signals
Measured: 50 minutes
Secondary outcomes (6)
Behavioral performances
pupillary diameter
Measured: 50 minutes
Behavioral performances
error rate
Measured: 50 minutes
Behavioral performances
reaction time
Measured: 50 minutes
Behavioral performances
oculomotor kinematic parameters: velocity of saccades.
Measured: 50 minutes
Behavioral performances
oculomotor kinematic parameters: duration of saccades.
Measured: 50 minutes
Behavioral performances
oculomotor kinematic parameters: precision of saccades.
Measured: 50 minutes
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted26 Apr 2019
- Study start16 Apr 2021
- Primary completion18 May 2022
- Study completion18 May 2022
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Social FacilitationStudies of the same condition, open and under way.
- More trials run by Hospices Civils de LyonThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Basic science
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 43 participants (actual)
Sponsor and investigators
- Lead sponsor
- Hospices Civils de Lyon
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Denis PELISSON, Principal investigator, Centre de Recherche en Neuroscience de Lyon
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03929289
- Sponsor's protocol ID
- 69HCL19_0268
- Other IDs
- 2019-A01027-50
- Acronym
- VAMOS
- Status last verified
- Aug 2025
- First submitted
- 12 Apr 2019
- Last updated
- 3 Sep 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Publications
Tricoche L, Royer d'Halluin M, Meunier M, Pelisson D. Neural bases of social facilitation and inhibition: how peer presence affects elementary eye movements. Soc Cogn Affect Neurosci. 2025 Jun 17;20(1):nsae079. doi: 10.1093/scan/nsae079.
PubMed 39506559
Study at a glance
From the registry record, last updated by the sponsor on 3 Sep 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Visuo-attentional Mediator of Social Facilitation
- ClinicalTrials.gov ID
- NCT03929289
- Acronym / sponsor ID
- VAMOS / 69HCL19_0268
- Conditions
- Social Facilitation
- Keywords
- Functional Magnetic Resonance Imaging (fMRI), Healthy Subjects
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 43 participants (actual)
- Lead sponsor
- Hospices Civils de LyonUniversity, hospital or other
- Study start
- 16 Apr 2021 (actual)
- Primary completion
- 18 May 2022 (actual)
- Study completion
- 18 May 2022 (actual)
- First posted
- 26 Apr 2019 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Study design
- Primary purpose
- Basic science
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Social Facilitation | Experimental | Behavioral: Social FacilitationCognitive tasks during the 2 functional Magnetic Resonance Imaging (fMRI) observed or not by a subject's known peer. |
Who may qualify
- Ages
- 18 to 35 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (4 listed)
- Male or female
- Aged 18 to 35 years old
- Signed written informed consent
- Insurance coverage
Key exclusion criteria (20 listed)
- Neurological or psychiatric or ophthalmological disorder
- Non-stabilized medical condition
- Ongoing treatment with drugs that affect the central nervous system
- Carrier of a neurological stimulator, cardiac (battery) or defibrillator
- Carrier of a cardiac prosthesis (valve, stent ...) or vascular
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Social FacilitationDuring the functional Magnetic Resonance Imaging (fMRI) scans, the subject will perform cognitive tasks measuring eye movements and attention alternatively observed by a familiar peer (in an adjacent room) or not. | Behavioural | Social Facilitation |
Primary outcome
Brain activation
Time frame: 50 minutes
Cerebral Blood Oxygenation Level-Dependent (BOLD) signals
6 secondary outcomes
Behavioral performances
Time frame: 50 minutes
Behavioral performances
Time frame: 50 minutes
Behavioral performances
Time frame: 50 minutes
Behavioral performances
Time frame: 50 minutes
Behavioral performances
Time frame: 50 minutes
Behavioral performances
Time frame: 50 minutes
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 3 Sep 2025.
- Results publication: PubMed 39506559Tricoche L, Royer d'Halluin M, Meunier M, Pelisson D. Neural bases of social facilitation and inhibition: how peer presence affects elementary eye movements. Soc Cogn Affect Neurosci. 2025 Jun 17;20(1):nsae079. doi: 10.1093/scan/nsae079.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Denis PELISSON principal investigator
Centre de Recherche en Neuroscience de Lyon
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Social Facilitation in people with Social Facilitation, run by Hospices Civils de Lyon at 1 site in France.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 20 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 3 Sep 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Brain activation (time frame: 50 minutes). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT03929289, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Sep 2025.