Scientists decode the hidden meaning behind screams and laughter
NCT ID NCT05238285
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study aims to better understand why humans make nonverbal sounds like screams, laughter, and grunts, and how our bodies react when we make them. Researchers will record 2000 participants making various vocal sounds and measure things like heart rate and skin temperature. The goal is to learn more about the nature and function of these signals, not to test a treatment.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 2,000 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Mar 2023
- Expected to finish
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Apr 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Healthy adult population aged 18 to 80 years
- Ages
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18 to 80 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: \- Participant should be affiliated or entitled to a social security scheme Exclusion Criteria: * Pregnant women * Voice production disorders * Hearing impairment, speech production disorders or major health problems. * Chronic smoker (more than 10 cigarettes per day)
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Centre Hospitalier Universitaire de Saint-Etienne
RECRUITINGSaint-Etienne, 42055, France
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