Understanding nonverbal vocal signals and their effects on the body

Production of Nonverbal Acoustic Signals and Resulting Physiological Responses

Observational Centre Hospitalier Universitaire de Saint Etienne · NCT05238285

This study looks at how different sounds we make, like screams and laughter, affect our bodies to better understand their meaning and purpose.

Quick facts

Study typeObservational
Enrollment2000 (estimated)
Ages18 Years to 80 Years
SexAll
SponsorCentre Hospitalier Universitaire de Saint Etienne Academic / other
Locations1 site (Saint-Etienne)
Trial IDNCT05238285 on ClinicalTrials.gov

What this trial studies

This observational study investigates the production of nonverbal vocal signals, such as screams and laughter, and their physiological responses in humans. It aims to clarify the information contained in the acoustic structure of these signals and the factors influencing their production. By analyzing various vocalizations, the study seeks to enhance our understanding of their biological and social functions. Participants will produce vocal sounds while their physiological responses are monitored.

Who should consider this trial

Good fit: Ideal candidates include individuals who are affiliated with a social security scheme and do not have any voice production or hearing disorders.

Not a fit: Patients with voice production disorders, hearing impairments, or major health problems may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide insights into the biological and social roles of nonverbal communication, potentially improving therapeutic approaches for communication disorders.

How similar studies have performed: While the study explores a relatively novel area of research, similar studies on animal vocalizations have shown promising results in understanding communication signals.

Eligibility criteria

Show full inclusion / exclusion criteria
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)

Where this trial is running

Saint-Etienne

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Self-Perceptionacoustic analysisphysiological responsespsycho-acoustic tests
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.