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Self-PerceptionSINOVE-PRONCT05238285

Production of Nonverbal Acoustic Signals and Resulting Physiological Responses

An observational study of Self-Perception, run by Centre Hospitalier Universitaire de Saint Etienne at 1 site in France.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

Like many other animals, humans produce nonverbal vocal signals including screams, grunts, roars, cries and laughter across a variety of contexts. However, despite their importance in the human vocal repertoire, the mechanisms and functions of non-verbal signals remain little studied and poorly understood in… Read more about this study

Who is it for?
Ages 18 to 80 yearsHealthy volunteers can take part
Conditions the study is for
Self-Perception
What is being tested?
Production of vocal sounds
How many people
2,000 participants
Where
1 siteFrance
Study dates
8 Mar 2023to Apr 2027
Phase
Observational
Are there results?
Not yet: the study is under way

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 80 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Healthy adult population aged 18 to 80 years

Who may be able to join

  • Participant should be affiliated or entitled to a social security scheme

Who cannot join

  • Pregnant women
  • Voice production disorders
  • Hearing impairment, speech production disorders or major health problems.
  • Chronic smoker (more than 10 cigarettes per day)

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

France1 site, 1 recruiting
  • Centre Hospitalier Universitaire de Saint-Etienne

    Saint-Etienne, 42055

    David REBY, MDPHD

    Nicolas MATHEVON, MDPHD

    Recruiting

Other trials in France

About this study

Like many other animals, humans produce nonverbal vocal signals including screams, grunts, roars, cries and laughter across a variety of contexts. However, despite their importance in the human vocal repertoire, the mechanisms and functions of non-verbal signals remain little studied and poorly understood in humans.Our studies aim to improve our understanding of the nature and function of non-verbal signals.

Read the detailed description

Like many other animals, humans produce nonverbal vocal signals including screams, grunts, roars, cries and laughter across a variety of contexts. Many of these signals (such as cries) are already produced at birth and likely serve a number of important biological and social functions. In addition, human speech is characterised by nonlinguistic acoustic parameters (such as pitch, formant frequencies, and nonlinear phenomena) that are known to correlate with biologically important traits of the vocalizer.

However, despite their importance in the human vocal repertoire, the mechanisms and functions of non-verbal signals remain little studied and poorly understood in humans.

Theses studies aim to improve the understanding of the nature and function of non-verbal signals. Thus, this study is part of a long-term research project in which investigators are trying to clarify the information contained in the acoustic structure of human non-verbal signals, and to investigate the factors influencing their production.

Conditions
Self-Perception
Being tested
Production of vocal sounds
Keywords
acoustic analysis, physiological responses, psycho-acoustic tests

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Production of vocal soundsBehavioural

    Participants will be asked to produce vocal sounds of different nature according to the non-verbal parameters of interest for the given study.

    For example, they can read a script containing vowels ('a', 'e', 'i', 'o', 'u'), short sentences ('hello, how are you'), longer passages of standardised reading texts, and can also be asked to speak freely about any topic ('freedom of speech'). They can be asked to play a role or to imitate a particular emotional state. For example, "imagine that you have just been told that you have won a million euros in the lottery. Produce a vocalisation to express your excitement" or "talk to your dog your dog by imagining that he has done a negative action and then do the same thing by imagining that this time imagining that the action was positive".

Study groups in NCT05238285
Study groupRoleWhat they receive
Healthy adult population aged 18 to 80 yearsParticipants will be asked to produce vocal sounds of different nature according to the non-verbal parameters of interest for the given study.
Receives: Behavioral: Production of vocal sounds

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Vocal analysis

    Participants will receive instructions on what to say or what type of non-verbal vocalisation to produce during the manipulation.

    The vocalisations thus produced by the participants will be systematically recorded and analysed using software adapted to acoustic analysis

    Measurement of acoustic variables such as fundamental frequency (pitch), vocal tract resonances (formants) and vocal disturbances (jitter, shimmer), the nonlinearities and chaotic/noise properties of vocalisations

    Measured: During the vocal production

Secondary outcomes (5)
  1. Heart rate (bpm)

    Measured: During the vocal production

  2. Skin conductance (Siemens)

    Measured: During the vocal production

  3. Skin temperature (°C)

    Measured: During the vocal production

  4. Nociception Level Index (NOL)

    A non-invasive finger probe, containing four sensors, will be placed on the on the index finger of the participants.

    Measured: During the vocal production

  5. Pupillary diameter (millimeter)

    Using a high resolution binocular for automated pupil diameter measurement with an infrared camera

    Measured: During the vocal production

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted14 Feb 2022
  2. Study start8 Mar 2023
  3. Primary completionApr 2027 (estimated)
  4. Study completionApr 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Other
Time perspective
Prospective
Enrolment
2,000 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05238285
Sponsor's protocol ID
20CH259
Other IDs
2020-A03457-32:
Acronym
SINOVE-PRO
Status last verified
May 2026
First submitted
2 Feb 2022
Last updated
6 May 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Self-Perception, run by Centre Hospitalier Universitaire de Saint Etienne 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 1 inclusion and 4 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: looking for participants now, as of the sponsor's last update on 6 May 2026. 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?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact ROLAND PEYRON, MDPhD ((0)477127805 ext. +33, roland.peyron@chu-st-etienne.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Vocal analysis (time frame: During the vocal production). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 6 May 2026.

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