Health TrialsbyHealthPanel

Production of Nonverbal Acoustic Signals and Resulting Physiological Responses

ConditionSelf-Perception
Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18-80
SponsorCentre Hospitalier Universitaire de Saint Etienne

About this trial

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.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

None

Disqualifiers

Pregnant women

Voice production disorders

Hearing impairment, speech production disorders or major health problems.

Chronic smoker (more than 10 cigarettes per day)

Trial population

Healthy adult population aged 18 to 80 years

Trial design

Design model

Other

Time perspective

Prospective

Treatments tested in this trial

  • Production of vocal sounds

    Behavioral

    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".

Treatment groups

2,000 Participants
are divided into 1 treatment group
Group A: Healthy adult population aged 18 to 80 years1 intervention

Trial outcomes

Primary outcomes

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

Time frame
During the vocal production

Secondary outcomes

1

Heart rate (bpm)

Time frame
During the vocal production
2

Skin conductance (Siemens)

Time frame
During the vocal production
3

Skin temperature (°C)

Time frame
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.

Time frame
During the vocal production

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Centre Hospitalier Universitaire de Saint Etienne

Lead sponsor

University of Lyon

Collaborator

Source ClinicalTrials.gov
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