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Hyperventilation and consciousness

Comparison of the effects of various modalities of hyperventilation on consciousness and EEG activity

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN57929074
Enrollment
100
Registered
2025-03-07
Start date
2025-02-01
Completion date
Unknown
Last updated
2025-03-31

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hyperventilation Other

Interventions

One of the study investigators will include participants when they come to the laboratory. Randomization will be performed using Microsoft Excel’s RAND function, and volunteers will participate in thr

Sponsors

Adoreps
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Adults and affiliated to a social security scheme. 2. Not in a situation of physical vulnerability (pregnant women) or social vulnerability (curatorship, guardianship, deprivation of liberty). 3. Have French as their mother tongue. 4. Affirm having received and understood complete information on the study from qualified personnel, and declare in writing that they consent to participate.

Exclusion criteria

Exclusion criteria: 1. History of cardio-respiratory, neurological, or psychiatric pathology, such as depression or anxiety disorder (including panic disorder with or without agoraphobia). 2. Chronic cardio-respiratory, neurological, or psychiatric pathology that has been identified and is requiring treatment. 3. Regular consumption of narcotic or psychotropic drugs or a history of psychedelic use. 4. Regular practice of yoga or meditation more than one session per week. 5. Pregnancy. 6. BMI 30 kg/m². 7. Score > 23 on the Nijmegen questionnaire. 8. Previous participation in experiments involving the induction of hypnosis or ENOC. 9. Smoking or former smoking with a cumulative smoking exceeding the limit of 5 pack-years. 10. Minors, protected adults, or those deprived of liberty. 11. Not affiliated with social security.

Design outcomes

Primary

MeasureTime frame
Modification of the State of consciousness, measured using the 5D-ASC questionnaire after the respiratory sequence.

Secondary

MeasureTime frame
1. Emotional state, measured using the WHO5 questionnaire before the respiratory sequence and two weeks after, and a verbatim two weeks after the respiratory sequence 2. Anxiety, measured using the STAI questionnaires before and after the respiratory sequence 3. Sympathic/parasympathic balance, measured using an electrocardiogram (ECG) and a Galvanic Skin Response (GSR) during the respiratory sequence 4. Brain activity, measured using an electroencephalogram (EEG) during the respiratory sequence 5. "Real-time" modification of the state of consciousness, measured using a visual analog scale (VAS) during the respiratory sequence 6. Modification of the state of consciousness, measured using a verbatim after the respiratory sequence

Countries

France

Contacts

Public ContactMarie Cécile Niérat
marie-cecile.nierat@orange.fr+33 142178196

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026