Coherence Between Brain Cortical Function and Neurocognitive Performance During Changed Gravity Conditions (CORTICOG)

Caen University Hospital

Status

Completed

Conditions

Healthy

Treatments

Other: EEG measurement

Other: Parabolic flight

Other: NIRS measurements

Study type

Interventional

Funder types

Other

Identifiers

NCT02516787

10-082

Details and patient eligibility

About

Alongside a well-known physiological deconditioning, such as a decrease in muscle mass or bone demineralization, extended stays in weightlessness also cause cognitive dysfunction. However, the studies on this subject during space missions short or long term could not determine how these cognitive dysfunction resulted from a direct effect of weightlessness or a stress-related effect.

Analysis of electro-encephalography (EEG) using a standardized mapping method is used to study the changes of operation of the cerebral cortex as the near infrared spectroscopy (NIRS) is a reflection of changes in the cerebral hemodynamics. Their combined use is a relatively simple and economical method for studying brain changes in an environment where the normal brain imaging techniques can not be used.

The main objective of this experiment is to evaluate the alterations in brain cortical activity and brain oxygenation level induced by micro- and hypergravity conditions.

Enrollment

24 patients

Sex

All

Ages

18 to 65 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

healthy volunteers (men or women),
aged from 18 to 65,
affiliated to a Social Security system and, for non-French resident, holding an European Health Insurance Card (EHIC)
who accept to take part in the study,
who have given their written stated consent,
who already participated in parabolic flights (even in the same campaign)
All subjects will pass a medical examination similar to a standard aviation medical examination for private pilot aptitude (JAR FCL3 Class 2 medical examination). There will be no additional test performed for subject selection.

Exclusion criteria

Persons who took part in a previous biomedical research protocol, of which exclusion period is not terminated,
Persons with prior serious injuries to their head
Persons who take any medication or drugs influencing their central nervous system or cognitive performance
Pregnant women.