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Quantified EEG in different G situations.

K De Metz¹, O Quadens, M De Graeve

¹University of Antwerp, CNRS, Brussels, Belgium.

Acta Astronautica

|February 1, 1994

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Brain electrical activity (EEG) during parabolic flights revealed hemispheric asymmetry in individuals experiencing motion sickness. Further analysis explored chaotic attractors in EEG patterns for deeper insights.

Area of Science:

Neuroscience
Space Physiology
Biophysics

Background:

Understanding brain activity during altered gravity is crucial for space travel.
Motion sickness is a common challenge for astronauts and participants in parabolic flights.
Previous studies used Fast Fourier analysis (FFT) on electroencephalography (EEG) data.

Purpose of the Study:

To investigate EEG patterns during parabolic flights.
To identify differences in brain activity between individuals with and without motion sickness.
To explore the potential of chaotic dynamics analysis in EEG during altered gravity.

Main Methods:

Recording EEG in trained astronauts and non-trained volunteers during parabolic flights.
Applying Fast Fourier analysis (FFT) to EEG data.

Related Experiment Videos

Calculating the dimensionality of chaotic attractors in EEG patterns across different g-epochs.

Main Results:

EEG analysis showed greater interhemispheric asymmetry in subjects experiencing motion sickness.
FFT analysis alone could not distinguish between deterministic and stochastic brain activity.
Preliminary calculations of chaotic attractor dimensionality were performed.

Conclusions:

Hemispheric asymmetry in EEG may be linked to motion sickness during parabolic flight.
Chaotic dynamics analysis offers a potential new method for characterizing EEG during altered gravity.
Further research is needed to validate these preliminary findings on EEG and motion sickness.