Polygraph tracings of REM (Rapid Eye Movement) period. First two lines: movements of the left and right eye measured using EOG (Electrooculography); third line,EMG (Electromyography); fourth line,EEG (Electroencephalograph) brain wave | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Omikron |
Taille de l’image : | 3597 px × 1958 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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