EOG (Electrooculogram)

Modern scientific dream research did not really accelerate until after Eugene Aserinsky and Nathaniel Kleitman’s 1953 discovery of rapid eye movement (REM) sleep and the subsequent linking of REM sleep with dreaming. Although later studies showed that significant dreaming could take place during non-REM sleep, the postulate that there was a close correlation between dreams and REM sleep guided scientific dream research for over a decade. The measurement of REM is referred to as an electrooculogram or EOG. It is obtained by placing electrodes around the outside of the eyes and recording changes in electrical potential between the back of the eye and the front of the eye.