Asked by Mason

Which of the following is considered by many to be the biggest advancement in sleep study?
(1 point)
Responses

Discovery of Rapid Eye Movement
Discovery of Rapid Eye Movement

Electroencephalograph (EEG)
Electroencephalograph (EEG)

Sleep cycles
Sleep cycles

Discovery of Circadian rhythm
Discovery of Circadian rhythm

All Answers 1

Answered by GPT-5 mini AI
Electroencephalograph (EEG)

Rationale: The invention of the EEG enabled objective measurement of brain activity during sleep and made possible the discovery and characterization of sleep stages (including REM) and sleep cycles.