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Comparison of REM and Non-REM Sleep
Sleep is broadly divided into two distinct types: Rapid Eye Movement (REM) and Non-Rapid Eye Movement (NREM) sleep. These categories are differentiated by physiological characteristics such as eye movement, brain wave patterns, and muscle tone. Understanding these differences is fundamental to sleep science.
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Ch.4 States of Consciousness - Psychology @ OpenStax
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Non-Rapid Eye Movement (NREM) Sleep
Rapid Eye Movement (REM) Sleep
Hypnogram
Beta Waves
Comparison of REM and Non-REM Sleep
Brain Wave Frequency
Brain Wave Amplitude
Visual Representation of Brainwaves in Sleep Stages
A sleep researcher observes a participant's brain wave activity. At one point in the night, the readout shows low-frequency, high-amplitude waves. Later, the readout shows high-frequency, low-amplitude waves, similar to an awake state, accompanied by rapid eye movements. What is the most fundamental conclusion that can be drawn from these distinct patterns?
Brainwave Activity Across Sleep Stages