Growth hormone is released, tissue repair occurs, and the glymphatic system clears metabolic waste from the brain. EOG: No eye movements. EMG: Low muscle tone. 5. Stage R (REM Sleep)
Deep, slow-wave sleep (Stage N3); reflects cortical synchronization.
Placed on the submental (chin) muscle to record muscle tone/atonia. eeg and sleep physiology ppt
In clinical sleep medicine, EEG is integrated into a broader diagnostic test called a polysomnogram. A standard PSG simultaneously records multiple physiological parameters:
Sleep is not a passive state of inactivity. Instead, it is an active, highly organized biological process regulated by complex neural circuits. Understanding sleep requires looking at two primary biological mechanisms: Growth hormone is released, tissue repair occurs, and
Tracks eye movements to differentiate between REM (Rapid Eye Movement) and NREM (Non-REM) sleep.
What is the of your audience (e.g., medical students, polysomnographic technicians, or general biology undergraduates)? In clinical sleep medicine, EEG is integrated into
Developmental Changes in EEG Sleep Content:
Paradoxically, the EEG during REM resembles wakefulness, showing "sawtooth" waves and low-voltage, mixed-frequency activity. While the brain is highly active (dreaming), the body experiences muscle atonia to prevent the physical enactment of dreams. Clinical and Research Significance Monitoring these waveforms through Polysomnography (PSG)
Stage R is the most fascinating stage for neurophysiologists.