Eeg And Sleep: Physiology Ppt

Sleep is divided into two distinct phases:

  • REM (Rapid Eye Movement) Sleep:

    • Title: Stage N1 – Drowsiness (Light Sleep) Content: eeg and sleep physiology ppt

  • Physiology: Slow rolling eye movements on EOG; reduced muscle tone.
  • Duration: Typically 1–7 minutes. Visual: EEG epoch showing theta waves and a vertex sharp wave; EOG channel showing slow eye movements.

    • Electroencephalography (EEG) is the primary noninvasive tool for measuring brain electrical activity and is central to characterizing sleep. Sleep is an active, regulated physiological state composed of multiple stages with distinct EEG signatures that reflect underlying neural network dynamics. Understanding EEG patterns across wakefulness and sleep informs basic neuroscience, clinical sleep medicine, and cognitive research. Sleep is divided into two distinct phases: