Physiology Ppt — Eeg And Sleep

Electroencephalography (EEG) is the cornerstone of sleep medicine, providing the primary "window" into the brain's activity during rest. By recording the electrical fluctuations of neurons via scalp electrodes, EEG allows researchers and clinicians to categorize sleep into distinct, physiological stages. The Mechanism of EEG in Sleep During wakefulness, the brain exhibits desynchronized

Slide 5: Overview of Sleep Physiology

Definition: Sleep is a naturally recurring state of mind and body, characterized by altered consciousness, inhibited sensory activity, and inhibition of nearly all voluntary muscles. eeg and sleep physiology ppt

Here is the detailed story on electroencephalogram (EEG) and sleep physiology, perfectly structured and formatted as ready-to-use slides for a PowerPoint presentation. 🧠 Slide 1: Title & Introduction Title: The Story of Sleep: Decoding the Brain via EEG N1 → N2 → N3 (SWS) → back to N2 → REM → repeat

Large negative peaks followed by positive slow waves, often reacting to external stimuli. Stage N3 (Slow-Wave Sleep): Synchronization: Large groups of neurons fire in unison

Sleep Apnea: Changes in brain waves often follow oxygen drops. Narcolepsy: Identified by rapid entry into REM sleep.

• N1 → N2 → N3 (SWS) → back to N2 → REM → repeat.

• Synchronization: Large groups of neurons fire in unison (produces high amplitude, low frequency waves—seen in sleep).
• Desynchronization: Neurons fire independently (produces low amplitude, high frequency waves—seen in alertness).

NREM (Non-Rapid Eye Movement): Subdivided into 3 distinct progressive stages (N1, N2, N3).