Eeg - And Sleep Physiology Ppt =link=

Our internal "body clock." Located in the Suprachiasmatic Nucleus (SCN) of the hypothalamus, it operates on a roughly 24-hour cycle. Light detection via the retina entrains the SCN to the day/night cycle, regulating the release of Melatonin from the pineal gland to induce sleepiness at night.

Use a consistent color palette across your slides (e.g., Light Blue for N1, Dark Blue for N2, Purple for N3, and Red for REM). eeg and sleep physiology ppt

Complete muscle atonia (paralysis). The brain actively inhibits lower motor neurons via glycinergic and GABAergic pathways to prevent the physical acting out of vivid dreams. Our internal "body clock

Sharp, high-voltage negative deflections followed by a slower positive component, lasting at least 0.5 seconds. They protect sleep by suppressing cortical arousal to non-threatening environmental noises. Non-REM Stage 3 (N3): Deep / Slow-Wave Sleep (SWS) Complete muscle atonia (paralysis)

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Displays overall sleep architecture, fragmentation, and sleep efficiency at a glance. 4. Polysomnography (PSG) Scoring Criteria

Your PPT should highlight how the body's autonomous systems change outside of the brain.