Eeg And Sleep Physiology Ppt !new! -

For standardized sleep staging, the American Academy of Sleep Medicine (AASM) recommends a modified montage based on the International 10-20 System. This system uses anatomical landmarks—the (bridge of the nose), Inion (prominence at the back of the skull), and Preauricular points (front of the ears)—to map electrode placement at 10% and 20% intervals.

| Feature | NREM (N3) | REM | | :--- | :--- | :--- | | EEG | High Amp, Slow (Delta) | Low Amp, Fast (Mixed) | | HR/BP | Low & Stable | Variable, Bursting | | Breathing | Regular | Irregular | | Muscle Tone | Normal | Absent (Atonia) | | Dreams | Vague, thought-like | Vivid, narrative | eeg and sleep physiology ppt