NREM v/s REM Sleep

NREM Sleep

REM Sleep

Sympathetic outflow decrease

Sympathetic outflow increase

BP & HR decrease

BP & HR increase

Night terror

Night mare (fearful dreams)

No eye movement (NREM)

Rapid eye movements (REM)

Dreaming: Rare, if any

Dreaming: Active dreams

• Nocturnal enuresis

• Sleep talking (Somniloquy)

• Sleep walking (Somnambulism)

• Sleep terror (Night terror)

• Narcolepsy

• Muscle atonia (paralysis): below neck body paralysis

• Ponto-geniculo-occipital (PGO) spike

• Penile erection, Clitoris tumescence

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