Waves on EEG during stage 4-NREM period of sleep is: (Repeat)
Correct Answer: Delta
Description: Ans: C (Delta) Ref: Pal GK, Reticular Formation, EEG and Steep, In: Textbook of Medical Physiology, Ahuja Publishing House 2007: 119:895Explanation:Non - REM Sleep (Slow Wave Sleep)Stage 1Beta to alpha rhythmStage 2Amplitude increasesSleep spindle (12-14Hz; 50pV; for about 2 Seconds) and K complexes (high amplitude )Stage 3High amplitude; low frequencyStage 4Delta rhythmAutonomic and visceral changes-| heart rate and BP| body temperatureSlow regular respiration| Gf activity| muscle toneNo rapid eye movement
Category:
Physiology
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