Kinesiology 1070A/B Lecture Notes - Lecture 14: Slow-Wave Sleep, Delta Wave, Ultradian Rhythm

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 1070A/B
• Professor: Prapavessis

Document Summary

Heart rate, respiration rate, and body temp decrease. Alpha waves (8-13 cycles per second) appear on an electroencephalogram. 3 separate stages (stage 1, stage 2, stage 3) Rapid eye movement rarely occurs during the stages. Semi conscious state characterized by further reduction in heart rate, irregularity in respiration and muscle relaxation may trigger involuntary twitching (hypnic jerks) Body temp continues to decrease= enter stage 2. Eeg pro le exhibits short bursts of rhythmical activity in the 13-16 cps range= sleep spindles. Sleep spindles mark the the boundary between perceptions of semi-consciousness and sleep. Initial appearance of very slow brain waves (delta waves: 0. 5-3 cps) Eeg pro le contains more than 50% delta waves. Stage 3 and 4 are combined when looking at sleep patterns= slow wave sleep (sws) Slow wave patterns (sws) and non- rapid eye movement (rem) facilitate body restoration process. Low voltage, mixed frequency eeg in conjunction with episodic rems and low amplitude emg.