PSYC 1029 Lecture 3: Chapter 14 – Sleep.docx
Document Summary
Chapter 14 sleep, dreaming, and circadian rhythms. Rapid eye movements (rem) occur under eyelids. Measured through electroencephalogram (eeg), electrooculogram (eog), and the neck electromyogram (emg) Disturbance of sleep during first night is called the first-night phenomenon. After the eyes shut and a person prepares to go to sleep, alpha waves waxing and waning between 8 to 12 hz begin to punctuate the low voltage, high frequency waves of alert wakefulness. Stage 1 low voltage, high frequency signal slower than alert wakefulness. There is a gradual increase in eeg voltage and a decrease in eeg frequency as the person professes from stage 1 through stages 2, 3 and 4. Stage 2 is punctuated by k complexes and sleep spindles single large negative wave (upward deflection) followed immediately by a single large positive wave (downward deflection) Subsequent periods of stage 1 sleep eeg (emergent stage 1 eeg) are accompanied by.
