Sleep Cycle Flashcards
Fully Awake
beta waves, high frequency, low amplitude
Relaxed/Calm
alpha waves, low frequency, high amplitude
Brain waves during REM Sleep
beta waves, similar to fully awake
Characteristics of REM Sleep
little muscle movement, irregular breathing and heart rate
Which stage is characterized by the majority of dreaming?
REM sleep
Stage 1
theta waves (low frequency and amplitude), slow eye movements
Stage 2
theta waves (k complexes and sleep spindles), eye movement stops, heart rate and breathing slows
Which stage is characterized by memory consolidation?
Stage 2 sleep
Stage 3
delta waves (high amplitude, low frequency) deep sleep
Which stage is characterized by memory processing?
stage 3 sleep
what does the parietal gland secrete?
melatonin- promotes drowsiness
what does the adrenal cortex secrete?
cortisol-promotes wakefulness