Ultraradian rhythms Flashcards
how long do the 5 stages of span for
90 minutes
what is stage 1 and 2
light sleep stage 1 high frequency, low amplitude alpha waves
stage 2 counties waves but sleep spindles occur
what is stage 3 and 4
deep/slow wave sleep. Delta waves with lower frequency and higher amplitude. Difficulty to wake someone here
what is stage 5
REM sleep paralysed body awake brain. Theta waves, eyes move, dreaming occurs
eval strength
improved understanding of age related sleep changes
sleep wake cycle reduces with age slow wave sleep
Cauter et al 2000 re setting sleep deficit may explain various issues in old age like less awareness
to increase slow wave sleep they use relaxation or meditation
eval limitation
significant variation between people
Tucker et al found large differences between participants in terms of the duration of each stage 3 and 4 especially
these differences are biologically determined
makes generalisation harder
