Lecture 2 Flashcards
(34 cards)
from birth to old age, sleep amount gradually
decreases
REM sleep daily for most adults is about
2 hrs
REM sleep for most newborns is about
8 hrs
how is sleep recorded in utero
body movements and eye movements and heart rate via ultrasound
types of sleep done by 32 weeks gestation
wakefulness, quiet sleep, active sleep, indeterminate sleep
wakefulness at 32 weeks gestation
eye movements, gross body movement, variable heart rate
quiet slep by 32 weeks gestation
infrequent body movement, no eye movement, regular reart rate
active sleep at 32 weeks gestation
bursts of eye movement, twitches and jerking movemnts, variable heart rate
indeterminate sleep
sleep that isnt wake, quiet, or active sleep
80% of total sleep at 32 weeks gest is
active sleep
changes in sleep after 32 weeks:
increase quiet sleep, decrease indeterminate sleep, no change active sleep
0-6 months; types of sleep
active (REM like); quiet (Nrem-like); Indeterminate
active sleep in 0-6 mos
mixed activity EEG, REM, twitch and phasic jerky movement
quiet sleep in 0-6 mos
high amplitude delta activity separated by intervals of lower mixed EEG activity, no eye movement, low amp EMG
total sleep amount in newborns
16-18 hrs per day
how many hours sleep episodes in newborns
2-4 h
polyphasic sleep
multiple 2-4h sleep episodes across day and nigt
in newborns, REM sleep makes up what percent total sleep
80% premature, 50% 0-2 mos
newborns can go directly from wake into
rem sleep
after 3 mos, infants can go directly from wake into
nrem
sleep cycles in newborns last
50-60 mins
chart of sleep cycles called a
hypnogram
rem sleep in newborns presents as
muscle twitch, smile, grimace, vocalization, stretch and movement
why so much rem sleep early in life
provedes stimulation essentil to maturation and devdevelopment of NS
