The nature of sleep and lifespan changes 3.0 / 5 based on 1 rating ? PsychologySleepA2/A-levelAQA Created by: Megan BillyealdCreated on: 19-11-12 13:44 Infancy Sleep a lot more than children Have different sleep patterns and different stages of sleep Sleep about 16 hours a day but their sleep is not continuous Usually wake up every hour or so because their sleep cycles are shorter than the adult 90 minute cycle They have quiet sleep and active sleep - these are immature versions of SWS and REM sleep 1 of 6 Infancy Continued There is more active sleep than adult REM sleep About half of infant sleep is spent in active sleep Infants enter sleep through an initial period of light sleep - after twenty minutes they gradually enter deep sleep. By the age of six months a circadian rhythm has been established. By age one infants are sleeping mainly at night with one or two naps during the day periods of sleep lengthen - reduction of the amount of REM sleep 2 of 6 Childhood By the age of five children have EEG patterns that look like those of an adult Still sleeping about 12 hours per day Having more REM activity - 30% of total sleep time Boys sleep slightly more than girls Not uncommon for children to experience a variety of sleep disorders 3 of 6 Adolescence Need for sleep increases - 9-10 hours a night Circadian rhythms also change so that teenagers feel naturally more awake later at night and have more difficulty getting up earlier - Phase delay REM sleep in males is sometimes accompanied by ****** and *********** which is significantly less likely at other ages 4 of 6 Adulthood "Normal" adult sleep - 8 hours per night 25% in REM sleep Childhood sleep disorders are rare increasing frequency of other sleep disorders such as insomnia 5 of 6 Old Age Total sleep time remains about the same Older people have difficulty going to sleep and wake up more frequently They may have a nap during the day to satisfy their sleep needs REM sleep decreases to about 20% SWS reduced to as little as 5% Older people experience phase advance - feeling sleepier early in the evening and wake up earlier 6 of 6
Describe and evaluate research into the nature of sleep including lifespan changes (24 marks) 0.0 / 5
Comments
No comments have yet been made