sleep walking 0.0 / 5 ? PsychologySleepA2/A-levelAQA Created by: Abby Foster-TurnerCreated on: 12-05-14 12:30 Sleep Disorders, Sleep walking: When? Usually occurs during NREM stages 3 and 4. EEG reveals that the person is partly awake. Beta waves are present. More common in children. 1 of 7 Sleep Disorders, Sleep walking: Explan 1? Evidence that genes play a part from Twin studies; BROUGHTON found that 1st degree relatives of sleepwalkers much more risk themselves. 2 of 7 Sleep Disorders, Sleep walking: Explan 1 evaluation? LECEDREUX: twin study and found MZ concordance for SW was 50% while DZ only 10-15%. However not 100% must be other factors. What genes? 3 of 7 Sleep Disorders, Sleep walking: Expan 2? OLIVIERO: suggest children and some adults more sleepwalking because part of brain that stops motor activity in sleep not fully developed. 4 of 7 Sleep Disorders, Sleep walking: Explan 2 evaluation? Study looking at neural circuits that control movement in Sleep walking adults showed signs of immaturity. 5 of 7 Sleep Disorders, Sleep walking: Explan 3? A range of enviro factors play a part such as stress, alcohol use and sleep deprivation. 6 of 7 Sleep Disorders, Sleep walking: Explan 3 evaluation? ZEDRA: evaluated 40 sleepwalkers at a sleep centre, deprived them. More SW behaviours if no sleep for 25hrs. Deprivation=SW. 7 of 7
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