what is the typical sleep cycle
1.Waking State - Approx. 16 hours long
2.Sleep State - Approx. 8 hours long
•80% NREM
•20% REM
•Dreaming occurs in both states
What is REM
REM - rapid-eye movement
•high levels of mixed brain wave activity
•lots of eye movement
muscles are i...
Aice psychology - Sleeping and
dreams fully solved &
updated(100% accuracy)
what is the typical sleep cycle - answer 1.Waking State - Approx. 16
hours long
2.Sleep State - Approx. 8 hours long
•80% NREM
•20% REM
•Dreaming occurs in both states
What is REM - answer REM - rapid-eye movement
•high levels of mixed brain wave activity
•lots of eye movement
muscles are in virtual paralysis
what is NREM including the four stages - answer NREM - non-rapid
eye movement, involves stages.
•Stage 1 - light sleep, easily awakened.
•Stage 2 - light sleep, fairly easily awakened.
•Stage 3 - deep sleep, difficult to awaken.
•Stage 4 - very deep sleep, very difficult to awaken.
What did Dement and Kleitman study? - answer Dement and
Kleitman wanted to know at which stages do we dream in relation to
REM/NREM sleep, the strength of dream recall during those stages,
and eye movement in relation to dream content.
, what was dement and kleitman first aim - answer 1.AIM 1 - Does
dreaming occur during REM or NREM sleep?
what was dement and kleitman second aim - answer 2.AIM 2 - Can
participants accurately estimate the length of time they have been
dreaming?
what was dement and kleitman third aim - answer 3.AIM 3 - Do eye
movement patterns match dream content?
what was dement and kleitman fourth aim - answer 4.AIM 4 (sub-
AIM, Correlation) - Does the duration of REM sleep correlate with
the number of words (the narrative) in a reported dream?
what was the method of the study - answer Natural" laboratory
experiment using self-reports and observation.
what was the design - answer Design
Repeated Measure - Each participant slept and were woken at
various times and on various occasions (multiple=repeated).
what was the controls of the study - answer Controls
1.All participants were asked not to drink alcohol (a depressant) or
caffeine (a stimulant).
2.The way they were woken (a loud bell) and the way in which they
were recorded (tape recorder) were standardized.
what was the sample of the study - answer 1.Sample: Self-selecting
(volunteer). There's no details on how this sample knew about the
study or if they were students, however, because sleep is a
physiological process it is not important how they got the sample.
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