Dement and Kleitman (1954)

Georgia Stanley
Mind Map by Georgia Stanley, updated more than 1 year ago
Georgia Stanley
Created by Georgia Stanley almost 5 years ago


A-level Psychology Mind Map on Dement and Kleitman (1954), created by Georgia Stanley on 04/19/2015.

Resource summary

Dement and Kleitman (1954)
1 sample
1.1 opportunity sampling
1.2 9 Pts
1.2.1 7 adult males
1.2.2 2 adult females
1.2.3 5 were studied intensivley
1.3 why were some of the Pts. not studied intensively?
1.3.1 to back up the findings of the main 5
2 Aim
2.1 to gain some objective physiological data about sleep and dreaming using physiological measures and taking as scientific an approach as possible
3 key terms
3.1 EEG; electroencephalograph
3.2 EOG; electro-oculogram
3.3 EMG; electromyogram
4 REM sleep involves:
4.1 - hard to wake people up
4.2 the body is paralysed
4.2.1 to prevent people from moving and acting out their dreams
5 method/ design
5.1 laboratory experiment
6 procedure
6.1 - eat normally; no cafine/ alcohol
6.2 went to bed in a quiet, dark room
6.3 - electrodes attached to face + scalp
6.4 - 2+ electrodes near Pts. eyes to record changes by eye movement
6.5 - 2 or 3 electrodes attached to scalp to record brain activity
7 controls
7.1 - no communication between experimenter and sleeper until after they told their dream content
7.2 - not told whether; REM or NREM sleep
7.3 - no caffine/ alcohol
7.4 woken by a door bell
8 ethical problems
8.1 deception
8.1.1 - told awakened when he was dreaming but awakenings were random
9 what can be conducted from the study?
9.1 - is a relationship between REM and dreaming.
9.1.1 eye movement + dream content
9.2 sleep patterns show a cycle of 4 stages of sleep and REM/NREM
10 hypothesis/ design
10.1 1. There will be a significant association between REM sleep + dreaming
10.2 2. There will be a significant positive correlation between the estimate of the duration of dreams and the length of eye movement
10.3 3. There will be a significant association between the pattern of eye movement and the context of the dream
11 results
11.1 1
11.1.1 subjects were woken either in REM or NREM 2 Pts were woken randomly 1 pts; woken 3 times in REM then 3 times in NREM 1pts told he was only woken in REM but woken randomly 1pts was woken whenever the experimenter wanted to recall dreams most = REM
11.2 2
11.2.1 Pts woken randomly either 5 or 15mins into REM Pt. was asked o say whether they had been dreaming for 5 or 15 mins woken randomly at 1 of these 2 times (5or15) estimates = accurate found positive correlation
11.3 3
11.3.1 vertical eye movement = standing at the bottom of a tall cliff
11.3.2 horizontal EM = watching 2 people throwing tomatos at each other
11.3.3 both = bert + ernie = table tennis
11.3.4 Little/no = driving a car + staring = fast car from left
11.3.5 significant association = YES
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