775339
Description
Mind Map by leonie1997, updated more than 1 year ago
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Created by leonie1997
about 11 years ago
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Dement and Kleitman
- 1957
- Hypothesis:
- 1. Participants woken during REM
sleep are more likely to recall dreams.
- 2. Participants woken after 5 or 15
mins will be able to say how long they
have been dreaming.
- 3. Eye movement will link to
the content of recalled dream.
- 1. Participants woken during REM
sleep are more likely to recall dreams.
- Variables:
- Independent:
- Whether woken in REM sleep
or non-REM sleep.
- Whether woken
after 5 or 15 mins.
- Movement of eyes
- Whether woken in REM sleep
or non-REM sleep.
- Dependent:
- Whether dreams recalled.
- Estimate the length of dreaming.
- Content of dream.
- Whether dreams recalled.
- Independent:
- Participants:
- Nine adults: seven male, two female.
- Five studied intensively, four
studied for minimal data to
confirm data/findings from five
studies intensively.
- Nine adults: seven male, two female.
- Method:
- Controlled laboratory conditions
- reported to lab before usual
bedtime.
- Told to avoid
caffeine/alcohol. Went to
bed in dark quiet room.
- EEG used to amplify and
record signals of electrodes
on pps face and head.
- At various times during the night
(during both REM and non-REM
sleep) pps were awakened to test
their dream recall.
- Woken by loud doorbell
ringing next to their head.
- Woken by loud doorbell
ringing next to their head.
- Spoke into tape recorder next to bed
about whether or not they had been
dreaming and then, if they could, to
report the content of their dream.
- Controlled laboratory conditions
- reported to lab before usual
bedtime.
- Results:
- Hypothesis 1. Woken during
REM 152 out of 191 recalled
dreams. Woken during
non-REM 11 out of 160
recalled dreams.
- Hypothesis 2. Woken after 5
mins of REM 45 out of 51
correctly guessed the amount of
time dreaming. Woken after 15
mins of REM 47 out of 60
correctly guessed the amount of
time dreaming.
- Hypothesis 3. Mainly verticle eye movement
observed 3 times, dreams about standing at
bottom of cliff looking at climbers, climbing
ladders looking up and down, throwing
basket balls at nets.
- Mainly horizontal, once, watching
people throw tomatoes at each
other.
- Both vertical and horizontal 21
times, looking at close objects,
talking with groups of people, looking
for something.
- Very little movement, 10 times, watching
things at a distance, staring at an object.
- Very little movement, 10 times, watching
things at a distance, staring at an object.
- Both vertical and horizontal 21
times, looking at close objects,
talking with groups of people, looking
for something.
- Mainly horizontal, once, watching
people throw tomatoes at each
other.
- Hypothesis 1. Woken during
REM 152 out of 191 recalled
dreams. Woken during
non-REM 11 out of 160
recalled dreams.
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