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Selective REM sleep deprivation (thing)
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(
thing
)
by
knatt
Wed Nov 05 2003 at 19:25:37
A sleeplab-technique developed to investigate the function of
REM sleep
.
Procedure
The subject is attached to sensors that continuously monitors his
EEG
(brain wave pattern),
EOG
(eye movements) and
EMG
(muscle tone).
the subject goes to
sleep
Whenever the subject enters
REM sleep
by, he is awakened. (The behavioral correlates of REM sleep are:
Rapid Eye Movement
s,
desynchronised EEG
and loss of muscle tone.
The procedure is repeated for the number of nights one wishes to study deprivation effects of.
Results
As the REM
sleep debt
grows, the subjects must be awakened an increasing number of times during one night, indicating that the body really wants its REM sleep.
If allowed to sleep normally one night after selective REM sleep deprivation, the subject will spend proportionally more time in REM-sleep than usually.
In depressed subjects there will usually be an antidepressant effect similar to that of common antidepressant medications, i.e. a lasting effect that takes a few weeks to develop. This is contrasted by the immediate antidepressant effect that one night of
total sleep deprivation
has; an effect that disappears as soon as the subject sleeps again.
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