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Old 05-14-2015
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Default Changes in sleep Cycle in Depression

How do we interpret the REM changes in depressive people

↓REM latency = they fall off to sleep quickly
↓slow wave sleep = ?
↑REM in early cycle =?
↑Total REM= ?
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Old 05-15-2015
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Quote:
Originally Posted by zeeviq View Post
How do we interpret the REM changes in depressive people

↓REM latency = they fall off to sleep quickly
↓slow wave sleep = ?
↑REM in early cycle =?
↑Total REM= ?
Decreased REM latency means that the patient will "reach" REM sleep earlier than a healthy person would.

Decreased slow wave sleep means that the total amount of slow wave sleep is decreased (meaning that probably something else is increased (most likely REM))

Increased REM in early cycle means that there will be more REM sleep in earlier sleep cycles (usually there is more slow wave and less REM in earlier cycles and it switches around by the second half of the night, however, in this case REM is increased starting from the early cycles).

Increased total REM means that there will more REM sleep in total during the whole duration.

I hope thats what you were asking.

It really helps to review the sleep architecture stuff from Kaplan's Behavioral Science Notes. All these concepts are well explained.
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