REM Stages Flashcards
1
Q
REM Stage Durations (minutes)
A
1 to 7, 10 to 25, 20 to 40, 10 to 60
2
Q
REM Stage Repetitions (minutes)
A
Uninterrupted = sent to NREM2, minimal time
10-25 minutes, increasing in length each stage repetition
20-40 minutes, less when repeated
Increases in length over night, few minutes to hour
3
Q
At what REM stage do muscle twitches begin?
A
NREM2
4
Q
At what REM stage are muscles most relaxed?
A
NREM3
5
Q
Describe eye movement during REM.
A
Rapid eye movement, visual information not transmitted to brain
6
Q
Describe muscles during REM.
A
Temporarily paralysed (atonia)
Except for eye and breathing muscles
