A

Upper motor system
B

Lower motor system
1

Movement initiation
Limbic, orbitofrontal
2

Movement planning
Associative and motor cortex
3

Movement plan reconsideration
Cerebellum, basal ganglia
4

Movement Execution
Precentral gyrus
C

Segmental, spinal movement execution
A
REM
B
SWS (Slow wave sleep)
1
Entering sleep
2
Superficial sleep
3
Deep sleep (SWS)
4
Very deep sleep (SWS)
Violent movements may be observed during…
REM phase
This trace would be seen in…

Excitable tissues
Time period indicated

10msec