From: Assessment of the septal area neuronal activity during penile erections in rapid eye movement sleep and waking in the rats
Erections during REM sleep
Erection during waking
Type
Sub-type
n
Total
E
E1
14
36##
1
6
E2
17
3
E3
5
2
I
I1
12
24
7
21***
I2
9
10
I3
4
NR
40
33
All types
100
60