[Visual evoked potential from dura in rats].
Visual evoked potentials (VEPs) were recorded from 8 different points (from points A and B near the bregma to points G and H near the occipital bone) of the dura under parietal bone in rats. The study was performed with 68 adult male Slc: Wistar/ST rats weighing 259.9-298.0g. VEPs recorded from the dura had a large negative component with a peak around 45 msec (N1), a large positive component with a peak around 75 msec and a large negative component with a peak around 120 msec (N2). Points A and B were not suitable for recording of the VEPs because some rats showed no N2 peak. The amplitude of peaks N1 to P at point E, upper the left optic layer of the superior colliculus, was higher than those from other points. Point E was the best position for recording of the VEP from dura in Slc: Wistar/ST rats.
Kiyosawa
I
I
Kissei Pharmaceutical Co., Ltd., Nagano, Japan.
Aoki
M
M
Imamura
T
T
Naito
J
J
Saito
T R
TR
Takahashi
K W
KW
D000818:Animals; D004388:Dura Mater / Q000502:physiology*; D004558:Electric Stimulation; D005074:Evoked Potentials, Visual; D008297:Male; D051381:Rats; D017208:Rats, Wistar