Takeuchi T, Suzuki M, Sitizyo K, Saito T
Department of Veterinary Physiology, Faculty of Agriculture, Tottori University, Japan.
Jpn J Physiol. 1993;43(6):809-15. doi: 10.2170/jjphysiol.43.809.
The visual evoked potential (VEP) was recorded in six Japanese Black calves from 1 to 10 weeks after birth. The VEP waveform recorded at the 1st week was consisted of three positive and three negative peaks. The VEP showed little postnatal changes except for the shortening of the peak latencies of P1 and N3 and the increase of the peak-to-peak amplitudes of P1-N1 and P2-N2 (significant between the 1st and 10th week of age). The visual function associated with generation of the flash VEP is suggested to have almost developed at birth in the calf. The postnatal measurement of the VEP would be useful for evaluating the neurologic disorders of the visual system in young calves.
在6头日本黑毛犊牛出生后1至10周记录视觉诱发电位（VEP）。出生第1周记录的VEP波形由三个正峰和三个负峰组成。除了P1和N3峰潜伏期缩短以及P1 - N1和P2 - N2峰 - 峰值振幅增加（在1至10周龄之间有显著变化）外，VEP在出生后变化不大。提示与闪光VEP产生相关的视觉功能在犊牛出生时几乎已发育完成。出生后VEP的测量对于评估幼龄犊牛视觉系统的神经疾病将是有用的。
