Tychmanowicz K, Matysiak E, Pawłowski G
Kliniki Neurochirurgii ICMDiK PAN, Warszawie.
Neurol Neurochir Pol. 1992 Sep-Oct;26(5):685-93.
In the model of experimental occlusion of superior sagittal sinus (SSS) in 6 cats, the authors examined cerebral cortex activity by means of visual evoked potentials (VEP). They found shortening of latency of P2 wave potential in relation to the control by 5.5-13.3 msec, appearing after 4-6 hours following occlusion. Simultaneous cerebrospinal fluid pressure measurement indicated an increase in pressure following SSS occlusion from the control medium value 6.8 mmHg to 12-13 mmHg. Visual cortex in cat (area 17) is situated along the posterior portion of SSS. The occlusion of this vessel results in local haemostasis, which is likely to affect the physico-chemical properties of visual cortex cells, especially in the slow conducting system X (X cells can be found exclusively in area 17). The partial disappearance of this system activity results in reducing the signal and noticeable shortening of latency to peak P2 wave of VEP.
在6只猫的上矢状窦（SSS）实验性闭塞模型中，作者通过视觉诱发电位（VEP）检测大脑皮层活动。他们发现，与对照组相比，闭塞后4 - 6小时出现的P2波潜伏期缩短了5.5 - 13.3毫秒。同时进行的脑脊液压力测量表明，SSS闭塞后压力从对照的平均值6.8 mmHg升高至12 - 13 mmHg。猫的视觉皮层（17区）位于SSS的后部。该血管的闭塞导致局部止血，这可能会影响视觉皮层细胞的物理化学性质，特别是在慢传导系统X中（X细胞仅在17区发现）。该系统活动的部分消失导致信号减少以及VEP的P2波峰值潜伏期明显缩短。
