在它的脑部，看不到视觉中枢有特别明显的膨大，视觉中枢与处理视觉信号有关。

In the brain, we don't see tremendous expansion of the optic centers, the visual centers associated with processing visual information.

研究显示，相比内在的生理信号，人们更依赖视觉信号来决定停止使用某种产品。

Research shows that people rely on visual cues more than internal cues to stop consuming something.

因此，端点之类的视觉信号比自我满足感更能告诉我们在适当的时候停下来。

So, a visual cue, like an endpoint, is better at telling you the right time to stop than your own sense of satisfaction.

这正是因为大脑可以进行瞬时的视觉信号处理哪怕不经过任何的后台处理。

That is because the brain can carry out immediate visual processing even when it does not have time for any cognitive back-chatter.

当测试物体通过布莱叶盲文扫过测试者的指尖时，测试者的部分大脑显示出激烈的活动，处理视觉信号。

When test subjects swept their fingers over a line of Braille, they showed intense activation in the parts of the brain that typically process visual input.