In fact, if you draw a diagram of a person, what their body is corresponding to the amount of somatosensory cortex, you get something like that.

事实上,如果你画一张人体示意图,在这张示意图中,将躯体感觉皮层面积与身体相对应,那么你就会得到这样的一张图

耶鲁公开课 - 心理学导论课程节选

So, your tongue is closer to your jaw than it is to your hip in the body; so too in both the motor cortex and the somatosensory cortex.

所以相对于屁股,你的下巴在身体上距离你的舌头更近,而在运动皮层与感觉皮层上的位置,也是这样对应着的

耶鲁公开课 - 心理学导论课程节选