One Answer

    I think if you are asking this question, then a cursory retelling of what I have heard from neuroscientists and embryologists will not be enough for you (vision and intersection were discussed in this regard). But, still…

    The emergence of two hemispheres of the brain is evolutionarily related to bilaterality.�

    We crawl along the bottom of the reservoir, and in addition to the front-back orientation of the body, the top-bottom orientation and the left-right orientation appear. There are two halves of the body that need to be managed separately. Two receptors to determine left-right, top-bottom, process the signal of each of the receptors and give the command to cut one or the other side of the body.

    And in order for everything to work in concert, you need interaction between the two centers of processing and command perception. The analysis should be general, and the submission of commands should be separate.�

    Therefore, the reality is more complicated: some paths come straight, some intersect connecting, some intersect without connecting. For example, here:�bsmy.ru

    For example, vision. The eyes should be controlled separately, but give a general picture. Therefore, look, there are separate visual paths, and there are also connected ones. And the connection by the shortest path is an intersection.

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