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V. S. Ramachandran’ lecture, “Phantoms in the brain”, gave me a kind of feeling that brains are not just organs of humans’ bodies but controllers of human beings. Brains are like play-writers while human beings are performers who think and act follow the plots created by play-writers. It seems like that the brain interprets the stimulation and then sends signals to the nerve cells located near the tissues and organs where the brain wants the actions and behavior to be done. When a person cannot behave as normally as others do, something wrong happens to his brain, such as the brainstem, limbic system and fusiform gyrus. (See, the play-writer gets mad and design crazy and abnormal actions for performer to act.) 

I wonder which role human beings’ proud consciousness plays here and which part of a complete reflex arc is controlled by or derived from consciousness? I ask this not because I doubt the existence and superiority human. I know that I must lose some important logic steps here but I cannot figure them out. I just feel confused. 

Another interesting point of view that I heard from my friend next door is that we can conceive something’s existence because of the complex interpretations and syntheses of brain. For example, we know that a desk is here, because we can see it and the touch it, senses constructed in our brains. The truth is we never know whether a desk (the reality) really exists.