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Welcome to the on-line forum associated with the Biology 202 at Bryn Mawr College. Its a way to keep conversations going between course meetings, and to do so in a way that makes our conversations available to other who may in turn have interesting thoughts to contribute to them. Leave whatever thoughts in progress you think might be useful to others, see what other people are thinking, and add thoughts that that in turn generates in you.

You're free to write about whatever came into your mind this week, but if you need something to get you started ... Our explorations of the sensory side of the nervous system have turned up evidence of that what we perceive is a construction of the brain, an informed guess based on presumptions of which we're not aware and that might be otherwise.  How strong do you feel the evidence is on this point?  In what ways does it help to better understand behavior?  What new questions follow from it?