@FutureNeuroGrad, I had a similar experience - talked to a PI at a Neuro event who was recruiting for his school, the PI seemed excited about getting me to go to that school and maybe work in his lab, even went down to visit and see his lab before applications were in. Got a straight-out rejection, no interview. It was weird - I suppose I could have been fooling myself about how much the PI wanted me to attend their program, but I think it's more likely that I just had an unfortunate "draw" in the application process for that school. Maybe another professor reviewed my app and didn't like it so much; maybe I didn't quite squeeze into a GPA / GRE cutoff (although I think my scores / GPA are pretty competitive). Very glad I have some other interviews though, I loved OSU when I visited last week and I'm anxiously waiting to see if I get an admit from there.