Check out this link: http://musiccognition.blogspot.com/
It is a music cognition blog written by Henkjan Honing, Associate Professor of Music Cognition, University of Amsterdam. He’s definitely a heavy hitter in this department.
Fairly heady stuff, but written enough in layman’s terms for the average student to grasp. It focuses on more than just rhythm in music cognition, but it is certainly a great resource. I look forward to digging further into this one…