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.
https://en.wikipedia.org/wiki/Henkjan_Honing
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…
David Aldridge's Drumming Blog 