David M. Lovinger1, Raymond F. Akers1, Robert B. Nelson1, Carol A. Barnes2, Bruce L. McNaughton2, Aryeh Routtenberg1
1Cresap Neuroscience Laboratory, Northwestern University, 2021 N. Sheridan Rd., Evanston, IL, USA
2Department of Psychology, University of Colorado, Boulder, CO, U.S.A.