Animal Behavior Graduate Group, University of California, Davis, Davis, CA, 95616 USA

California National Primate Research Center, University of California, Davis, Davis, CA, 95616 USA

Department of Psychology, University of California, Davis, One Shields Avenue, Davis, CA, 95616 USA

Department of Neurobiology, Physiology, and Behavior, University of California, Davis, CA, 95616 USA