title: Timing without a timer.
authors.affiliation: Department of Psychology, University of Massachusetts, Amherst 01002 jdonahoe@psych.umass.edu.
authors.forename: J W
authors.initials: JW
authors.lastname: Donahoe
authors.forename: J E
authors.initials: JE
authors.lastname: Burgos
mesh_terms: D000818:Animals; D003198:Computer Simulation; D008960:Models, Psychological; D009415:Nerve Net / Q000502:physiology*; D012055:Reinforcement Schedule; D013998:Time Perception / Q000502:physiology*