title: Introduction to the festschrift.
authors.forename: Douglas S
authors.initials: DS
authors.lastname: Ramsay
authors.forename: Gerard P
authors.initials: GP
authors.lastname: Smith
mesh_terms: D001519:Behavior; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D010827:Physiology / Q000266:history; D011584:Psychology / Q000266:history