Other Websites The “Purple Perils” of J. J. Gibson. Cognitive, Linguistic & Psychological Sciences – Brown U Center for the Ecological Study of Perception and Action (CESPA) Cincinnati Perceptual – Motor Dynamics Lab Center for Complex Systems and Brain Sciences – Florida Atlantic Haskins Laboratories Indiana Perception / Action Lab; Geoff Bingham Affordance Perception – Action Lab (APAL), University of Minnesota Action and Perception Dynamics Montpellier, France Dynamics of Action, Perception & Cognition Arizona State; Nia Amazeen Laboratory of Motor Behavior Technical University of Lisbon; João Barreiros, Pedro Passos, Rita Cordovil Physics of Complex Systems – Homeokinetics Society for Chaos Theory in Psychology