The book provides a completely up-to-date, in-depth examination of visual perception and constancy, keystone subjects of perceptual psychology. In a series of original essays, 15 leading members of the international scientific community report on their investigations. Using new techniques, new information, and new methods of analysis, they offer fresh insights into the important problems in the field. The first chapter offers an interesting historic overview of the field, and the last chapter brings into focus a variety of methodological, empirical, and theoretical questions that recur in the essays. By presenting the work of a widely dispersed group of investigators working in laboratories around the world, a catholicity of views and modes of analysis are achieved. This book will be of value to experimental psychologists, sensory physiologists, students, and investigators in the field of perception. Historical Introduction to the Constancies/ W.Epstein; Visuomotor Coordination in Visual Direction and Position Constancies/ W.Shebilske; The Constancies in Object An Algorithm Processing Approach/ S.Ebenholtz; Stereoscopic Depth Constancy/ H.Ono - J.Comerford; The Metric of Visual Space/ W.C. Gogel; Analysis of Causal Relations in the Perceptual Constancies/ T.Oyama; Instructions and Perceptual Constancy Judgements/ V.R. Carlson; Illusions and Constancies/ S.Coren; Constancies in the Perceptual World of the Infant/ R.H. Day; ln Defense of Unconscious Inference/ l.Rock; Spatial Constancy and Motion in Visual Perception/ G.Johansson; Lessons in Constancy from Neurophysiology/ W.Richards; Observations Concerning the Contemporary Analysis of Constancy/W. Epstein