Preface. Why did I write this book?\n1. Conceptual and Philosophical Issues.\nWhat does it mean to assert that an observer perceives?\n2. Psychophysical Methods.\nWhat scientific methods can be used to ask an observer what is being perceived?\n3. The Perceptual Environment. \nWhat is out there to be perceived?\n4. Sensing the Environment.\nWhat mechanisms are used to sample. image. and transduce physical stimulation from the environment?\n5. Perceptual Processing I. Biological Hardware.\nWhat properties of neural tissues support perceptual processing in man and monkey?\n6. Perceptual Processing II. Abstractions. \nHow can perceptual processing be characterized and modeled as flow of abstract information?\n7. Color Vision.\nHow are objective wavelengths of light transformed into secondary qualities of percepts called colors?. \n8. Form Vision.\nHow is information about shapes of objects transferred from the environment to our percepts?\n9. Perception of three-dimensional Space. \nHow do we use information derived from one or both eyes to perceive the spatial layout of our surroundings?\n10. Dynamic \'How\' Perception.\nHow do we perceive and react to change and motion? \n11. Perceptual Development.\nWhere does the information come from that allows perceptual systems to become wired together in such a manner that they can perceive?\n12. Higher Order and Subjective Aspects of Perception.\nHow are low-level stimulus properties transformed into high-level qualities of Percepts?\nIndex.