Bøger af Ian P. (Distinguished Research Professor Emeritus and Founder of the Centre for Vision Research Howard

Volume 3 addresses depth-perception mechanisms other than stereopsis. It starts by reviewing monocular cues to depth, including accommodation, vergence, perspective, interposition, shading, and motion parallax. Constancies, such as the ability to perceive the sizes and shapes of objects as they move are reviewed. The ways in which different depth cues interact are discussed. One chapter reviews information used to perceive motion in depth. Pathologies of depthperception, including stereoanomalies and albanism are reviewed. Visual depth-perception mechanisms through the animal kingdom are reviewed together with a discussion of the evolution of stereoscopic vision. The next chapter describes how visual depth perception guides movements of the hand and body. Thenext three chapters review non-visual mechanisms of depth perception, including auditory localization, echolocation in bats and marine mammals, the lateral-line system of fish, electrolocation, and heat-sensitive sense organs. The volume ends with a discussion of mechanisms used by animals to navigate.

Volume 1 reviews the basic mechanisms underlying visual depth perception. It starts with a review of the history of investigations of visual depth perception, from the ancient Greeks to the early 20th century. A review of the structure and physiology of the primate visual system is followed by a review of the evolution of visual systems and of the development of the mammalian visual system with an emphasis on neural plasticity. The development of perceptualfunctions, especially depth perception, in human infants is then reviewed. These chapters provide a foundation for a review of the effects of early visual deprivation on the development of amblyopia and of defects in visual depth perception. Volume 1 ends with reviews of the accommodation mechanism of thehuman eye and vergence eye movements.