Contents: Part I:Phenomena, Problems, & Terms.R. Warren, Preliminary Questions for the Study of Egomotion. D.H. Owen, Lexicon of Terms for the Perception and Control of Self-Motion and Orientation. Part II:Visual Aspects.J.J. Koenderink, Some Theoretical Aspects of Optic Flow. K. Nakayama, Properties of Early Motion Processing: Implications for the Sensing of Egomotion. V. Cornilleau-P r s, J. Droulez, Three-Dimensional Motion Perception: Sensorimotor Interactions and Computational Models. L. Wolpert, Field-of-View Information for Self-Motion Perception. G.J. Andersen, Segregation of Optic Flow Into Object and Self- Motion Components: Foundations for a General Model. Part III:Vestibular & Multisensory Aspects.A.J. Benson, Sensory Functions and Limitations of the Vestibular System. A.H. Wertheim, Visual, Vestibular, and Oculomotor Interactions in the Perception of Object Motion During Egomotion. T. Mergner, W. Becker, Perception of Horizontal Self-Rotation: Multisensory and Cognitive Aspects. Part IV:Skill & Control Aspects.H. Mittelstaedt, Basic Solutions to the Problem of Head-Centric Visual Localization. D.H. Owen, Perception & Control of Change in Self-Motion: A Functional Approach to the Study of Information and Skill. J.M. Flach, G. Lintern, J.F. Larish, Perceptual Motor Skill: A Theoretical Framework. W.A. van de Grind, Smart Mechanisms for the Visual Evaluation and Control of Self-Motion. R.J.A.W. Hosman, J.C. van der Vaart, Motion Perception and Vehicle Control. G.L. Zacharias, An Estimation/Control Model of Egomotion. Part V:Special Environmental Aspects.H.E. Ross, Orientation and Movement in Divers. D.N. Lee, Getting Around With Light or Sound. G. Jansson, Non-Visual Guidance of Walking. L.R. Young, M. Shelhamer, Weightlessness Enhances the Relative Contribution of Visually-Induced Self-Motion. Part IV:Self-Motion and the Perception & Control of the Environment.J.S. Lappin, Perceiving the Metric Structure of Environmental Objects from Motion, Self-Motion and Stereopsis. R.E. Shaw, P.N. Kugler, J. Kinsella-Shaw, Reciprocities of Intentional Systems.