1 How Do We Direct Our Actions in Space?.- Different Modes of Processing Visual Spatial Information.- Role of the Extraretinal Signal in Perceptual Stability of Visual Space.- The Paralyzed Eye Situation as a Cue for Understanding Visuomotor Localization.- The Role of Registered vs. Actual Gaze Position in Guiding Behavior.- 2 Maintenance of Equilibrium During Movement.- How Is Body Posture Established?.- How Do Movement and Posture Interact?.- Coordination Between Posture and Movement in the Quadruped.- Central Organization of Postural Changes.- Conclusions.- 3 Neural Mechanisms of Visual Orientation in Rodents: Targets Versus Places.- Visually Guided Movements Toward Targets.- Visually Guided Movements Toward Places.- Conclusions.- 4 Role of the Monkey Superior Colliculus in the Spatial Localization of Saccade Targets.- Role of the Superior Colliculus in Saccadic Eye Movements.- Models of the Saccadic Eye Movement System.- Neural Representations of Saccade Targets.- 5 Interface of Visual Input and Oculomotor Command for Directing the Gaze on Target.- Internal Medullary Lamina.- Experimental Examination of the Hypothesis of Adequate Response.- Visual Responses to Target Location in Space.- Discussion.- 6 Coordination of Eye-Head Movements in Alert Monkeys: Behavior of Eye-Related Neurons in the Brain Stem.- Experimental Method.- Behavior of PRF Preoculomotor Neurons During Eye-Head Coordination.- Coordination of Head and Eyes in the Saccadic Changes of Gaze.- Conclusions.- 7 Contribution of Eye Movement to the Representation of Space.- How Is Visual Direction Given?.- What Is the Source of Knowledge of Eye Position?.- Conclusions.- 8 Control of the Optokinetic Reflex by the Nucleus of the Optic Tract in the Cat.- Functional Anatomy of NOT.- Relationship Between NOT Output and OKN.- Conclusions.- 9 Development of Optokinetic Nystagmus and Effects of Abnormal Visual Experience During Infancy.- Human OKN Development.- Other Studies.- Future Research.- 10 Spatially Detl3Ä