How actions constrain the visual perception of space

Space perception is the ability to experience the layout of the environment (e.g., slope, distance, size). In the first part of this chapter, we present the Action Constraints Theories of space perception (ACT), which postulate that space perception depends on people’s action capabilities. In the second part, we review the main cognitive mechanisms that may account for the effects of action capabilities on perception. In the last part, we present the main alternative explanations of these effects.