Motion-induced perceptual extrapolation of blurred visual targets

In the motion-extrapolation hypothesis, the visual system can extrapolate t he instantaneous position of a moving object from its past trajectory. The existence of such a mechanism in human vision has been intensely debated. H ere, we show compelling perceptual extrapolation of both first- and second- order moving stimuli, the magnitude of which depends on blurring of the vis ual target. The spatiotemporal characteristics of the extrapolation can be quantitatively accounted for by a simple model based on temporally biphasic neuronal response, a property widely observed among sensory neurons. Thus, motion-induced perceptual extrapolation exists in human vision, and spatia l blurring is an important factor in the interaction between motion and per ceptual localization.