Lu Sperling [Vision Res. 35, 2697 (1995)] proposed that human visual motion perception is
served by three separate motion systems: a first-order system that responds to moving …

A powerful paradigm (the pedestal-plus-test display) is combined with several subsidiary
paradigms (interocular presentation, stimulus superpositions with varying phases, and …

Current theories of second-order motion perception postulate that such motion is detected
by either a high-level mechanism which computes the temporal correspondences between …

This is a survey of psychophysical studies of motion perception carried out mainly in the last
10 years. It covers a wide range of topics, including the detection and interactions of local …

Starting with the experiments of Ramachandran and Gregory (Nature, 275, 55–56, 1978),
several psychophysical studies in apparent motion (AM) have established that the …

This article describes further evidence for a new neural network theory of biological motion
perception. The theory clarifies why parallel streams V1→ V2, V1→ MT, and V1→ V2→ MT …

We applied the external noise plus attention paradigm to study attention mechanisms
involved in concurrent first-order and second-order motion perception at two spatial …

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A study is reported of the role of luminance and contrast in resolving ambiguous apparent
motion (AM). Different results were obtained for the short-range (SR) and the long-range …

A quantitative model is developed to predict the perceived direction of moving two-
dimensional patterns. The model incorporates both a simple motion energy pathway and a …