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Smooth pursuit eye movements and the segregation of coherent motion

Acknowledgments: We thank our subjects and Jill Wagner for help with data collection. This work was supported by the DFG Forschergruppe FOR 560 “Perception and Action”. Motion coherence was reflected in pursuit initiation (latency & acceleration), but not in steady state pursuit (velocity gain). Higher coherence resulted in shorter latency and faster acceleration. Prolonged exposure to high coherent motion seemed to diminish the advantage of high coherence, resulting in lower acceleration. This can be explained by motion adaptation, which has been shown to influence the initiation of smooth pursuit eye movements4,5.