Results

Contrast sensitivity during the initiation of smooth pursuit eye movements Acknowledgments: We thank Stefanie Bader, Nadine Lipke and Maria Höfer for collecting data and Martin Stritzke for beeing subject. This work was supported by the DFG Forschergruppe FOR 560 “Perception and Action ” and the DFG Graduiertenkolleg GRK 885 “NeuroAct”. Eye movements challenge the perception of a stable world by inducing strong retinal image motion, resulting from an acceleration of the eyes. For saccades there is strong evidence that this perceptual stability is accomplished by saccadic suppression [1]. Here we explore whether suppression also occurs during smooth pursuit initiation. In a 2AFC design we investigated the sensitivity for threshold-level stimuli during the initiation of smooth pursuit and during saccades. Eye movements were elicited by 4 different target conditions: step-ramp [2]