In my research I investigate perceptual processes from the level of simple artificial stimuli up to complex object and scene perception, combining psychophysical experiments and computational modeling. Currently I have three main research foci: First, to develop a computationally efficient, image-based model of early spatial vision. Second, to uncover the critical features observers use in complex perceptual tasks. Third, I explore synergies between machine learning and psychophysics in categorization and, recently, causality.