Dr. Rob van Lier deludes us with his visual illusions, in order to understand the ‘basket full of tricks’ our visual system uses.
The visual world that we all know so well is largely a creation of the brain. Take for example the colors that we experience; they are mental properties - light itself is not colored. Whatever we see, its appearance is the result of smart and rapid perceptual processes. To create the visual scenery with recognizable objects and faces, the visual system seems to use a 'basket full of tricks'.
One way to unravel these tricks is to develop and study visual illusions, and this is one of the specialties of Rob van Lier. Time and again it appears that relatively simple stimulus manipulations reveal new extraordinary perceptual output. Rob van Lier will discuss various illusory appearances and show how they help to understand the underlying mechanisms of perception.Rob van Lier is Associate Professor at the Donders Institute at Radboud University Nijmegen. His research concerns issues of visual perception and visual awareness. He investigated, among others, both low-level mechanisms as well as influences of knowledge, attention, and intention on visual awareness. He once won the ‘Best Illusion of the Year Contest’. This year he came in second.