ABSTRACT
The mammalian brain analyzes features of the outer world in separate parts of the brain in parallel. Whereas there is a heated debate about the neural mechanisms of feature binding less is known about the spatio-temporal characteristics of binding itself. This chapter focuses on one of the very basic binding processes, namely feature fusion, using a vernier discrimination task. The offset independence of vernier cancellation in feature fusion is a mathematical singularity, ie dominance cannot be reversed by varying the offset of both the vernier and the anti-vernier simultaneously. This computation holds for all observers. However, a mask following the verniers reverses perceptual dominance revealing complex feature binding characteristics.
