Nijmegen/Nederland:
prof. Floris de Lange  
foto: Bert Beelen

Floris de Lange
Professor of Predictive Perception and Cognition, Radboud University, Nijmegen, Netherlands, and Principal Investigator of the Predictive Brain Lab at the Donders Institute, Netherlands.

How are expectations and sensations combined in the sensory brain?

Perception and perceptual decision-making are strongly facilitated by prior knowledge about the probabilistic structure of the world. While the computational benefits of using prior expectation in perception are clear, there are myriad ways in which this computation can be realized. In my talk, I will discuss recent observations from my lab into how this process may be neurally implemented. Specifically, I will: 1) provide evidence for the separation of priors and likelihood in different layers of the cortex; 2) examine the integration of priors and likelihood in the context of the word superiority effect; 3) show that attention mediates this balance by increasing, rather than reducing, the effect of priors.

 

Biosketch

Floris de Lange and his research group study how our brain allows us to perceive the world around us. Solving this complex puzzle involves combining psychology and biology, mathematics and physics. De Lange believes science communication is essential to the pursuit of science. He is active in the media and gives public lectures, in both cases in collaboration with artists and others. In 2012, he received the Heineken Young Scientists Award for Cognitive Science for his research on visual perception and motorial imagery.