Lecture: Dr. Christian Wallraven (Seoul): Staying in Touch: Visual and Haptic Processing of Shape in the Brain
Monday, October 26, Dr. Christian Wallraven from the Cognitive Systems Lab at the Department of Brain & Cognitive Engineering of Korea University, will give a DepKo talk titled:
"Staying in touch: visual and haptic processing of shape in the brain"
The talk will be held at the MRZ Seminar Room (Spemannstrasse 41), at 11:15. You are cordially invited to attend.
Already starting at birth, humans integrate information from several sensory modalities in order to form a representation of the environment - a good example of this is a baby who is exploring objects and interacting with them thereby receiving multisensory input. The combination of visual and touch information is one of the most fundamental sensory integration processes, as touch information (such as body-relative size, shape, texture, material, temperature, and weight) can easily be linked to the visual image, providing a grounding for later (visual) recognition. Previous research on such integration processes has so far mainly focused on low-level object properties (such as curvature, or surface granularity) such that little is known on how the human actually forms a high-level multisensory representation of objects. Here, I will review research from our lab that investigates how the human brain processes shape using input from vision and touch. Using a large variety of novel, 3D-printed shapes we were able to show that touch is actually equally good at shape processing as vision, suggesting a common, multisensory representation of shape. The main part of the talk will focus on a series of imaging experiments (using anatomical, functional, and white-matter analyses) that chart the brain networks that process this shape representation.
Host: Prof. Heinrich H. Bülthoff
- Max Planck Institute for Biological Cybernetics