The emergence of objects

08.02.2012 - 18:00
08.02.2012 - 20:00
Lecturer

Prof. Dr. Michael Herzog

École Polytechnique Fédérale de Lausanne

In the typical textbook view on vision, objects are processed by fast, feedforward computations along the visual hierarchy. Object recognition is immediate - a snapshot in the stream of conscious perception. Although reactions to objects, e.g. reflexes or animal detection, can indeed be fast, I will espouse the view that object recognition is slow. Using trans-cranial magnetic stimulation (TMS) and EEG, I will show how objects emerge during an unconscious processing period of approximately half a second. During this period, features of elements are carefully stored in iconic memories before they are integrated into objects. Feature integration is based on, possibly, in-build Gestalt laws. Computer simulations will illustrate the dynamics of object emergence.