The emergence of objects
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.