The Influence of High Level Vision on Early Visual Processing in the Brain

Tuesday, November 14, 2000 - 1:15pm - 2:00pm
Keller 3-180
Tai-Sing Lee (Carnegie-Mellon University)
In this talk, I will describe a series of single-unit neurophysiological experiments on awake behaving monkey to investigate the role of the higher level vision such as object recognition and attention on early visual processing mechanisms in the early visual cortex. The results of these experiments challenged many classical views on the role of early visual cortex in visual processing, the nature of information flow in the visual cortex. They lead to a view that suggests the neural machinery in the early visual cortex is highly adaptive, and highly interactive, coupled tightly with higher order processes through massive feed forward and feedback connections between the cortical areas.