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Control of Gaze in the Context of Behavior
Dr. Mary M. Hayhoe
Monday, May 04, 2015, 12:00pm - 07:00pm
University of Texas, Austin, Department of Psychology and Center for Perceptual Systems
In natural behavior, visual information is actively sampled from the environment by a sequence of gaze changes. The timing and choice of gaze targets and the accompanying attentional shifts are intimately linked with ongoing behavior. Nonetheless, modeling the deployment of gaze has been very difficult because it depends on characterizing the underlying task structure. One approach, consistent with observations of natural behavior, is to decompose complex behaviors into modular components or sub-tasks. The role of gaze is postulated to provide task-relevant information that is rewarding to the agent, with gaze targets selected on the basis of expected reward and uncertainty about environmental state. I will review the evidence in support of these ideas and their potential for understanding momentary sensory-motor decisions in the context of behavior.