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Attention and Eye Movements

Following the premotor theory of attention, we take the view that attention and eye movements are inextricably linked, so that every shift in attention gives rise to a plan to make a saccadic eye movement. This movement is often suppressed, however, by a fixation system. This project has the goal of deriving and using models of the link between attention and eye movements to allow the tracking of attention. To date, we have constructed, using Matlab, a detailed neural network model of the human Superior Colliculus, a structure in the brain which controls the generation of saccadic eye movements. This model allows us to explore the interaction between fixation and attention in the generation of saccadic eye movements. We have begun preliminary studies of some hypotheses regarding observable correlates of attention shifts in motor activities of subjects viewing computer displays.

Z. Hafed, J.J. Clark
 


Annual Report

Mon Jun 26 21:22:20 GMT 2000