A neural field model for saccade planning in the superior colliculus: speed-accuracy tradeoff in the double-target paradigm

Recent experimental and theoretical studies suggest that the superior colliculus (SC) actively contributes to the integration of contextual information for the planning of saccadic eye movements. However, it is still under considerable discussion whether the neuronal processing mechanisms in the SC are also sufficient to account for target, selection in response to multiple targets. Here, we use a neural field model which captures the basic pattern of lateral interaction in the SC to elucidate the role of the SC for the timing and metrics of a saccade in a double-target paradigm. Our modeling results suggest a more active role of the SC also for target selection. (C) 2002 Elsevier Science B.V. All rights reserved.