Automatic Adjustment of Saccade Readiness


Participants were presented with either one diamond or one odd-colored diamond among distractors and instructed to make a saccade to fixate the target shape. They initiated eye movements to a single target faster than the odd-color target when the trial types were presented in separate blocks, consistent with results from reach-tracking experiments. Unlike reaching movements, however, when trial types were randomly mixed within a block, the initiation latencies did not homogenize. When trial types were predictably alternated, there was still no homogenization of initiation latencies. This suggests that there are different mechanisms underlying the guidance of reaching movements versus saccades, and further research is necessary to develop a full understanding of the similarities and differences between these processes.


Hackett, William, "Automatic Adjustment of Saccade Readiness" (2018). Summer Research Symposium. Brown Digital Repository. Brown University Library.



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