Perisaccadic perceptual mislocalization strength depends on the visual appearance of saccade targets

Brief visual probes are grossly mislocalized when presented in the temporal vicinity of saccades. Although the mechanisms of such mislocalization are still under investigation, one component of them could derive from corollary discharge signals associated with saccade movement commands. Here, we were motivated by the observation that superior colliculus movement bursts, one source of corollary discharge, vary with saccade target image appearance. If so, then perisaccadic mislocalization should also do so, which we confirmed.