Temporal dynamics of remapping captured by peri-saccadic continuous motion

• DOI: 10.1167/12.7.12
• Publication Date: 2012-07-25T01:49:37Z
• Authors: M. Szinte; M. Wexler; P. Cavanagh
• Keywords: TRACE (psycholinguistics)

Abstract Different attention and saccade control areas contribute to space constancy by remapping target activity onto their expected post-saccadic locations. To visualize this dynamic remapping, we used a technique developed Honda (2006) where probe moved vertically while participants made across the motion path. Observers do not report any large excursions of trace at time that would correspond classical peri-saccadic mislocalization effect. Instead, they reported appeared be broken into two separate segments with shift approximately one-fifth amplitude representing an overcompensation retinal displacement caused saccade. measure timing break in trace, introduced second, physical was same size but opposite direction saccade-induced shift. The continuous most frequently when midpoint saccade, suggesting compensation is place lands. Moreover, simple linear combined traces appear linear, no curvature. In contrast, had pre- portion aligned there often small, visible excursion compare our results more directly, increased contrast moving third experiment. Now some observers seeing deviation path misalignment remained present. We conclude deviations are generally masked for continuously nevertheless residual between coordinates 20% normally goes unnoticed.