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. 2018 Jul 31;9:1227. doi: 10.3389/fpsyg.2018.01227

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Copyright © 2018 Schneider.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The flash-lag effect. (A) A flash (red star) occurs aligned with a moving bar (dashed outline), but the bar at the time of the flash is perceived as advanced along its trajectory. Space–time diagrams (B–E). (B) An object (black line) is continuously moving through the visual field. At some time, a new static object (red line) flashes in alignment with the moving object. Note that the onset and duration of the flash within the moment do not affect its perception; the flash is thus depicted as filling the moment. (C) The perceived location of the flash appears to lag in behind the moving object. (D,E) as in Figure 1.