Abstract
Research on dynamic attention has shown that visual tracking is possible even if the observer’s viewpoint on the scene holding the moving objects changes. In contrast to smooth viewpoint changes, abrupt changes typically impair tracking performance. The lack of continuous information about scene motion, resulting from abrupt changes, seems to be the critical variable. However, hard onsets of objects after abrupt scene motion could explain the impairment as well. We report three experiments employing object invisibility during smooth and abrupt viewpoint changes to examine the influence of scene information on visual tracking, while equalizing hard onsets of moving objects after the viewpoint change. Smooth viewpoint changes provided continuous information about scene motion, which supported the tracking of temporarily invisible objects. However, abrupt and, therefore, discontinuous viewpoint changes strongly impaired tracking performance. Object locations retained with respect to a reference frame can account for the attentional tracking that follows invisible objects through continuous scene motion.
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This research was supported by German Research Foundation (DFG) Grants HU 1510/4-1 and JA 1761/5-1.
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Huff, M., Meyerhoff, H.S., Papenmeier, F. et al. Spatial updating of dynamic scenes: Tracking multiple invisible objects across viewpoint changes. Attention, Perception, & Psychophysics 72, 628–636 (2010). https://doi.org/10.3758/APP.72.3.628
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DOI: https://doi.org/10.3758/APP.72.3.628