AI Article Synopsis
- The perceptual and cognitive systems have a strong ability to predict movements in dynamic environments, exemplified by the flash-lag effect.
- The current study introduces a new experimental method that challenges certain aspects of the prediction/extrapolation theory.
- Findings indicate that a stimulus moving toward the reference object enhances the flash-lag effect, contrary to expectations, and alternative theories are explored to explain this surprising result.
Article Abstract
One fundamental property of the perceptual and cognitive systems is their capacity for prediction in the dynamic environment; the flash-lag effect has been considered as a particularly suggestive example of this capacity (Nijhawan in nature 370:256-257, 1994, Behav brain sci 31:179-239, 2008). Thus, because of involvement of the mechanisms of extrapolation and visual prediction, the moving object is perceived ahead of the simultaneously flashed static object objectively aligned with the moving one. In the present study we introduce a new method and report experimental results inconsistent with at least some versions of the prediction/extrapolation theory. We show that a stimulus moving in the opposite direction to the reference stimulus by approaching it before the flash does not diminish the flash-lag effect, but rather augments it. In addition, alternative theories (in)capable of explaining this paradoxical result are discussed.
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| http://dx.doi.org/10.1007/s00426-011-0370-3 | DOI Listing |
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