Journal article

Publication year: 2004

Pages: 577-590

Journal: Vision Research

Volume number: 44

Issue number: 6

ISSN: 0042-6989

DOI Link: https://doi.org/10.1016/j.visres.2003.10.011

Publisher: Elsevier

Abstract: 

In the Fröhlich illusion, the first position of a moving target is mislocalized in the direction of motion. In the onset repulsion effect, the opposite error occurs. To reconcile these conflicting error patterns, we improved previous methods by using natural pointing movements and a large range of target velocities. Displacement was found to increase in the direction of motion, but the linear function relating velocity and displacement was shifted opposite to the direction of target motion. The results suggest that onset localization may be determined by two independent factors: first, an (attentional) delay that accounts for the increase of displacement in the direction of motion with increasing velocity. This delay is visible in motor and probe judgments and explains the Fröhlich illusion. Second, motor judgments are offset opposite to the direction of target motion. This bias is unique to motor judgments (pointing) and may be partially explained by attentional repulsion. (C) 2003 Elsevier Ltd. All rights reserved.

Harvard Citation style: Kerzel, D. and Gegenfurtner, K. (2004) Spatial distortions and processing latencies in the onset repulsion and Fröhlich effects, Vision Research, 44(6), pp. 577-590. https://doi.org/10.1016/j.visres.2003.10.011

APA Citation style: Kerzel, D., & Gegenfurtner, K. (2004). Spatial distortions and processing latencies in the onset repulsion and Fröhlich effects. Vision Research. 44(6), 577-590. https://doi.org/10.1016/j.visres.2003.10.011