Citation

Müsseler J, Stork S, Kerzel D. Vision Res. 2008; 48(4): 611-617.

Affiliation

RWTH Aachen University, Psychology Department, Jägerstr. 17-19, 52056 Aachen, Germany.

Copyright

(Copyright © 2008, Elsevier Publishing)

DOI

10.1016/j.visres.2007.11.024

PMID

18207214

Abstract

In the Frohlich effect, the perceived onset of a moving stimulus is displaced in the direction of motion. Previously, we observed that pointing movements produced a Frohlich effect only when the onset position was highly predictable. Here, we show that relative judgments are not affected by spatial predictability if the relative judgment task is performed in isolation. However, when the two tasks vary randomly from trial to trial, effects of spatial predictability carry over to the perceptual task. Thus, observers' intentions before stimulus onset determine the way position signals are processed. An account in terms of sensory and motor maps is discussed.

Language: en