@article{ref1,
title="Distractor interference during smooth pursuit eye movements",
journal="Journal of experimental psychology: human perception and performance",
year="2006",
author="Spering, Miriam and Gegenfurtner, Karl R. and Kerzel, Dirk",
volume="32",
number="5",
pages="1136-1154",
abstract="When 2 targets for pursuit eye movements move in different directions, the eye velocity follows the vector average (S. G. Lisberger & V. P. Ferrera, 1997). The present study investigates the mechanisms of target selection when observers are instructed to follow a predefined horizontal target and to ignore a moving distractor stimulus. Results show that at 140 ms after distractor onset, horizontal eye velocity is decreased by about 25%. Vertical eye velocity increases or decreases by 1 degrees /s in the direction opposite from the distractor. This deviation varies in size with distractor direction, velocity, and contrast. The effect was present during the initiation and steady-state tracking phase of pursuit but only when the observer had prior information about target motion. Neither vector averaging nor winner-take-all models could predict the response to a moving to-be-ignored distractor during steady-state tracking of a predefined target. The contributions of perceptual mislocalization and spatial attention to the vertical deviation in pursuit are discussed.<p /> <p>Language: en</p>",
language="en",
issn="0096-1523",
doi="10.1037/0096-1523.32.5.1136",
url="http://dx.doi.org/10.1037/0096-1523.32.5.1136"
}