PMID: 2096365Jan 1, 1990Paper

An acceleration illusion caused by underestimation of stimulus velocity during pursuit eye movements: Aubert-Fleischl revisited

Perception
A H Wertheim, P Van Gelder

Abstract

When the eyes pursue a fixation point that sweeps across a moving background pattern, and the fixation point is suddenly made to stop, the ongoing motion of the background pattern seems to accelerate to a higher velocity. Experiment I showed that this acceleration illusion is not caused by the sudden change in (i) the relative velocity between background and fixation point, (ii) the velocity of the retinal image of the background pattern, or (iii) the motion of the retinal image of the rims of the CRT screen on which the experiment was carried out. In experiment II the magnitude of the illusion was quantified. It is strongest when background and eyes move in the same direction. When they move in opposite directions it becomes less pronounced (and may disappear) with higher background velocities. The findings are explained in terms of a model proposed by the first author, in which the perception of object motion and velocity derives from the interaction between retinal slip velocity information and the brain's 'estimate' of eye velocity in space. They illustrate that the classic Aubert-Fleischl phenomenon (a stimulus seems to be moving slower when pursued with the eyes than when moving in front of stationary eyes) is a special c...Continue Reading

Citations

Apr 28, 2005·Experimental Brain Research·P M JaeklLaurence R Harris
Dec 7, 2005·Experimental Brain Research·Jan L SoumanAlexander H Wertheim
Dec 1, 1992·Vision Research·A H Wertheim, H Bekkering
Sep 1, 1995·Vision Research·F W Cornelissen, E Brenner
Feb 13, 2001·Vision Research·K A Turano, R W Massof
Jun 1, 1996·Vision Research·S M Heidenreich, K A Turano
Nov 18, 2008·Vision Research·Harold E Bedell, Jianliang Tong
May 27, 1999·Vision Research·K A Turano, S M Heidenreich
Sep 4, 2007·Vision Research·Alexander C SchützKarl R Gegenfurtner
Sep 30, 2010·Vision Research·Harold E BedellMurat Aydin
Jan 24, 2007·Vision Research·Jianliang TongHarold E Bedell
Oct 24, 2014·Frontiers in Psychology·Mark NawrotKeith Stroyan
Jul 1, 2017·Journal of Neurophysiology·Nicholas M RossKarl R Gegenfurtner
Mar 3, 2007·Journal of Neurophysiology·Naoko InabaKenji Kawano
Aug 20, 2020·PloS One·Björn Jörges, Joan López-Moliner
Feb 4, 2011·Journal of Neurophysiology·Miriam SperingKarl R Gegenfurtner

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