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  The Extra-retinal Contribution to the Perception of Motion in Depth

Welchman, A., Harris, J., & Brenner, E. (2003). The Extra-retinal Contribution to the Perception of Motion in Depth. Poster presented at 6. Tübinger Wahrnehmungskonferenz (TWK 2003), Tübingen, Germany.

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 Creators:
Welchman, AE1, 2, Author              
Harris, JM, Author
Brenner, E, Author              
Affiliations:
1Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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 Abstract: In natural settings, our eyes tend to track interesting or dangerous objects moving towards us. This complicates the relationship between an object's motion and the binocular retinal projection of its motion. To perceive the object's motion, the brain should take eye movement information into account. This could be done using retinal cues (the slip of static scene structures) or extra-retinal cues (e.g. copies of motor commands). Previous studies have found that extra-retinal cues provide a very poor cue to eye rotation (Erkelens Collewijn, Vision Research, 1985, 583-588; Regan et al., Invest Opthal Vis Sci, 1986, 584-597) thus suggesting that extra-retinal cues are not used to perceive motion-in-depth. Here, we re-evaluate the brain's use of extraretinal cues in 3D motion perception. We employ conditions designed to isolate retinal cues and extra-retinal cues to motion-in-depth. In contrast to previous reports, we nd that observers can use extra-retinal cues to make accurate motiondiscriminations. We report that extra-retinal signals provide reliable information about eye rotations that is used to perceive 3D motion.

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 Dates: 2003-02
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: BibTex Citekey: WelchmanHB2003
 Degree: -

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Title: 6. Tübinger Wahrnehmungskonferenz (TWK 2003)
Place of Event: Tübingen, Germany
Start-/End Date: 2003-02-21 - 2003-02-23

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Title: 6. Tübinger Wahrnehmungskonferenz: Sixth Perception Conference at Tübingen, TWK 2003
Source Genre: Proceedings
 Creator(s):
Bülthoff, HH1, Editor            
Gegenfurtner, KR, Editor            
Mallot, HA, Editor            
Ulrich, R, Editor
Wichmann, FA1, Editor            
Affiliations:
1 Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794            
Publ. Info: Kirchentellinsfurt, Germany : Knirsch
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 98 Identifier: ISBN: 3-927091-62-6