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  Motion of second order stimuli: Smooth pursuit eye movements and perceived speed

Hawken, M., & Gegenfurtner, K. (1996). Motion of second order stimuli: Smooth pursuit eye movements and perceived speed. Poster presented at Annual Meeting of the Association for Research in Vision and Ophthalmology (ARVO 1996), Fort Lauderdale, FL, USA.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-EB9E-F Version Permalink: http://hdl.handle.net/21.11116/0000-0005-F340-0
Genre: Poster

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 Creators:
Hawken, MJ1, 2, Author              
Gegenfurtner, KR1, 2, 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, ou_1497794              

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 Abstract: We studied smooth-pursuit eye movements elicited by first- and second-order motion stimuli. Stimuli were random dot fields whose contrast was modulated by a Gaussian window with a space constant of 0.5 degrees. For the first-order stimuli, the random dots simply moved across the screen at the same speed as the window; for the second-order stimuli the window moved across stationary or randomly flickering dots. Additional stimuli which combined first- and second-order motion cues were used to determine the degree and type of interaction found between the two types of motion stimuli. Measurements were made at slow (1 degrees/s) and moderate (6 degrees/s) target speeds. At a velocity of 1 degrees/s the initiation, transition, and steady-state phases of smooth pursuit in response to second-order motion targets are severely affected when compared with the smooth pursuit of first-order motion targets. At a velocity of 6 degrees/s there is a small but significant deficit in steady-state pursuit of second-order motion targets but not much effect on pursuit initiation.

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 Dates: 1996-02
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: BibTex Citekey: 573
 Degree: -

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Title: Annual Meeting of the Association for Research in Vision and Ophthalmology (ARVO 1996)
Place of Event: Fort Lauderdale, FL, USA
Start-/End Date: 1996-04-21 - 1996-04-26

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Title: Investigative Ophthalmology and Visual Science
Source Genre: Journal
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Publ. Info: Hagerstown, MD, etc. : Association for Research in Vision and Ophthalmology, etc.
Pages: - Volume / Issue: 37 (3) Sequence Number: - Start / End Page: S741 Identifier: ISSN: 0146-0404
CoNE: https://pure.mpg.de/cone/journals/resource/110978984074949