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  Disparity-evoked Vergence is Driven by Interocular Correlation

Mallot, H., Roll, A., & Arndt, P. (1996). Disparity-evoked Vergence is Driven by Interocular Correlation. Vision Research, 36(18), 2925-2937. doi:10.1016/0042-6989(96)00011-9.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-EB14-1 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-E6F9-F
Genre: Journal Article

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Mallot, HA1, 2, Author              
Roll, A, Author
Arndt, PA, Author
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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: Disparity-evoked vergence is studied in stereograms showing one or two depth planes which are defined by isolated dots of varying density and contrast. Vergence position immediately after stimulus presentation was measured using dichoptic nonius lines. Since the stimulus was not visible after the onset of the vergence movement, the experiment accesses the initiation of vergence rather than its eventual result. In the unequivocal stimuli (one depth plane), elicited vergence tends to reduce disparity. Disparities of 0.5–1 deg are most effective which is in accordance with earlier findings. If two depth planes are presented, elicited vergence lies between the two planes, approaching the plane with higher dot density and/or dot contrast. In quantitative measurements, we show that the depth-averaging mechanism uses signal power per depth plane as a weight. Therefore, the relative pulling strength of dot density compared with dot contrast follows a power law with exponent 2. We propose a population code for vergence control based on disparity-tuned pools of units.

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 Dates: 1996-09
 Publication Status: Published in print
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 Rev. Method: -
 Identifiers: DOI: 10.1016/0042-6989(96)00011-9
BibTex Citekey: 531
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Title: Vision Research
  Other : Vision Res.
Source Genre: Journal
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Publ. Info: Amsterdam : Pergamon
Pages: - Volume / Issue: 36 (18) Sequence Number: - Start / End Page: 2925 - 2937 Identifier: ISSN: 0042-6989
CoNE: https://pure.mpg.de/cone/journals/resource/954925451842