| Eye movements and neural remapping during fusion of misaligned random-dot stereograms. | |
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MedLine Citation:
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PMID: 6663369 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Fender and Julesz [J. Opt. Soc. Am. 57, 819 (1967)] found that fused retinally stabilized binocular line targets could be misaligned on the two retinas in the temporalward direction by at least 30 min of arc without loss of fusion and stereopsis and that random-dot stereograms could be misaligned 2 deg before fusion was lost. To test these results in normal vision, we recorded eye motions of four observers while they viewed a random-dot stereogram that subtended about 10 deg. The observers misaligned overlaid vectograph stereo images by moving them apart in a temporalward direction until fusion was lost. They then returned the vectographs to the overlaid position. Throughout this cycle the observers reported at frequent intervals if they could perceive strong or weak depth, loss of depth, or loss of fusion. For some observers the image separation could be increased to 5 deg beyond parallel before fusion was lost. The visual axes diverged to follow the image centers and varied from overconverged to overdiverged with respect to the image centers while the observers still reported depth and fusion. We call the difference between the image separation and eye vergence the vergence error. If a vergence error persisted for at least 10 sec without loss of the percepts of fusion and depth, we postulate that neutral remapping occurred that compensated for the retinal misalignment. We found that the average maximum neural remapping was 3.0 deg.(ABSTRACT TRUNCATED AT 250 WORDS) |
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Authors:
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M T Hyson; B Julesz; D H Fender |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Journal of the Optical Society of America Volume: 73 ISSN: 0030-3941 ISO Abbreviation: J Opt Soc Am Publication Date: 1983 Dec |
Date Detail:
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Created Date: 1984-03-14 Completed Date: 1984-03-14 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 7503097 Medline TA: J Opt Soc Am Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1665-73 Citation Subset: IM; S |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Depth Perception / physiology* Eye Movements* Female Humans Male Retina / physiology* Saccades Vision Tests / instrumentation, methods |
| Grant Support | |
ID/Acronym/Agency:
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EY02890/EY/NEI NIH HHS; EY07011/EY/NEI NIH HHS; RR07003/RR/NCRR NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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