This paper investigates the temporal dependencies of natural vision by measuring eye and hand movements while subjects made a sandwich. The phenomenon of change blindness suggests these temporal dependencies might be limited. Our observations are largely consistent with this, suggesting that much natural vision can be accomplished with “just-in-time” representations. However, we also observe several aspects of performance that point to the need for some representation of the spatial structure of the scene that is built up over different fixations. Patterns of eye-hand coordination and fixation sequences suggest the need for planning and coordinating movements over a period of a few seconds. This planning must be in a coordinate frame that is independent of eye position, and thus requires a representation of the spatial structure in a scene that is built up over different fixations.

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Copyright © 2003 by The Association for Research in Vision and Ophthalmology. All Rights Reserved. With the exception of material authored by government employees working in an official capacity, copyright for all material published in Journal of Vision is assigned to the Association for Research in Vision and Ophthalmology (ARVO). Users may view, reproduce or store copies of articles comprising the journal provided that the articles are used only for their personal, non-commercial use. Uses beyond that allowed by the "Fair Use" limitations (sections 107 and 108) of the U.S. Copyright law require permission which must be obtained in writing from the Journal of Vision Editorial Office (see contact information below). Any uses and or copies of Journal of Vision articles, either in whole or in part, must include the customary bibliographic citation, including author attribution, date, article title, journal name, DOI and/or URL, and copyright notice. This research was supported by National Institutes of Health Grants EY-05729 and RR-09283 Thanks to Chris Chizk for assistance with the experiments. Commercial relationships: None. DOI: 10.1167/3.1.6. http://journalofvision.org/3/1/6/ISSN:1534-7362 Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works in February 2014.

Document Type


Department, Program, or Center

Chester F. Carlson Center for Imaging Science (COS)


RIT – Main Campus