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Exocentric pointing in the visual field
“Exocentric pointing in the visual field” involves the setting of a pointer so as to visually point to a target, where both pointer and target are objects in the visual field. Phenomenologically, such pointings show systematic deviations from veridicality of several degrees. The errors are very smal...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Pion
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4129387/ https://www.ncbi.nlm.nih.gov/pubmed/25165511 http://dx.doi.org/10.1068/i0609 |
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author | van Doorn, Andrea Koenderink, Jan Wagemans, Johan |
author_facet | van Doorn, Andrea Koenderink, Jan Wagemans, Johan |
author_sort | van Doorn, Andrea |
collection | PubMed |
description | “Exocentric pointing in the visual field” involves the setting of a pointer so as to visually point to a target, where both pointer and target are objects in the visual field. Phenomenologically, such pointings show systematic deviations from veridicality of several degrees. The errors are very small in the vertical and horizontal directions, but appreciable in oblique directions. The magnitude of the error is largely independent of the distance between pointer and target for stretches in the range 2–27°. A general conclusion is that the visual field cannot be described in terms of one of the classical homogeneous spaces, or, alternatively, that the results from pointing involve mechanisms that come after geometry proper has been established. |
format | Online Article Text |
id | pubmed-4129387 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Pion |
record_format | MEDLINE/PubMed |
spelling | pubmed-41293872014-08-27 Exocentric pointing in the visual field van Doorn, Andrea Koenderink, Jan Wagemans, Johan Iperception Article “Exocentric pointing in the visual field” involves the setting of a pointer so as to visually point to a target, where both pointer and target are objects in the visual field. Phenomenologically, such pointings show systematic deviations from veridicality of several degrees. The errors are very small in the vertical and horizontal directions, but appreciable in oblique directions. The magnitude of the error is largely independent of the distance between pointer and target for stretches in the range 2–27°. A general conclusion is that the visual field cannot be described in terms of one of the classical homogeneous spaces, or, alternatively, that the results from pointing involve mechanisms that come after geometry proper has been established. Pion 2013-12-09 /pmc/articles/PMC4129387/ /pubmed/25165511 http://dx.doi.org/10.1068/i0609 Text en Copyright 2013 A van Doorn, J Koenderink, J Wagemans http://creativecommons.org/licenses/by-nc-nd/3.0/ This open-access article is distributed under a Creative Commons Licence, which permits noncommercial use, distribution, and reproduction, provided the original author(s) and source are credited and no alterations are made. |
spellingShingle | Article van Doorn, Andrea Koenderink, Jan Wagemans, Johan Exocentric pointing in the visual field |
title | Exocentric pointing in the visual field |
title_full | Exocentric pointing in the visual field |
title_fullStr | Exocentric pointing in the visual field |
title_full_unstemmed | Exocentric pointing in the visual field |
title_short | Exocentric pointing in the visual field |
title_sort | exocentric pointing in the visual field |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4129387/ https://www.ncbi.nlm.nih.gov/pubmed/25165511 http://dx.doi.org/10.1068/i0609 |
work_keys_str_mv | AT vandoornandrea exocentricpointinginthevisualfield AT koenderinkjan exocentricpointinginthevisualfield AT wagemansjohan exocentricpointinginthevisualfield |