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Effects of Line Separation and Exploration on the Visual and Haptic Detection of Symmetry and Repetition
Abstract. Detection of regularities (e.g., symmetry, repetition) can be used to investigate object and shape perception. Symmetry and nearby lines may both signal that one object is present, so moving lines apart may disrupt symmetry detection, while repetition may signal that multiple objects are p...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Hogrefe Publishing
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5082038/ https://www.ncbi.nlm.nih.gov/pubmed/27750520 http://dx.doi.org/10.1027/1618-3169/a000329 |
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author | Lawson, Rebecca Ajvani, Henna Cecchetto, Stefano |
author_facet | Lawson, Rebecca Ajvani, Henna Cecchetto, Stefano |
author_sort | Lawson, Rebecca |
collection | PubMed |
description | Abstract. Detection of regularities (e.g., symmetry, repetition) can be used to investigate object and shape perception. Symmetry and nearby lines may both signal that one object is present, so moving lines apart may disrupt symmetry detection, while repetition may signal that multiple objects are present. Participants discriminated symmetrical/irregular and repeated/irregular pairs of lines. For vision, as predicted, increased line separation disrupted symmetry detection more than repetition detection. For haptics, symmetry and repetition detection were similarly disrupted by increased line separation; also, symmetry was easier to detect than repetition for one-handed exploration and for body midline-aligned stimuli, whereas symmetry was harder to detect than repetition with two-handed exploration of stimuli oriented across the body. These effects of exploration and stimulus orientation show the influence of modality-specific processing rather than properties of the external world on regularity detection. These processes may, in turn, provide insights into the nature of objectness in vision and in touch. |
format | Online Article Text |
id | pubmed-5082038 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Hogrefe Publishing |
record_format | MEDLINE/PubMed |
spelling | pubmed-50820382016-11-16 Effects of Line Separation and Exploration on the Visual and Haptic Detection of Symmetry and Repetition Lawson, Rebecca Ajvani, Henna Cecchetto, Stefano Exp Psychol Research Article Abstract. Detection of regularities (e.g., symmetry, repetition) can be used to investigate object and shape perception. Symmetry and nearby lines may both signal that one object is present, so moving lines apart may disrupt symmetry detection, while repetition may signal that multiple objects are present. Participants discriminated symmetrical/irregular and repeated/irregular pairs of lines. For vision, as predicted, increased line separation disrupted symmetry detection more than repetition detection. For haptics, symmetry and repetition detection were similarly disrupted by increased line separation; also, symmetry was easier to detect than repetition for one-handed exploration and for body midline-aligned stimuli, whereas symmetry was harder to detect than repetition with two-handed exploration of stimuli oriented across the body. These effects of exploration and stimulus orientation show the influence of modality-specific processing rather than properties of the external world on regularity detection. These processes may, in turn, provide insights into the nature of objectness in vision and in touch. Hogrefe Publishing 2016-10-18 2016 /pmc/articles/PMC5082038/ /pubmed/27750520 http://dx.doi.org/10.1027/1618-3169/a000329 Text en © 2016 Hogrefe Publishing. Distributed as a Hogrefe OpenMind article under the license [CC BY 4.0 (http://creativecommons.org/licenses/by/4.0/)] |
spellingShingle | Research Article Lawson, Rebecca Ajvani, Henna Cecchetto, Stefano Effects of Line Separation and Exploration on the Visual and Haptic Detection of Symmetry and Repetition |
title | Effects of Line Separation and Exploration on the Visual and Haptic
Detection of Symmetry and Repetition |
title_full | Effects of Line Separation and Exploration on the Visual and Haptic
Detection of Symmetry and Repetition |
title_fullStr | Effects of Line Separation and Exploration on the Visual and Haptic
Detection of Symmetry and Repetition |
title_full_unstemmed | Effects of Line Separation and Exploration on the Visual and Haptic
Detection of Symmetry and Repetition |
title_short | Effects of Line Separation and Exploration on the Visual and Haptic
Detection of Symmetry and Repetition |
title_sort | effects of line separation and exploration on the visual and haptic
detection of symmetry and repetition |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5082038/ https://www.ncbi.nlm.nih.gov/pubmed/27750520 http://dx.doi.org/10.1027/1618-3169/a000329 |
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