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Drawing skill is related to the efficiency of encoding object structure

Accurate drawing calls on many skills beyond simple motor coordination. A good internal representation of the target object's structure is necessary to capture its proportion and shape in the drawing. Here, we assess two aspects of the perception of object structure and relate them to participa...

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Detalles Bibliográficos
Autores principales: Perdreau, Florian, Cavanagh, Patrick
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Pion 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4249990/
https://www.ncbi.nlm.nih.gov/pubmed/25469216
http://dx.doi.org/10.1068/i0635
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author Perdreau, Florian
Cavanagh, Patrick
author_facet Perdreau, Florian
Cavanagh, Patrick
author_sort Perdreau, Florian
collection PubMed
description Accurate drawing calls on many skills beyond simple motor coordination. A good internal representation of the target object's structure is necessary to capture its proportion and shape in the drawing. Here, we assess two aspects of the perception of object structure and relate them to participants' drawing accuracy. First, we assessed drawing accuracy by computing the geometrical dissimilarity of their drawing to the target object. We then used two tasks to evaluate the efficiency of encoding object structure. First, to examine the rate of temporal encoding, we varied presentation duration of a possible versus impossible test object in the fovea using two different test sizes (8° and 28°). More skilled participants were faster at encoding an object's structure, but this difference was not affected by image size. A control experiment showed that participants skilled in drawing did not have a general advantage that might have explained their faster processing for object structure. Second, to measure the critical image size for accurate classification in the periphery, we varied image size with possible versus impossible object tests centered at two different eccentricities (3° and 8°). More skilled participants were able to categorise object structure at smaller sizes, and this advantage did not change with eccentricity. A control experiment showed that the result could not be attributed to differences in visual acuity, leaving attentional resolution as a possible explanation. Overall, we conclude that drawing accuracy is related to faster encoding of object structure and better access to crowded details.
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spelling pubmed-42499902014-12-02 Drawing skill is related to the efficiency of encoding object structure Perdreau, Florian Cavanagh, Patrick Iperception Article Accurate drawing calls on many skills beyond simple motor coordination. A good internal representation of the target object's structure is necessary to capture its proportion and shape in the drawing. Here, we assess two aspects of the perception of object structure and relate them to participants' drawing accuracy. First, we assessed drawing accuracy by computing the geometrical dissimilarity of their drawing to the target object. We then used two tasks to evaluate the efficiency of encoding object structure. First, to examine the rate of temporal encoding, we varied presentation duration of a possible versus impossible test object in the fovea using two different test sizes (8° and 28°). More skilled participants were faster at encoding an object's structure, but this difference was not affected by image size. A control experiment showed that participants skilled in drawing did not have a general advantage that might have explained their faster processing for object structure. Second, to measure the critical image size for accurate classification in the periphery, we varied image size with possible versus impossible object tests centered at two different eccentricities (3° and 8°). More skilled participants were able to categorise object structure at smaller sizes, and this advantage did not change with eccentricity. A control experiment showed that the result could not be attributed to differences in visual acuity, leaving attentional resolution as a possible explanation. Overall, we conclude that drawing accuracy is related to faster encoding of object structure and better access to crowded details. Pion 2014-05-06 /pmc/articles/PMC4249990/ /pubmed/25469216 http://dx.doi.org/10.1068/i0635 Text en Copyright 2014 F Perdreau, P Cavanagh 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
Perdreau, Florian
Cavanagh, Patrick
Drawing skill is related to the efficiency of encoding object structure
title Drawing skill is related to the efficiency of encoding object structure
title_full Drawing skill is related to the efficiency of encoding object structure
title_fullStr Drawing skill is related to the efficiency of encoding object structure
title_full_unstemmed Drawing skill is related to the efficiency of encoding object structure
title_short Drawing skill is related to the efficiency of encoding object structure
title_sort drawing skill is related to the efficiency of encoding object structure
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4249990/
https://www.ncbi.nlm.nih.gov/pubmed/25469216
http://dx.doi.org/10.1068/i0635
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