The relationship between shape perception accuracy and drawing ability
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Date
2022-09
Authors
Robles, Kelly E.
Bies, A. J.
Lazarides, S.
Sereno, Margaret
Journal Title
Journal ISSN
Volume Title
Publisher
Nature Communications
Abstract
Accurate shape perception is critical for object perception, identification, manipulation, and
recreation. Humans are capable of making judgements of both objective (physical) and projective
(retinal) shape. Objective judgements benefit from a global approach by incorporating context to
overcome the effects of viewing angle on an object’s shape, whereas projective judgements benefit
from a local approach to filter out contextual information. Realistic drawing skill requires projective
judgements of 3D targets to accurately depict 3D shape on a 2D surface, thus benefiting from a local
approach. The current study used a shape perception task that comprehensively tests the effects of
context on shape perception, in conjunction with a drawing task and several possible measures of local
processing bias, to show that the perceptual basis of drawing skill in neurotypical adults is not due to a
local processing bias. Perceptual flexibility, the ability to process local or global information as needed,
is discussed as a potential mechanism driving both accurate shape judgements and realistic drawing.
Description
12 pages
Keywords
Adult, Bias, Depth perception, Form perception, Humans, Perception
Citation
Robles KE, Bies AJ, Lazarides S, Sereno ME. The relationship between shape perception accuracy and drawing ability. Sci Rep. 2022 Sep 1;12(1):14900. doi: 10.1038/s41598-022-18858-6. PMID: 36050496; PMCID: PMC9437069.