Perception of elasticity in the kinetic illusory object with phase differences in inducer motion.

<h4>Background</h4>It is known that subjective contours are perceived even when a figure involves motion. However, whether this includes the perception of rigidity or deformation of an illusory surface remains unknown. In particular, since most visual stimuli used in previous studies wer...

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Autores principales:	Tomohiro Masuda, Kazuki Sato, Takuma Murakoshi, Ken Utsumi, Atsushi Kimura, Nobu Shirai, So Kanazawa, Masami K Yamaguchi, Yuji Wada
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f0642cc5264d4bdab27b1019f601e42b
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spelling	oai:doaj.org-article:f0642cc5264d4bdab27b1019f601e42b2021-11-18T08:49:22ZPerception of elasticity in the kinetic illusory object with phase differences in inducer motion.1932-620310.1371/journal.pone.0078621https://doaj.org/article/f0642cc5264d4bdab27b1019f601e42b2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24205281/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>It is known that subjective contours are perceived even when a figure involves motion. However, whether this includes the perception of rigidity or deformation of an illusory surface remains unknown. In particular, since most visual stimuli used in previous studies were generated in order to induce illusory rigid objects, the potential perception of material properties such as rigidity or elasticity in these illusory surfaces has not been examined. Here, we elucidate whether the magnitude of phase difference in oscillation influences the visual impressions of an object's elasticity (Experiment 1) and identify whether such elasticity perceptions are accompanied by the shape of the subjective contours, which can be assumed to be strongly correlated with the perception of rigidity (Experiment 2).<h4>Methodology/principal findings</h4>In Experiment 1, the phase differences in the oscillating motion of inducers were controlled to investigate whether they influenced the visual impression of an illusory object's elasticity. The results demonstrated that the impression of the elasticity of an illusory surface with subjective contours was systematically flipped with the degree of phase difference. In Experiment 2, we examined whether the subjective contours of a perceived object appeared linear or curved using multi-dimensional scaling analysis. The results indicated that the contours of a moving illusory object were perceived as more curved than linear in all phase-difference conditions.<h4>Conclusions/significance</h4>These findings suggest that the phase difference in an object's motion is a significant factor in the material perception of motion-related elasticity.Tomohiro MasudaKazuki SatoTakuma MurakoshiKen UtsumiAtsushi KimuraNobu ShiraiSo KanazawaMasami K YamaguchiYuji WadaPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 10, p e78621 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Tomohiro Masuda Kazuki Sato Takuma Murakoshi Ken Utsumi Atsushi Kimura Nobu Shirai So Kanazawa Masami K Yamaguchi Yuji Wada Perception of elasticity in the kinetic illusory object with phase differences in inducer motion.
description	<h4>Background</h4>It is known that subjective contours are perceived even when a figure involves motion. However, whether this includes the perception of rigidity or deformation of an illusory surface remains unknown. In particular, since most visual stimuli used in previous studies were generated in order to induce illusory rigid objects, the potential perception of material properties such as rigidity or elasticity in these illusory surfaces has not been examined. Here, we elucidate whether the magnitude of phase difference in oscillation influences the visual impressions of an object's elasticity (Experiment 1) and identify whether such elasticity perceptions are accompanied by the shape of the subjective contours, which can be assumed to be strongly correlated with the perception of rigidity (Experiment 2).<h4>Methodology/principal findings</h4>In Experiment 1, the phase differences in the oscillating motion of inducers were controlled to investigate whether they influenced the visual impression of an illusory object's elasticity. The results demonstrated that the impression of the elasticity of an illusory surface with subjective contours was systematically flipped with the degree of phase difference. In Experiment 2, we examined whether the subjective contours of a perceived object appeared linear or curved using multi-dimensional scaling analysis. The results indicated that the contours of a moving illusory object were perceived as more curved than linear in all phase-difference conditions.<h4>Conclusions/significance</h4>These findings suggest that the phase difference in an object's motion is a significant factor in the material perception of motion-related elasticity.
format	article
author	Tomohiro Masuda Kazuki Sato Takuma Murakoshi Ken Utsumi Atsushi Kimura Nobu Shirai So Kanazawa Masami K Yamaguchi Yuji Wada
author_facet	Tomohiro Masuda Kazuki Sato Takuma Murakoshi Ken Utsumi Atsushi Kimura Nobu Shirai So Kanazawa Masami K Yamaguchi Yuji Wada
author_sort	Tomohiro Masuda
title	Perception of elasticity in the kinetic illusory object with phase differences in inducer motion.
title_short	Perception of elasticity in the kinetic illusory object with phase differences in inducer motion.
title_full	Perception of elasticity in the kinetic illusory object with phase differences in inducer motion.
title_fullStr	Perception of elasticity in the kinetic illusory object with phase differences in inducer motion.
title_full_unstemmed	Perception of elasticity in the kinetic illusory object with phase differences in inducer motion.
title_sort	perception of elasticity in the kinetic illusory object with phase differences in inducer motion.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/f0642cc5264d4bdab27b1019f601e42b
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Perception of elasticity in the kinetic illusory object with phase differences in inducer motion.

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