Surface shape alters perceived material softness

When a human strokes the surface of an object with his/her finger, the surface shape influences the perceived softness of the object. This study introduced a curved surface softness illusion, which alters the perception of material softness. When a surface with curvature is felt by sliding a finger...

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Bibliographic Details
Main Authors: Hongbo Wang, Qingyu Sun, Shogo Okamoto
Format: Article
Language:English
Published: SAGE Publishing 2024-03-01
Series:i-Perception
Online Access:https://doi.org/10.1177/20416695241245021
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author Hongbo Wang
Qingyu Sun
Shogo Okamoto
author_facet Hongbo Wang
Qingyu Sun
Shogo Okamoto
author_sort Hongbo Wang
collection DOAJ
description When a human strokes the surface of an object with his/her finger, the surface shape influences the perceived softness of the object. This study introduced a curved surface softness illusion, which alters the perception of material softness. When a surface with curvature is felt by sliding a finger over it, it feels softer than a flat surface made of the same material. In contrast, a rugged surface is perceived as harder. This illusion indicates that, in addition to mechanical hardness, humans judge an object’s softness based on its surface shape.
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spelling doaj.art-26605feb687045468a7ba56c314734cb2024-04-11T23:03:31ZengSAGE Publishingi-Perception2041-66952024-03-011510.1177/20416695241245021Surface shape alters perceived material softnessHongbo WangQingyu SunShogo OkamotoWhen a human strokes the surface of an object with his/her finger, the surface shape influences the perceived softness of the object. This study introduced a curved surface softness illusion, which alters the perception of material softness. When a surface with curvature is felt by sliding a finger over it, it feels softer than a flat surface made of the same material. In contrast, a rugged surface is perceived as harder. This illusion indicates that, in addition to mechanical hardness, humans judge an object’s softness based on its surface shape.https://doi.org/10.1177/20416695241245021
spellingShingle Hongbo Wang
Qingyu Sun
Shogo Okamoto
Surface shape alters perceived material softness
i-Perception
title Surface shape alters perceived material softness
title_full Surface shape alters perceived material softness
title_fullStr Surface shape alters perceived material softness
title_full_unstemmed Surface shape alters perceived material softness
title_short Surface shape alters perceived material softness
title_sort surface shape alters perceived material softness
url https://doi.org/10.1177/20416695241245021
work_keys_str_mv AT hongbowang surfaceshapealtersperceivedmaterialsoftness
AT qingyusun surfaceshapealtersperceivedmaterialsoftness
AT shogookamoto surfaceshapealtersperceivedmaterialsoftness