Surface texture can bias tactile form perception

Masashi Nakatani, Robert D. Howe, Susumu Tachi

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The sense of touch is believed to provide a reliable perception of the object's properties; however, our tactile perceptions could be illusory at times. A recently reported tactile illusion shows that a raised form can be perceived as indented when it is surrounded by textured areas. This phenomenon suggests that the form perception can be influenced by the surface textures in its adjacent areas. As perception of texture and that of form have been studied independently of each other, the present study examined whether textures, in addition to the geometric edges, contribute to the tactile form perception. We examined the perception of the flat and raised contact surface (3.0 mm width) with various heights (0.1, 0.2, 0.3 mm), which had either textured or non-textured adjacent areas, under the static, passive and active touch conditions. Our results showed that texture decreased the raised perception of the surface with a small height (0.1 mm) and decreased the flat perception of the physically flat surface under the passive and active touch conditions. We discuss a possible mechanism underlying the effect of the textures on the form perception based on previous neurophysiological findings.

Original languageEnglish
Pages (from-to)151-156
Number of pages6
JournalExperimental Brain Research
Volume208
Issue number1
DOIs
Publication statusPublished - 2011 Jan

Fingerprint

Touch Perception
Form Perception
Touch

Keywords

  • Fingerpad
  • Geometric form perception
  • Shape perception
  • Tactile illusion
  • Tactile perception

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Surface texture can bias tactile form perception. / Nakatani, Masashi; Howe, Robert D.; Tachi, Susumu.

In: Experimental Brain Research, Vol. 208, No. 1, 01.2011, p. 151-156.

Research output: Contribution to journalArticle

Nakatani, Masashi ; Howe, Robert D. ; Tachi, Susumu. / Surface texture can bias tactile form perception. In: Experimental Brain Research. 2011 ; Vol. 208, No. 1. pp. 151-156.
@article{14108940c01c472995374e519614bf04,
title = "Surface texture can bias tactile form perception",
abstract = "The sense of touch is believed to provide a reliable perception of the object's properties; however, our tactile perceptions could be illusory at times. A recently reported tactile illusion shows that a raised form can be perceived as indented when it is surrounded by textured areas. This phenomenon suggests that the form perception can be influenced by the surface textures in its adjacent areas. As perception of texture and that of form have been studied independently of each other, the present study examined whether textures, in addition to the geometric edges, contribute to the tactile form perception. We examined the perception of the flat and raised contact surface (3.0 mm width) with various heights (0.1, 0.2, 0.3 mm), which had either textured or non-textured adjacent areas, under the static, passive and active touch conditions. Our results showed that texture decreased the raised perception of the surface with a small height (0.1 mm) and decreased the flat perception of the physically flat surface under the passive and active touch conditions. We discuss a possible mechanism underlying the effect of the textures on the form perception based on previous neurophysiological findings.",
keywords = "Fingerpad, Geometric form perception, Shape perception, Tactile illusion, Tactile perception",
author = "Masashi Nakatani and Howe, {Robert D.} and Susumu Tachi",
year = "2011",
month = "1",
doi = "10.1007/s00221-010-2464-3",
language = "English",
volume = "208",
pages = "151--156",
journal = "Experimental Brain Research",
issn = "0014-4819",
publisher = "Springer Verlag",
number = "1",

}

TY - JOUR

T1 - Surface texture can bias tactile form perception

AU - Nakatani, Masashi

AU - Howe, Robert D.

AU - Tachi, Susumu

PY - 2011/1

Y1 - 2011/1

N2 - The sense of touch is believed to provide a reliable perception of the object's properties; however, our tactile perceptions could be illusory at times. A recently reported tactile illusion shows that a raised form can be perceived as indented when it is surrounded by textured areas. This phenomenon suggests that the form perception can be influenced by the surface textures in its adjacent areas. As perception of texture and that of form have been studied independently of each other, the present study examined whether textures, in addition to the geometric edges, contribute to the tactile form perception. We examined the perception of the flat and raised contact surface (3.0 mm width) with various heights (0.1, 0.2, 0.3 mm), which had either textured or non-textured adjacent areas, under the static, passive and active touch conditions. Our results showed that texture decreased the raised perception of the surface with a small height (0.1 mm) and decreased the flat perception of the physically flat surface under the passive and active touch conditions. We discuss a possible mechanism underlying the effect of the textures on the form perception based on previous neurophysiological findings.

AB - The sense of touch is believed to provide a reliable perception of the object's properties; however, our tactile perceptions could be illusory at times. A recently reported tactile illusion shows that a raised form can be perceived as indented when it is surrounded by textured areas. This phenomenon suggests that the form perception can be influenced by the surface textures in its adjacent areas. As perception of texture and that of form have been studied independently of each other, the present study examined whether textures, in addition to the geometric edges, contribute to the tactile form perception. We examined the perception of the flat and raised contact surface (3.0 mm width) with various heights (0.1, 0.2, 0.3 mm), which had either textured or non-textured adjacent areas, under the static, passive and active touch conditions. Our results showed that texture decreased the raised perception of the surface with a small height (0.1 mm) and decreased the flat perception of the physically flat surface under the passive and active touch conditions. We discuss a possible mechanism underlying the effect of the textures on the form perception based on previous neurophysiological findings.

KW - Fingerpad

KW - Geometric form perception

KW - Shape perception

KW - Tactile illusion

KW - Tactile perception

UR - http://www.scopus.com/inward/record.url?scp=78951492735&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78951492735&partnerID=8YFLogxK

U2 - 10.1007/s00221-010-2464-3

DO - 10.1007/s00221-010-2464-3

M3 - Article

C2 - 20981539

AN - SCOPUS:78951492735

VL - 208

SP - 151

EP - 156

JO - Experimental Brain Research

JF - Experimental Brain Research

SN - 0014-4819

IS - 1

ER -