Cargando…

Contact Force and Scanning Velocity during Active Roughness Perception

Haptic perception is bidirectionally related to exploratory movements, which means that exploration influences perception, but perception also influences exploration. We can optimize or change exploratory movements according to the perception and/or the task, consciously or unconsciously. This paper...

Descripción completa

Detalles Bibliográficos
Autores principales: Tanaka, Yoshihiro, Bergmann Tiest, Wouter M., Kappers, Astrid M. L., Sano, Akihito
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3968175/
https://www.ncbi.nlm.nih.gov/pubmed/24676036
http://dx.doi.org/10.1371/journal.pone.0093363
_version_ 1782309127996833792
author Tanaka, Yoshihiro
Bergmann Tiest, Wouter M.
Kappers, Astrid M. L.
Sano, Akihito
author_facet Tanaka, Yoshihiro
Bergmann Tiest, Wouter M.
Kappers, Astrid M. L.
Sano, Akihito
author_sort Tanaka, Yoshihiro
collection PubMed
description Haptic perception is bidirectionally related to exploratory movements, which means that exploration influences perception, but perception also influences exploration. We can optimize or change exploratory movements according to the perception and/or the task, consciously or unconsciously. This paper presents a psychophysical experiment on active roughness perception to investigate movement changes as the haptic task changes. Exerted normal force and scanning velocity are measured in different perceptual tasks (discrimination or identification) using rough and smooth stimuli. The results show that humans use a greater variation in contact force for the smooth stimuli than for the rough stimuli. Moreover, they use higher scanning velocities and shorter break times between stimuli in the discrimination task than in the identification task. Thus, in roughness perception humans spontaneously use different strategies that seem effective for the perceptual task and the stimuli. A control task, in which the participants just explore the stimuli without any perceptual objective, shows that humans use a smaller contact force and a lower scanning velocity for the rough stimuli than for the smooth stimuli. Possibly, these strategies are related to aversiveness while exploring stimuli.
format Online
Article
Text
id pubmed-3968175
institution National Center for Biotechnology Information
language English
publishDate 2014
publisher Public Library of Science
record_format MEDLINE/PubMed
spelling pubmed-39681752014-04-01 Contact Force and Scanning Velocity during Active Roughness Perception Tanaka, Yoshihiro Bergmann Tiest, Wouter M. Kappers, Astrid M. L. Sano, Akihito PLoS One Research Article Haptic perception is bidirectionally related to exploratory movements, which means that exploration influences perception, but perception also influences exploration. We can optimize or change exploratory movements according to the perception and/or the task, consciously or unconsciously. This paper presents a psychophysical experiment on active roughness perception to investigate movement changes as the haptic task changes. Exerted normal force and scanning velocity are measured in different perceptual tasks (discrimination or identification) using rough and smooth stimuli. The results show that humans use a greater variation in contact force for the smooth stimuli than for the rough stimuli. Moreover, they use higher scanning velocities and shorter break times between stimuli in the discrimination task than in the identification task. Thus, in roughness perception humans spontaneously use different strategies that seem effective for the perceptual task and the stimuli. A control task, in which the participants just explore the stimuli without any perceptual objective, shows that humans use a smaller contact force and a lower scanning velocity for the rough stimuli than for the smooth stimuli. Possibly, these strategies are related to aversiveness while exploring stimuli. Public Library of Science 2014-03-27 /pmc/articles/PMC3968175/ /pubmed/24676036 http://dx.doi.org/10.1371/journal.pone.0093363 Text en © 2014 Tanaka et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Tanaka, Yoshihiro
Bergmann Tiest, Wouter M.
Kappers, Astrid M. L.
Sano, Akihito
Contact Force and Scanning Velocity during Active Roughness Perception
title Contact Force and Scanning Velocity during Active Roughness Perception
title_full Contact Force and Scanning Velocity during Active Roughness Perception
title_fullStr Contact Force and Scanning Velocity during Active Roughness Perception
title_full_unstemmed Contact Force and Scanning Velocity during Active Roughness Perception
title_short Contact Force and Scanning Velocity during Active Roughness Perception
title_sort contact force and scanning velocity during active roughness perception
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3968175/
https://www.ncbi.nlm.nih.gov/pubmed/24676036
http://dx.doi.org/10.1371/journal.pone.0093363
work_keys_str_mv AT tanakayoshihiro contactforceandscanningvelocityduringactiveroughnessperception
AT bergmanntiestwouterm contactforceandscanningvelocityduringactiveroughnessperception
AT kappersastridml contactforceandscanningvelocityduringactiveroughnessperception
AT sanoakihito contactforceandscanningvelocityduringactiveroughnessperception