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Aging and Curvature Discrimination from Static and Dynamic Touch

Two experiments evaluated the ability of 30 older and younger adults to discriminate the curvature of simple object surfaces from static and dynamic touch. The ages of the older adults ranged from 66 to 85 years, while those of the younger adults ranged from 20 to 29 years. For each participant in b...

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Autores principales: Norman, J. Farley, Kappers, Astrid M. L., Cheeseman, Jacob R., Ronning, Cecilia, Thomason, Kelsey E., Baxter, Michael W., Calloway, Autum B., Lamirande, Davora N.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3699499/
https://www.ncbi.nlm.nih.gov/pubmed/23844224
http://dx.doi.org/10.1371/journal.pone.0068577
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author Norman, J. Farley
Kappers, Astrid M. L.
Cheeseman, Jacob R.
Ronning, Cecilia
Thomason, Kelsey E.
Baxter, Michael W.
Calloway, Autum B.
Lamirande, Davora N.
author_facet Norman, J. Farley
Kappers, Astrid M. L.
Cheeseman, Jacob R.
Ronning, Cecilia
Thomason, Kelsey E.
Baxter, Michael W.
Calloway, Autum B.
Lamirande, Davora N.
author_sort Norman, J. Farley
collection PubMed
description Two experiments evaluated the ability of 30 older and younger adults to discriminate the curvature of simple object surfaces from static and dynamic touch. The ages of the older adults ranged from 66 to 85 years, while those of the younger adults ranged from 20 to 29 years. For each participant in both experiments, the minimum curvature magnitude needed to reliably discriminate between convex and concave surfaces was determined. In Experiment 1, participants used static touch to make their judgments of curvature, while dynamic touch was used in Experiment 2. When static touch was used to discriminate curvature, a large effect of age occurred (the thresholds were 0.67 & 1.11/m for the younger and older participants, respectively). However, when participants used dynamic touch, there was no significant difference between the ability of younger and older participants to discriminate curvature (the thresholds were 0.58 & 0.59/m for the younger and older participants, respectively). The results of the current study demonstrate that while older adults can accurately discriminate surface curvature from dynamic touch, they possess significant impairments for static touch.
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spelling pubmed-36994992013-07-10 Aging and Curvature Discrimination from Static and Dynamic Touch Norman, J. Farley Kappers, Astrid M. L. Cheeseman, Jacob R. Ronning, Cecilia Thomason, Kelsey E. Baxter, Michael W. Calloway, Autum B. Lamirande, Davora N. PLoS One Research Article Two experiments evaluated the ability of 30 older and younger adults to discriminate the curvature of simple object surfaces from static and dynamic touch. The ages of the older adults ranged from 66 to 85 years, while those of the younger adults ranged from 20 to 29 years. For each participant in both experiments, the minimum curvature magnitude needed to reliably discriminate between convex and concave surfaces was determined. In Experiment 1, participants used static touch to make their judgments of curvature, while dynamic touch was used in Experiment 2. When static touch was used to discriminate curvature, a large effect of age occurred (the thresholds were 0.67 & 1.11/m for the younger and older participants, respectively). However, when participants used dynamic touch, there was no significant difference between the ability of younger and older participants to discriminate curvature (the thresholds were 0.58 & 0.59/m for the younger and older participants, respectively). The results of the current study demonstrate that while older adults can accurately discriminate surface curvature from dynamic touch, they possess significant impairments for static touch. Public Library of Science 2013-07-02 /pmc/articles/PMC3699499/ /pubmed/23844224 http://dx.doi.org/10.1371/journal.pone.0068577 Text en © 2013 Norman 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
Norman, J. Farley
Kappers, Astrid M. L.
Cheeseman, Jacob R.
Ronning, Cecilia
Thomason, Kelsey E.
Baxter, Michael W.
Calloway, Autum B.
Lamirande, Davora N.
Aging and Curvature Discrimination from Static and Dynamic Touch
title Aging and Curvature Discrimination from Static and Dynamic Touch
title_full Aging and Curvature Discrimination from Static and Dynamic Touch
title_fullStr Aging and Curvature Discrimination from Static and Dynamic Touch
title_full_unstemmed Aging and Curvature Discrimination from Static and Dynamic Touch
title_short Aging and Curvature Discrimination from Static and Dynamic Touch
title_sort aging and curvature discrimination from static and dynamic touch
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3699499/
https://www.ncbi.nlm.nih.gov/pubmed/23844224
http://dx.doi.org/10.1371/journal.pone.0068577
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