| Perception of the tactile texture of raised-dot patterns: a multidimensional analysis. | |
| | |
MedLine Citation:
|
PMID: 16338822 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
An ALSCAL multidimensional scaling analysis in Euclidean space revealed that three orthogonal perceptual dimensions can account for the judged tactile dissimilarities of raised-dot patterns. Through magnitude estimates of various perceptual attributes, it was determined that the three dimensions consist of blur, roughness, and clarity. The only effect that selective adaptation of the Pacinian (P) channel had was to change the perceptual clarity of the raised dots against their background. Adaptation of the P channel with a 20 dB SL 250 Hz stimulus enhanced clarity. As indicated by magnitude estimates, adaptation of the P channel by the 250 Hz stimulus had no effect on the perceived roughness of the dot pattern but did cause the individual dots of the textured pattern to feel smoother. When the observer was required to estimate magnitude "overall roughness" defined as a combination of dot-pattern roughness and individual-dot roughness, adaptation of the P channel affected perceived roughness by reducing it. Taken as a whole, the results are consistent with the hypothesis that the NP channels and the P channel jointly influence the perception of textured surfaces. |
| | |
Authors:
|
George A Gescheider; Stanley J Bolanowski; Tyler C Greenfield; Katyarina E Brunette |
Publication Detail:
|
Type: Clinical Trial; Journal Article; Research Support, N.I.H., Extramural |
Journal Detail:
|
Title: Somatosensory & motor research Volume: 22 ISSN: 0899-0220 ISO Abbreviation: Somatosens Mot Res Publication Date: 2005 Sep |
Date Detail:
|
Created Date: 2005-12-12 Completed Date: 2006-02-27 Revised Date: 2007-11-14 |
Medline Journal Info:
|
Nlm Unique ID: 8904127 Medline TA: Somatosens Mot Res Country: England |
Other Details:
|
Languages: eng Pagination: 127-40 Citation Subset: IM |
Affiliation:
|
Department of Psychology, Hamilton College, Clinton, NY 13323, USA. ggeschei@hamilton.edu |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adaptation, Physiological Adult Female Humans Male Perception / physiology* Physical Stimulation Touch / physiology* Vibration |
| Grant Support | |
ID/Acronym/Agency:
|
R01NS38661/NS/NINDS NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Alteration of sensorineural circuits in spinal cord by chronic contact dermatitis.
Next Document: Genetic analysis of barrel field size in the first somatosensory area (SI) in inbred and recombinant...