Human characteristics on tactile angle discrimination by object movement condition

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Two-dimensional shapes can be represented on a planar surface as a series of raised edges in which the spatial relationship among all the edges is crossed or parallel. Therefore, the size of the angle between two edges constitutes an important feature of these tactile stimuli. The purpose of present study was to confirm the human capacity for tactile discrimination among raised angles under object movement condition (i.e., hand is static and stimulus is floating). We used a raised angle consisting of five standard angles (30°, 60°, 90°, 120°, and 150°) and 10 comparison angles for each standard angle. In the present study, subjects were asked to identify the larger angle of each pair by object movement condition. The results indicate that the angle discrimination threshold increased as the standard angles increased as well as when the standard angles were smaller than 90°; however, discrimination thresholds remained stable when the standard angles were greater than 90°. We concluded that angle discrimination ability with regard to raised angles is determined by the percentage of impulse rates to which slowly adapting type I (SAI) and rapidly adapting type (RA) afferents respond.

Original languageEnglish
Title of host publication2011 IEEE/ICME International Conference on Complex Medical Engineering, CME 2011
Pages514-519
Number of pages6
DOIs
Publication statusPublished - Jul 11 2011
Event2011 5th IEEE/ICME International Conference on Complex Medical Engineering, CME 2011 - Harbin, China
Duration: May 22 2011May 25 2011

Publication series

Name2011 IEEE/ICME International Conference on Complex Medical Engineering, CME 2011

Other

Other2011 5th IEEE/ICME International Conference on Complex Medical Engineering, CME 2011
CountryChina
CityHarbin
Period5/22/115/25/11

Keywords

  • Angle discrimination
  • Cutaneous feedback
  • Discrimination threshold
  • Tactile

ASJC Scopus subject areas

  • Biomedical Engineering

Cite this

Yang, J., & Wu, J. (2011). Human characteristics on tactile angle discrimination by object movement condition. In 2011 IEEE/ICME International Conference on Complex Medical Engineering, CME 2011 (pp. 514-519). [5876795] (2011 IEEE/ICME International Conference on Complex Medical Engineering, CME 2011). https://doi.org/10.1109/ICCME.2011.5876795