Cookies Policy
X

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Full Access Multisensory task action strategies affect arm placement

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Multisensory task action strategies affect arm placement

  • PDF
  • HTML
Add to Favorites
You must be logged in to use this functionality

image of Seeing and Perceiving
For more content, see Multisensory Research and Spatial Vision.

Proprioceptive precision for elbow matching in the dark is typically within ±2°. Mechanical loading (exercise) or tendon vibration can alter this precision by impacting peripheral mechanisms. Are accuracy and precision also impacted by multisensory task action strategies giving us a clue as to which central resources are involved in arm placement? In three experiments, subjects had their forearms affixed to lightweight paddles hinged sagittally at the elbow joint. Subjects positioned their arms sequentially while trying to keep the first arm still. Subjects used three strategies to place their arms: (1) guided by an indirect visual signal (traffic lights), (2) bisecting two visually guided angles, and (3) unimodal proprioceptive matching to the first arm’s position. Subjects had more difficulty positioning the second arm when matching without light cues (>2.6° from the target) and were most precise when bisecting two light-guided angles (<2.2° from target). Surprisingly, the indirect light cue did not improve accuracy, but only improved the precision of arm placement. We conclude that interaction between visual and proprioceptive guidance strategies result in superior performance even when the visually presented information is indirect in nature.

Affiliations: 1: Centre for Vision Research, The School of Kinesiology & Health Science, York University, CA

Proprioceptive precision for elbow matching in the dark is typically within ±2°. Mechanical loading (exercise) or tendon vibration can alter this precision by impacting peripheral mechanisms. Are accuracy and precision also impacted by multisensory task action strategies giving us a clue as to which central resources are involved in arm placement? In three experiments, subjects had their forearms affixed to lightweight paddles hinged sagittally at the elbow joint. Subjects positioned their arms sequentially while trying to keep the first arm still. Subjects used three strategies to place their arms: (1) guided by an indirect visual signal (traffic lights), (2) bisecting two visually guided angles, and (3) unimodal proprioceptive matching to the first arm’s position. Subjects had more difficulty positioning the second arm when matching without light cues (>2.6° from the target) and were most precise when bisecting two light-guided angles (<2.2° from target). Surprisingly, the indirect light cue did not improve accuracy, but only improved the precision of arm placement. We conclude that interaction between visual and proprioceptive guidance strategies result in superior performance even when the visually presented information is indirect in nature.

Loading

Full text loading...

/deliver/18784763/25/0/18784763_025_00_S034_text.html;jsessionid=kud18VFbzmvpfhx2cUJmvVvv.x-brill-live-02?itemId=/content/journals/10.1163/187847612x646596&mimeType=html&fmt=ahah
/content/journals/10.1163/187847612x646596
Loading

Data & Media loading...

http://brill.metastore.ingenta.com/content/journals/10.1163/187847612x646596
Loading
Loading

Article metrics loading...

/content/journals/10.1163/187847612x646596
2012-01-01
2016-12-10

Sign-in

Can't access your account?
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation