English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Blood pressure response to roll depends on both visual and non-visual factors.

Balaban, D., Barnett-Cowan, M., Sanderson, J., & Harris, L. (2008). Blood pressure response to roll depends on both visual and non-visual factors. Poster presented at 8th Annual Meeting of the Vision Sciences Society (VSS 2008), Naples, FL, USA.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-C917-7 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-9136-C
Genre: Poster

Files

show Files

Locators

show
hide
Description:
-

Creators

show
hide
 Creators:
Balaban, DY, Author
Barnett-Cowan, M1, Author              
Sanderson, J, Author
Harris, LR, Author
Affiliations:
1External Organizations, ou_persistent22              

Content

show
hide
Free keywords: -
 Abstract: Both physical body roll and illusory roll evoked by full-field visual motion induce changes in blood pressure (BP) (Aoki et al. 2000 Clin. Aut. Res. 10: 23). How do these BP responses combine when both vestibular and visual information concerning roll are present? Subjects sat in a padded chair inside a 9ft diameter sphere, the inside surface of which was covered in high-contrast random dots. The chair and sphere could be independently rotated about the subjects' roll axis. Subjects were physically rolled clockwise from upright to right-ear-down at 7.6°/s, which took 12s. The sphere was rotated either alone, or so as to enhance (counter clockwise), oppose (clockwise), or null (clockwise at 7.6°/s) simultaneous physical roll. BP was continuously monitored by a finger plethysmograph throughout the movement and for several seconds following. Verbal reports of perceived body orientation were noted. BP typically increased from baseline levels during physical roll in the dark and the increase was maintained while subjects remained right-ear-down. The BP response to visually evoked roll was a transient increase reaching a peak at ∼6s. The BP changes in response to combinations of physical and visual roll were well described by a weighted linear sum of the responses to physical and visual motion presented separately even when the sphere remained earth stationary (the natural cue combination). The magnitude of perceived roll reported was accurate during roll in the dark and was systematically modulated by visual motion. These BP changes suggest that the autonomic responses to combinations of visual and vestibular cues reflect integration of information from the two systems.

Details

show
hide
Language(s):
 Dates: 2008-05
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1167/8.6.1064
BibTex Citekey: 6021
 Degree: -

Event

show
hide
Title: 8th Annual Meeting of the Vision Sciences Society (VSS 2008)
Place of Event: Naples, FL, USA
Start-/End Date: 2008-05-09 - 2008-05-14

Legal Case

show

Project information

show

Source 1

show
hide
Title: Journal of Vision
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Charlottesville, VA : Scholar One, Inc.
Pages: - Volume / Issue: 8 (6) Sequence Number: - Start / End Page: 1064 Identifier: ISSN: 1534-7362
CoNE: https://pure.mpg.de/cone/journals/resource/111061245811050