Spatial bias induced by a non-conflictual task reveals the nature of space perception

Dupierrix, Eve, Alleysson, David, Ohlmann, Théophile and Chokron, Sylvie (2008) Spatial bias induced by a non-conflictual task reveals the nature of space perception. Brain Research, 12 1214: 127-135. doi:10.1016/j.brainres.2008.01.021


Author Dupierrix, Eve
Alleysson, David
Ohlmann, Théophile
Chokron, Sylvie
Title Spatial bias induced by a non-conflictual task reveals the nature of space perception
Journal name Brain Research   Check publisher's open access policy
ISSN 0006-8993
1872-6240
Publication date 2008-06-12
Sub-type Article (original research)
DOI 10.1016/j.brainres.2008.01.021
Open Access Status
Volume 12
Issue 1214
Start page 127
End page 135
Total pages 9
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Language eng
Abstract The aim of the present study was to show that space perception depends on sensori-motor experience. We induced spatial biases by a non-conflictual lateralized sensori-motor task on twenty seven right-handed healthy volunteers (left-to-right readers). After a pre-test and before a post-test, which assessed visuo-motor and perceptual subjective midpoint in line bisection, participants performed a short lateralized pointing task (towards the left or right hemispace). Results indicated that this lateralized pointing task induced deviations towards the stimulated hemispace in both the visuo-motor and the perceptual estimations of the subjective line centre. These spatial biases varied as a function of pointing direction (left or right pointing), spatial location and line lengths. These findings suggest that a preceding non-conflictual lateralized sensori-motor experience influences subsequent space perception. Accordingly, ecological sensori-motor experience could be involved in asymmetric perception exhibited by normal individuals and neglect patients.
Keyword Lateralized sensori-motor experience
Line bisection
Pseudoneglect
Unilateral spatial neglect
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Queensland Brain Institute Publications
 
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Created: Thu, 30 Oct 2014, 11:29:48 EST by Debra McMurtrie on behalf of Queensland Brain Institute