Trunk- and head-centred spatial coordinates do not affect free-viewing perceptual asymmetries

Nicholls, MER, Mattingley, JB, Bradshaw, JL and Krins, PW (2003) Trunk- and head-centred spatial coordinates do not affect free-viewing perceptual asymmetries. Brain And Cognition, 53 2: 247-252. doi:10.1016/S0278-2626(03)00120-9


Author Nicholls, MER
Mattingley, JB
Bradshaw, JL
Krins, PW
Title Trunk- and head-centred spatial coordinates do not affect free-viewing perceptual asymmetries
Journal name Brain And Cognition   Check publisher's open access policy
ISSN 0278-2626
Publication date 2003-01-01
Sub-type Article (original research)
DOI 10.1016/S0278-2626(03)00120-9
Volume 53
Issue 2
Start page 247
End page 252
Total pages 6
Place of publication San Diego
Publisher Academic Press Inc Elsevier Science
Language eng
Abstract Turning the trunk or head to the left can reduce the severity of leftward neglect. This study sought to determine whether turning the trunk or head to the right would reduce pseudoneglect: A phenomenon where normal participants underestimate the rightward features of a stimulus. Participants made luminance judgements of two mirror-reversed greyscales stimuli. A preference for selecting the stimulus dark on the left was found. The effect of trunk-centred coordinates was examined in Expt. I by facing the head toward the display and turning the trunk to the left, right or toward the display. Head-centred coordinates were examined in Expt. 2 by directing the eyes toward the display and then turning the head and trunk. No effect of rotation was observed. It was concluded that the leftward bias for the greyscales task could be based on an object-centred attentional bias or left-to-right eye scanning habits. (C) 2003 Elsevier Inc. All rights reserved.
Keyword Neurosciences
Psychology, Experimental
In-line Bisection
Unilateral Neglect
Visual Neglect
Length Representation
Hemispatial Neglect
Reading Habits
Pseudoneglect
Performance
Attention
Stimulation
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
Queensland Brain Institute Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 7 times in Thomson Reuters Web of Science Article | Citations
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Created: Wed, 17 Oct 2007, 22:26:37 EST