Left to right: Representational biases for numbers and the effect of visuomotor adaptation

Loftus, Andrea M., Nicholls, Michael E.R., Mattingley, Jason B. and Bradshaw, John L. (2008) Left to right: Representational biases for numbers and the effect of visuomotor adaptation. Cognition, 107 3: 1048-1058. doi:10.1016/j.cognition.2007.09.007

Author Loftus, Andrea M.
Nicholls, Michael E.R.
Mattingley, Jason B.
Bradshaw, John L.
Title Left to right: Representational biases for numbers and the effect of visuomotor adaptation
Journal name Cognition   Check publisher's open access policy
ISSN 0010-0277
Publication date 2008-06-01
Year available 2007
Sub-type Article (original research)
DOI 10.1016/j.cognition.2007.09.007
Open Access Status
Volume 107
Issue 3
Start page 1048
End page 1058
Total pages 11
Editor J. Mehler
Place of publication Amsterdam, Netherland
Publisher Elsevier BV
Language eng
Subject C1
380103 Biological Psychology (Neuropsychology, Psychopharmacology, Physiological Psychology)
780108 Behavioural and cognitive sciences
Abstract Adaptation to right-shifting prisms improves left neglect for mental number line bisection. This study examined whether adaptation affects the mental number line in normal participants. Thirty-six participants completed a mental number line task before and after adaptation to either: left-shifting prisms, right-shifting prisms or control spectacles that did not shift the visual scene. Participants viewed number triplets (e.g. 16, 36, 55) and determined whether the numerical distance was greater on the left or right side of the inner number. Participants demonstrated a leftward bias (i.e. overestimated the length occupied by numbers located on the left side of the number line) that was consistent with the effect of pseudoneglect. The leftward bias was corrected by a short period of visuomotor adaptation to left-shifting prisms, but remained unaffected by adaptation to right-shifting prisms and control spectacles. The findings demonstrate that a simple visuomotor task alters the representation of space on the mental number line in normal participants.
Keyword Mental number line
Mental representation
Visuomotor adaptation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Available online 29 October 2007.

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2008 Higher Education Research Data Collection
Queensland Brain Institute Publications
School of Psychology Publications
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Citation counts: TR Web of Science Citation Count  Cited 42 times in Thomson Reuters Web of Science Article | Citations
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Created: Tue, 06 May 2008, 21:10:34 EST by Mrs Jennifer English on behalf of School of Psychology