Document Detail


Leftward motion restores number space in neglect.
MedLine Citation:
PMID:  19111292     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In the present study, a group of patients with left-sided neglect performed a number comparison task that co-occurred either with coherent motion in different directions or with random motion. Their performance was compared to that of a healthy control group and to a group of patients with right hemisphere damage (RHD) but no signs of neglect. The presence of leftward motion alleviated the difficulties that neglect patients typically show for a number smaller than the reference number 5 (i.e., number 4). Moreover, the standard distance effect was only present when the task co-occurred with leftward motion. These effects were not present in a group of participants with RHD without neglect or in a control group. The present data extend the effects of optokinetic stimulation (OKS) to representational neglect, suggesting that an external redirection of attention by the perception of motion may restore the altered access to the representation of the mental number line in neglect.
Authors:
Elena Salillas; Alessia Granà; Montserrat Juncadella; Imma Rico; Carlo Semenza
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-11-14
Journal Detail:
Title:  Cortex; a journal devoted to the study of the nervous system and behavior     Volume:  45     ISSN:  0010-9452     ISO Abbreviation:  Cortex     Publication Date:  2009 Jun 
Date Detail:
Created Date:  2009-04-06     Completed Date:  2009-06-30     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0100725     Medline TA:  Cortex     Country:  Italy    
Other Details:
Languages:  eng     Pagination:  730-7     Citation Subset:  IM    
Affiliation:
Psychology Department, University of Trieste, Italy. elena.salillas@utsa.edu
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Attention / physiology
Case-Control Studies
Form Perception / physiology*
Functional Laterality / physiology*
Humans
Mathematical Concepts*
Middle Aged
Motion Perception / physiology*
Perceptual Disorders / etiology,  physiopathology*
Recognition (Psychology) / physiology*
Reference Values
Space Perception / physiology
Stroke / complications
Visual Fields / physiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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