Document Detail

Action relations, semantic relations, and familiarity of spatial position in Balint's syndrome: crossover effects on perceptual report and on localization.
MedLine Citation:
PMID:  17243359     Owner:  NLM     Status:  MEDLINE    
We contrasted effects of the action relationship between objects, relative to effects of semantic relation and familiarity of spatial location, in a patient with Balint's syndrome. We found enhanced perceptual report of objects placed in the correct colocations for action in comparison with when the objects (1) were placed in incorrect locations for action (Experiment 1), (2) were associatively related (Experiment 2), or (3) fell in familiar locations but were not action related (Experiment 4). In contrast, the ability to localize the objects was affected by whether the objects were in familiar as opposed to unfamiliar locations with respect to one another. Action relations between objects facilitate joint attention to both objects but do not facilitate binding to location. Familiar spatial relations facilitate spatial binding, but do not cue joint attention to the stimuli. Effects of action relation on attention and localization can be dissociated from effects of semantic relationship and familiarity of spatial location on attention and localization.
Glyn W Humphreys; M Jane Riddoch; Helen Fortt
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Publication Detail:
Type:  Case Reports; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Cognitive, affective & behavioral neuroscience     Volume:  6     ISSN:  1530-7026     ISO Abbreviation:  Cogn Affect Behav Neurosci     Publication Date:  2006 Sep 
Date Detail:
Created Date:  2007-01-24     Completed Date:  2007-03-02     Revised Date:  2011-02-24    
Medline Journal Info:
Nlm Unique ID:  101083946     Medline TA:  Cogn Affect Behav Neurosci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  236-45     Citation Subset:  IM    
Behavioural Brain Sciences Centre, Hills Building-School of Psychology, University of Birmingham, Edgbaston, Birmingham B15 2TT, England.
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MeSH Terms
Attention / physiology*
Discrimination (Psychology)
Middle Aged
Pattern Recognition, Visual / physiology
Perceptual Disorders / physiopathology*
Reaction Time / physiology
Recognition (Psychology) / physiology*
Space Perception / physiology*
Grant Support
//Wellcome Trust

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

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