Document Detail


Object-location memory: a lesion-behavior mapping study in stroke patients.
MedLine Citation:
PMID:  19733953     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Object-location memory is an important form of spatial memory, comprising different subcomponents that each process specific types of information within memory, i.e. remembering objects, remembering positions and binding these features in memory. In the current study we investigated the neural correlates of binding categorical (relative) or coordinate (exact) position information with objects in memory. Therefore, an object-location memory battery was used, including different task conditions assessing object-location memory, i.e. memory for position information per se, and binding object information with coordinate and categorical position information. Sixty-one stroke patients with focal brain lesions were examined and compared with 77 healthy matched controls. The lesion subtraction method was used to define the area of overlap. Results indicate an important role of the left posterior parietal cortex in the binding of both categorical and coordinate positions with object information. Additionally, the hippocampus seems important for categorical object-location memory. This suggests that categorical and coordinate object-location memory depend on similar cognitive and neural systems.
Authors:
Marieke van Asselen; Roy P C Kessels; Catharina J M Frijns; L Jaap Kappelle; Sebastiaan F W Neggers; Albert Postma
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-09-05
Journal Detail:
Title:  Brain and cognition     Volume:  71     ISSN:  1090-2147     ISO Abbreviation:  Brain Cogn     Publication Date:  2009 Dec 
Date Detail:
Created Date:  2009-11-02     Completed Date:  2009-12-09     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8218014     Medline TA:  Brain Cogn     Country:  United States    
Other Details:
Languages:  eng     Pagination:  287-94     Citation Subset:  IM    
Affiliation:
IBILI-Faculty of Medicine, University of Coimbra, Portugal. masselen@ibili.uc.pt
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Brain / physiopathology*,  radiography
Brain Mapping
Female
Humans
Image Processing, Computer-Assisted
Magnetic Resonance Imaging
Male
Memory / physiology*
Middle Aged
Neuropsychological Tests
Psychomotor Performance / physiology
Space Perception / physiology*
Spatial Behavior / physiology
Stroke / physiopathology*,  radiography

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


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