Linked Life Data

17907816

Source:http://linkedlifedata.com/resource/pubmed/id/17907816

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2007-10-2
pubmed:abstractText
Object naming is commonly used for demonstrating semantic memory abilities, known to be affected in normal aging. Yet, neuropsychological assessments of older people do not reflect irregularities. The authors used a test with 2 levels of naming complexity by 2 kinds of stimuli: common objects pictured from a conventional viewpoint (usual condition) or from an unconventional viewpoint (unusual condition). The authors studied naming performance with 129 healthy participants, aged 20-85 years. For the usual stimuli, the success rate was high (90.9%), with no reduction in performance until 65 years of age. However, for the unusual stimuli, there was a marked reduction in performance with age. Brain activity was studied on 11 healthy young participants (20-30 years of age) using functional magnetic resonance imaging. The usual condition activated brain regions associated with visual perception, language, and memory. Additional brain regions associated with semantic searching and decision making were obtained in the unusual condition in the prefrontal cortex (Brodmann's area [BA] 9 and BA 47) and anterior cingulate (BA 32). The results suggest that the poor naming performance for unusual-viewed objects in older people might be related to the shrinkage of frontal gray matter with age.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0735-7044
pubmed:author
pubmed:copyrightInfo
(PsycINFO Database Record (c) 2007 APA, all rights reserved).
pubmed:issnType
Print
pubmed:volume
121
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
836-44
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Prefrontal and parietal regions are involved in naming of objects seen from unusual viewpoints.
pubmed:affiliation
Department of Behavioral Sciences, College of Judea and Samaria, Ariel, Israel. Arielag@yosh.ac.il
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't