Linked Life Data

16981605

Source:http://linkedlifedata.com/resource/pubmed/id/16981605

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2006-9-19
pubmed:abstractText
The spatial allocation of attention influences estimates of stimulus magnitude, including line length and the line bisection task has been used to assess the asymmetrical allocation of spatial attention. The purpose of this study is to learn if normal subjects' allocation of attention changes as a function of the trunk-head centered spatial position of the line stimuli. Normal subjects were asked to bisect lines placed in five different head-trunk centered special positions (central, right up-distal, left up-distal, right down-proximal, left down-proximal). When compared with the central condition, deviations in the right or left lateral conditions were only significant in the down-proximal conditions, such that the bisection bias significantly shifted direction to the left of the objective midline in left hemispace and to the right of the objective midline in right hemispace, suggesting that stimuli presented in lateral hemispace primarily activate the contralateral hemisphere's attentional systems. The finding that the lines presented in down-proximal lateral hemispace induce a greater spatial bias than lines in up-distal lateral space suggests that the portion of the brain's dorsal visual system, which processes stimuli in down-proximal space, influences the horizontal (right-left) spatial allocation of attention more than does the brain's ventral visual system.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1355-6177
pubmed:author
pubmed:issnType
Print
pubmed:volume
12
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
532-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Distribution of attention in normal people as a function of spatial location: right-left, up-down.
pubmed:affiliation
Department of Neurology and Center for Neuropsychological Studies, University of Florida College of Medicine, and Neurology Service, Department of Veteran Affairs Medical Center, Gainesville, Florida 32610-0236, USA. valeria.drago@neurology.ufl.edu
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't