Linked Life Data

9842756

Source:http://linkedlifedata.com/resource/pubmed/id/9842756

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
1999-2-9
pubmed:abstractText
Misbisection of lines is thought to represent an attentional bias. When radial lines (intersection of the midsagittal and transverse planes) are presented below eye level, normal subjects are biased toward far peripersonal space in the visual modality and to near peripersonal space in the tactile modality. These errors may be related to a body centered, a retinotopic, or an object centered attentional bias. The purpose of this study was to contrast the body centered and retinotopic-objective centered hypotheses by having 12 normal subjects perform visual and tactile bisections of radial lines that are above and below eye level. The top of the page, which may be defined by retinotopic or object centered coordinates, contains the portion of the line that is most distant from our bodies when the page is below eye level. However, above eye level, the top of a radial line would be the portion of the page that is most proximal to our bodies. We observed that when stimuli are presented below eye level, normal subjects have a visual bias toward far peripersonal space or the top of the page or both, and have a tactile bias in the opposite direction. In the above eye position we found no overall bias in either modality. Because above eye level the body centered bias should have remained the same but the retinotopic or object centered bias should have reversed, our results suggest that the body and object centered or retinotopic biases, which are oriented in opposite directions, nullified each other.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0028-3932
pubmed:author
pubmed:issnType
Print
pubmed:volume
36
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1097-101
pubmed:dateRevised
2009-11-11
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Attentional bias in normal subjects performing visual and tactile radial line bisections.
pubmed:affiliation
College of Medicine, University of Florida, Gainesville, USA.
pubmed:publicationType
Journal Article, Clinical Trial, Research Support, U.S. Gov't, Non-P.H.S., Randomized Controlled Trial