Linked Life Data

7753168

Source:http://linkedlifedata.com/resource/pubmed/id/7753168

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6527
pubmed:dateCreated
1995-6-19
pubmed:abstractText
Functional magnetic resonance imaging (fMRI) was used to measure local haemodynamic changes (reflecting electrical activity) in human visual cortex during production of the visual motion aftereffect, also known as the waterfall illusion. As in previous studies, human cortical area MT (V5) responded much better to moving than to stationary visual stimuli. Here we demonstrate a clear increase in activity in MT when subjects viewed a stationary stimulus undergoing illusory motion, following adaptation to stimuli moving in a single local direction. Control stimuli moving in reversing, opposed directions produced neither a perceptual motion aftereffect nor elevated fMRI levels postadaptation. The time course of the motion aftereffect (measured in parallel psychophysical tests) was essentially identical to the time course of the fMRI motion aftereffect. Because the motion aftereffect is direction specific, this indicates that cells in human area MT are also direction specific. In five other retinotopically defined cortical areas, similar motion-specific aftereffects were smaller than those in MT or absent.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0028-0836
pubmed:author
pubmed:issnType
Print
pubmed:day
11
pubmed:volume
375
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
139-41
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Visual motion aftereffect in human cortical area MT revealed by functional magnetic resonance imaging.
pubmed:affiliation
Massachusetts General Hospital Nuclear Magnetic Resonance Center, Charlestown 02129, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.