Linked Life Data

11370972

Source:http://linkedlifedata.com/resource/pubmed/id/11370972

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1470
pubmed:dateCreated
2001-5-23
pubmed:abstractText
When a visual stimulus is continuously moved behind a small stationary window, the window appears displaced in the direction of motion of the stimulus. In this study we showed that the magnitude of this illusion is dependent on (i) whether a perceptual or visuomotor task is used for judging the location of the window (ii) the directional signature of the stimulus, and (iii) whether or not there is a significant delay between the end of the visual presentation and the initiation of the localization measure. Our stimulus was a drifting sinusoidal grating windowed in space by a stationary, two-dimensional, Gaussian envelope (sigma=1 cycle of sinusoid). Localization measures were made following either a short (200 ms) or long (4.2 s) post-stimulus delay. The visuomotor localization error was up to three times greater than the perceptual error for a short delay. However, the visuomotor and perceptual localization measures were similar for a long delay. Our results provide evidence in support of the hypothesis that separate cortical pathways exist for visual perception and visually guided action and that delayed actions rely on stored perceptual information.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0962-8452
pubmed:author
pubmed:issnType
Print
pubmed:day
7
pubmed:volume
268
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
973-7
pubmed:dateRevised
2008-11-20
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Evidence for dissociation between the perceptual and visuomotor systems in humans.
pubmed:affiliation
Information Sciences Division, ATR International, Soraku-gun, Kyoto, Japan.
pubmed:publicationType
Journal Article, Comparative Study