Linked Life Data

20675800

Source:http://linkedlifedata.com/resource/pubmed/id/20675800

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2010-8-2
pubmed:abstractText
We demonstrate qualitative dissociations of brightness processing in visuomotor priming and conscious vision. Speeded keypress responses to the brighter of two luminance targets were performed in the presence of preceding dark and bright primes (clearly visible and flanking the targets) whose apparent brightness values were enhanced or attenuated by a visual illusion. Response times to the targets were greatly affected by consistent versus inconsistent arrangements of the primes, relative to the targets (response priming). Priming effects could systematically contradict subjective brightness matches, such that one prime could appear brighter than the other but could prime as if it were darker. Systematic variation of the illusion showed that response-priming effects depended only on local flanker-background contrast, not on the subjective appearance of the flankers. Our findings suggest that speeded motor responses, as opposed to conscious perceptual judgments, access an early phase of lightness and brightness processing prior to full lightness constancy.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1943-393X
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
72
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1556-68
pubmed:dateRevised
2011-2-24
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Response priming driven by local contrast, not subjective brightness.
pubmed:affiliation
Faculty of Social Sciences, Psychology I, University of Kaiserslautern, Erwin-Schrödinger-Str. Geb. 57, D-67663 Kaiserslautern, Germany. thomas.schmidt@sowi.uni-kl.de
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't