In the first phase of the study, the researchers showed that their volunteers (Surrey university students) were slower to notice a target shade of blue when it flashed up against a blue background of a different hue than when it flashed up against a green background.
Several senators who voted against background checks have taken hits in their approval ratings.
The rings must never be shown in Olympic yellow on a white background, because yellow does not contrast enough against a white background.
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When the black color splashed against the background, it created definition and a sense of space.
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"There's no coherent policy argument against expanding background checks, " argues Washington Post blogger Greg Sargent.
However, this was happening against a background of very high oil prices and cheap foreign credit.
These problems came against a background of years of contentious negotiations between Motorola and Teledesic.
Block also took some sharp images Tuesday against the background of a colorful twilight.
Against that background, what kind of specific stocks do you look to at this point?
Against that background, it seems hard to believe how well Indonesia is doing today.
Against this background, it is hardly surprising that the Inflation Report struck a hawkish note.
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Against a background like this, a little waywardness in the world of macroeconomics seems entirely forgivable.
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Europe could the push through budgetary and structural reform against a background of global expansion.
Against that background, both parties need to be far more willing to think the unthinkable.
Against this background, constitutional change had the estimable advantage of appearing radical but costing little.
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Against this background DreamWorks is set to release its second new movie of 2011: Puss in Boots.
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It is also important to judge the religious-moral vote against the background of American religiosity in general.
It was against this background that Mr Van Miert stepped in to examine the Boeing-McDonnell Douglas merger.
Against that background, the party should be doing far, far better this year than it looks like doing.
Against this background, investors are trying to find out what the opportunities are.
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He stood in a severe-looking suit against the background of a brown stage.
Against this background, the success enjoyed by Brit Insurance is even more remarkable.
Mr Howard's speech came against a background of feverish debate about the performances of the various the leadership contenders.
Against that background a podium finish looked wildly unrealistic, but Hamilton dug deep to move his way though the field.
The violence is also taking place against the background of the run-up to Kosovo's parliamentary elections, due in the autumn.
It is against this background that the famous depiction of the youthful Good Shepherd, sitting among snow-white sheep, is placed.
Against a background of a faltering economy and stockmarket, there have been odd stirrings among a shunned group of shares.
Downton Abbey is what George Gilder would call the entropic disruption to the background noise of revolt against the old world.
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But, just like the failed settlement in Washington, it can be understood only against the background of the wider tobacco war.
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