Berns mixes real samples of both and puts them with the blossoms in a light booth.
Emory's Berns has shown that people differ in how they respond to expected pain.
Mr. ROY BERNS (Scientist, University of Rochester in New York): We're in the spectral color reproduction lab.
Mr. BERNS: It certainly changed what he was trying to achieve, which was to create this notion of luminosity.
And iconoclasts, especially successful ones, have an "affinity for new experiences, " according to the Emory University neuroscientist Gregory Berns.
Mr. BERNS: We can see that, in fact, this quinacridone violet is really a very bad match under gallery lighting.
During Prohibition the owners (and cousins) Jack Kreindler and Charlie Berns had an impressively complex system to thwart the authorities.
Textile curator Suzanne Thomassen-Krauss says Berns helped them find a new backing for the flag, one that won't distort its true colors.
Roy Berns says what curators and conservators want is to banish the effects of age and the unintended quirks of light and color.
Pipes's nomination has been endorsed by, among others, Fouad Ajami, Walter Berns, Donald Kagan, Sir John Keegan, Paul Kennedy, Harvey Mansfield and James Q.
"There is probably some reward or kick in conforming to a group, " says Berns, who believes most buying decisions are driven by the subconscious.
For example, Berns' unaged version showed how Seurat employed simultaneous contrast.
To illustrate, Berns takes me to a sunny hillside in Rochester.
Berns recently put 30 subjects into MRI machines, where he asked them to compare 54 pairs of abstract three-dimensional images and decide if they were alike or different.
Mr. BERNS: I ended up calling this work digital rejuvenation.
Mr. BERNS: If you look at the flowers, we're seeing changes in lightness, changes in chroma, how much color, but also we see slight changes in hue going from purplish to bluish to reddish.
By measuring relative degrees of activation in the parietal lobe, an area involved in integrating visual images, and in the prefrontal cortex, where decision making takes place, Berns says, he could determine that the group changed what the reporter perceived.
Gregory S. Berns, a psychiatrist at Emory, is using brain imaging to demonstrate the effects of peer pressure on individual perception, with the idea of explaining the development of fads, from investment trends to the popularity of Burberry plaids and belly button rings.
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