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money — the visual system represented it more strongly," said lead researcher John Serences, assistant professor of psychology at the University of California, San Diego. Rewards affected information processing in this initial sense and also in parts of the brain where higher cognitive thinking takes place.
"Though it is too early to say how the journal Neuron. Further study could help researchers better understand how addictions influence information processing, Serences said. Just seeing food or drugs, for example, might have a larger impact on the psyches of some people than others. this relates to perception," Serences said, "it raises the intriguing possibility that we see things we value more clearly — much like the way the brain responds to a bright object versus a dimly lit one."In fact, the brain seemed to know more than a participant was able to call to mind: The changes in neural activity were a better sign of an object's past value than what subjects recalled when asked about those objects."It's as if the visual system is telling you how valuable something has been to you in the past," Serences said, "and telling it to you like it is, even though you can't consciously identify it."The findings are reported in the Dec. 26 issue of