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Cromer, Jason A.; Machon, Michelle; Miller, Earl K. – Journal of Cognitive Neuroscience, 2011
The PFC plays a central role in our ability to learn arbitrary rules, such as "green means go." Previous experiments from our laboratory have used conditional association learning to show that slow, gradual changes in PFC neural activity mirror monkeys' slow acquisition of associations. These previous experiments required monkeys to repeatedly…
Descriptors: Stimuli, Prior Learning, Brain Hemisphere Functions, Animals
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Renoult, Louis; Debruille, J. Bruno – Journal of Cognitive Neuroscience, 2011
The N400 ERP is an electrophysiological index of semantic processing. Its amplitude varies with the semantic category of words, their concreteness, or whether their meaning matches that of a preceding context. The results of a number of studies suggest that these effects could be markedly reduced or suppressed for stimuli that are repeated.…
Descriptors: Semantics, Brain Hemisphere Functions, Diagnostic Tests, Language Processing