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The contribution of dopamine to working memory has been studied extensively [1-3]. Here, we exploited its well characterized effects [1-3] to validate a novel human in vivo assay of ongoing synaptic [4, 5] processing. We obtained magnetoencephalographic (MEG) measurements from subjects performing a working memory (WM) task during a within-subject,(More)
Identification of the main areas in the brain that respond specifically to the "suffering" components of pain has been achieved by using serial dynamic measurements of blood flow as an index of synaptic activity. Specific response to a repeated painful thermal stimulus as compared to a non-painful thermal stimulus in normal male volunteers identified the(More)
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