As the volumetric difference in the ACC was trending towards significance, we included it as a covariate when comparing group differences of V T and did not find a significant effect (F 2,21 = 3.10, p = 0.07). fMRI analysis Working memory-related neural activation (defined as contrast of 1- & 2-back minus 0-back contrast) in both controls and patients can be seen in Fig. 2 B and C respectively, with activation patterns seen in both groups, including the prefrontal and cingulate cortices.
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Working memory processes and the histamine-3 receptor in schizophrenia: a [<sup>11</sup>C]MK-8278 PET-fMRI study.
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