Chunk #27 — Results — Response to d-Amphetamine Analyses

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Evaluation of genetic variability in the dopamine receptor D2 in relation to behavioral inhibition and impulsivity/sensation seeking: an exploratory study with d-amphetamine in healthy participants.

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(p ≤.05) conditions in the A/A group. However, in the combined A/G + G/G genotype, 10-mg d-amphetamine (p ≤.05) increased stop RT in comparison with the placebo. Administration of other doses of d-amphetamine did not produce results that were different from placebo. Go RTs did not interact with any of the DRD2 loci included in this study. (See Figure 2, Panels A and B, for stop and go RTs by rs12364283.)