In this study, the authors examined the association between high and low level of activity and emotional reactivity as two temperamental traits and DRD4 and DAT-1 gene polymorphisms in healthy men aged from 18 to 27 lat (M=21.03; SD=2.23). The data analysis performed with PCR method has shown that the DRD4 polymorphism was significantly associated with emotional reactivity (p=0.027), while no significant association in genotype was observed between activity and emotional reactivity and polymorphism in the DAT-1 gene.
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