Figure 1From: Executive functions and selective attention are favored in middle-aged healthy women carriers of the Val/Val genotype of the catechol-o-methyltransferase gene: a behavioral genetic studyshows the z-scores of executive functions (Wisconsin Card Sorting Test) for the Val/Val, Met/Met and Val/Met genotypes. Asterisks indicate significant differences between the genotypes (*p < 0.05).Back to article page