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. Author manuscript; available in PMC: 2012 Jun 1.
Published in final edited form as: Neurobiol Aging. 2009 Jun 25;32(6):1124–1137. doi: 10.1016/j.neurobiolaging.2009.05.015

Figure 1.

Figure 1

The effect of ace Insertion-Deletion genotype on the number of Wisconsin Card Sorting Test (WCST) total errors. The ace genotypes are: II – insertion homozygotes; I/D – insertion-deletion heterozygotes; DD – deletion homozygotes. Significance levels for comparisons (two-tailed): *p < .05; **p < .01. The scores are least-square adjusted means from the model; the bars represent standard errors of those means.