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. Author manuscript; available in PMC: 2015 Jan 30.
Published in final edited form as: Psychiatry Res. 2013 Nov 5;215(1):87–94. doi: 10.1016/j.psychres.2013.10.037

Figure 2. Within Pair Differences (Proband - Cotwin) on Neuropsychological Measures Based on Discordant Twin Pairs.

Figure 2

Scores are in SD-units and based on complete MZ pairs with confirmed discordance for MD. DSS=Digit Symbol Substitution; LNS=Letter Number Sequencing; BD=Block Design; VPA-I=Verbal Paired Associates Initial Recall; VPA-D=Verbal Paired Associates Delayed Recall; VO=Vocabulary. Sample Sizes (pairs): DSS=25, LNS=37, BD=26, VPA-I=39, VPA-D=37, VO=39.