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. Author manuscript; available in PMC: 2013 Aug 22.
Published in final edited form as: Genes Brain Behav. 2010 Jul 20;9(7):759–767. doi: 10.1111/j.1601-183X.2010.00613.x

Table 3.

Principal components analysis of PPI3, PPI6 and PPI12

F2
AIL
PC1 PC2 PC3 PC1 PC2 PC3
Proportion of Var 0.800 0.131 0.0690 0.809 0.124 0.0672
PPI3 −0.452 0.721 0.525 −0.391 0.839 0.379
PPI6 −0.61 0.18 −0.772 −0.577 0.0976 −0.811
PPI12 −0.651 −0.669 0.358 −0.717 −0.536 0.445

Our analysis identified three principal components that were similar in the F2 and AIL in terms of the proportion of variance and the loadings of the prepulse variables. The first principal component (PC1) accounted for more then 80% of the total trait variance and was used for QTL analysis (see Fig. S1).