Table 1.

Explanation of parameters fit in LMM.

Parameter	Details
y	Total distance moved (LPR) or normalized gene expression value for a single gene
α	Fixed effect of exposure
ß	Random effect due to family~N(0, σ2G)
αß	Random interaction term~N(0, σ2GxE);
ϵ	Residual error~N(0, σ2E)