GNB1 and convulsion: Gnb1 expression in VTA, NAc and HIPP significantly covaried with active lever preference (Figure 3D‐F) and alcohol‐related phenotypes (Figure 3G‐I): ethanol preference in the two bottle choice paradigm,36 handling induced convulsions following ethanol injection,37 and ethanol consumption using the drinking in the dark paradigm (GeneNetwork record IDs: 10140, 11380 and 18877).