conduction 71, a prominent biological feature of the gene modules identified with association to alcohol drinking behavior. Group2 also contains long non-coding RNAs (ncRNAs) such as NCRNA00092, NCRNA00174, and NCRNA00284. The function of these ncRNAs is currently unknown, but may be important in gene regulation and human disease 72. The network of long ncRNAs may indicate a cooperative role in cellular plasticity that shapes patterns of human alcohol consumption.