Animal ResearchAnimal ResearchJohnson LaboratoryAging studies using the nematode worm Caenorhabditis elegansMolecular Neurogenetics LaboratoryStudies of nicotinic cholinergic receptor (nAChR) subunit genes using mouse models.Genetics of Substance Abuse LaboratoryUsing mouse models to study the genetics of alcohol and nicotine behaviors. Hoeffer LabAnimal ResearchTom Johnson LaboratoryHuman Research Studies