The wave of consortia dedicated to the identification of phenotype-genotype associations has been driven in our opinion by one basic fact: no single investigator has access to a large enough sample size to profitably conduct genetic association studies of complex traits. To make progress, she must share her data and combine it with other data. In the world of neurobehavioral endophenotypes, the way has been led thus far by the ENIGMA consortium, which now is branching out into electrophysiology with the hope of building meta-samples in the tens of thousands of individuals.
