The coming years will probably see more GWAS studies of psychophysiology phenotypes, perhaps through collaboration among multiple laboratories, because such studies require very large samples (of the order of thousands). For example, resting EEG is being routinely recorded in many laboratories in addition to ERP experiments. In most cases, EEG data can be retroactively standardized by applying re-referencing, re-sampling, filtering, and other transformations when necessary, and such data can be pooled to conduct an adequately powered full genome scan.
