CSMD1 and schizophrenia: These neurobiologic, genetic and genomic data nominate CSMD1 as a candidate for studies that seek: a) influences of common human allelic variation on CSMD1 expression, b) influences of variation in CSMD1 expression on responses to rewarding addictive substances in mouse models, c) influences of variation in CSMD1 expression on cognitive phenotypes that may model features relevant to schizophrenia and d) comparisons with other physiological and behavioral differences in mice with altered csmd1 expression.