In GAD67‐deficient (as a model of schizophrenia) compared to wild‐type mice, males show greater avoidance in interacting with unfamiliar males, reduced preference for investigating unknown females over unknown males, a lack of social odor preference (Sandhu et al., 2014), and no preference between choosing an unfamiliar mouse over an object and a familiar mouse (Zhang, Hill, Labak, Blatt, & Soghomonian, 2014). Here, GAD1 is linked to schizophrenia.