CA2 and schizophrenia: Given the role of the hippocampal-prefrontal cortical pathway in spatial working memory and the involvement of gamma synchrony between the two structures (Hitti and Siegelbaum, 2014) as well as the previous finding that gamma synchrony is impaired in a mouse model of schizophrenia (Sigurdsson et al., 2010), we wondered what contribution CA2 activity makes toward PFC gamma oscillations.