Indeed, Homer1a mutant mice have deficits in contextual memory consolidation and retention (Banerjee et al., 2016; Datko et al., 2017; Inoue et al., 2009), whereas specific overexpression of Homer1b/c in the dorsal hippocampus reverses stress‐induced cognitive deficits (Wagner et al., 2013). This evidence concerns the gene HOMER1 and Cognitive impairment.