HOMER1 and psychiatric disorder: Homer1 activity has been shown to influence the functioning of other proteins and protein complexes linked to psychiatric disorders through genetic variants, such as FMRP [28, 42, 43], CYFIP1 [27, 44, 45], Arc [27, 46], SHANK [10, 47, 48], and the calcium channel Cav1.2 [16, 42].