DCDC2 and deafness: This functional implication might have importance for human communication skills as suggested by mutations in DCDC2 that associate with a recessive form of deafness (DFNB66), variation of gray matter volume in language-related brain regions of schizophrenia patients, reading disability (RD), and dyslexia (DYX2) (Meng et al., 2005; Jamadar et al., 2011; Newbury et al., 2011; Grati et al., 2015).