Further investigations have shown that infantile convulsions with choreoathetosis (ICCA) syndrome (Cai et al., 2012; Heron et al., 2012; Lee et al., 2012b) and benign familial infantile epilepsy (BFIE) (de Vries et al., 2012; Heron et al., 2012) are also induced by PRRT2 mutations. This evidence concerns the gene PRRT2 and benign familial infantile epilepsy.