C9orf72 and amyotrophic lateral sclerosis: A higher frequency of positive schizotypy symptoms was found in C9orf72 compared to noncarriers, in line with previous findings of prominent neuropsychiatric presentation across bvFTD [11, 31, 32] and ALS [33] with C9orf72. These findings may have important clinical implications given the associated risk of progression into psychosis.