Hirvasniemi et al. first identified Northern Epilepsy within patients of Northern Finland where patients all shared a homozygous missense mutation of CLN8 [13], but this subtype has also been described to result from other mutations in other populations [14, 15]; (2) Variant Late-infantile NCL (vLINCL) is a more severe phenotype associated with CLN8 mutation first identified in Turkish families. Here, CLN8 is linked to epilepsy.