Experimental Factor Ontology identifier EFO_0020039 (neuronal ceroid-lipofuscinosis, dominant/recessive) can be described as follows. Neuronal ceroid lipofuscinoses (NCLs) are a group of dominant/recessive inherited progressive degenerative brain diseases characterized clinically by a decline of mental and other capacities, epilepsy, and vision loss through retinal degeneration, and histopathologically by intracellular accumulation of an autofluorescent material, ceroid lipofuscin, in the neuronal cells in the brain and in the retina.