Dysmetabolic oligophrenia

Oligophrenia (from ancient Greek ὀλίγος - small, φρονήσκω - I think, I reason) is a mental retardation syndrome characterized by a qualitative inferiority of thinking, memory, and emotions. This is a mental retardation that is caused by a lack or excess of chemical compounds necessary for the formation of the central nervous system. Among the many types of oligophrenia, one of the most common forms is Metabolic oligophrenia (dysmetabolic disorders). Name of this form