Abstract: Savant syndrome is a rare condition that occurs together with autism spectrum disorder (ASDs; autism, atypical autism and Asperger syndrome). Savant syndrome refers to individuals, who despite serious, mental impairments show remarkable abilities on certain, often small domains. About 10 percent of individuals with ASDs have savant syndrome in varying degrees. The causes of savant ... [Show full abstract] syndrome are unclear. However, cognitive hypotheses claim that impairments in theory of mind, executive functions may predispose to talent in savant domains, and so does a detail-focused cognitive style. Alternatively, savant syndrome may be caused by a developmental disorder of the brain, or in some cases by an acquired brain lesion. These hypotheses do not so far seem to account for the causes of this fascinating syndrome.