[Neurobiological Markers of Autism Spectrum Disorders in Infancy].

The article aims to systematically review recent studies on early symptoms of autism developmental dis- orders. Autism spectrum disorders is a group of neurodevelopmental disorders that is characterized by impairment of communication and social interaction. Nevertheless, the earliest detected features of ASD are impairments of attention disengagement and orientation to novel stimulus, perception abnor- malities of stimuli of magnocellular visual pathway and executive control deficit. The role of attention impairment for manifestation of other symptom of ASD including social deficit is discussed. Early ex- ecutive control deficit may in its turn be associated with symptoms of hyperactivity.