Children with ASD (4.5-7.7 years), were examined using a psychodiagnostic scale with parallel EEG registration. Significant differences from the norm were found. After one-year correction similar repeated measures (imitation, perception, hand- and common motor skills, visual-motor coordination, non- and verbal thinking) were conducted. Children were divided into two sub-groups, one of which was more successful in task performance. Another group was unsuccessful in the same tasks. The links between positive dynamics on psychological tests and changes in bioelectric activity were observed.