Abstract
The article informs about the results of theoretical and practical study the features of the implementation of cognitive load by adolescents with intellectual disabilities. The involvement of the cerebrospinal system and, in particular, the brain, in the performance of the cognitive load was determined using the standardized P300 method of evoked potentials, traditionally used to detect cognitive impairments and assess the brain function in children with problems of behavior, attention, and learning. As a result of the experiment, it was shown that with normative cognitive load - the allocation of significant stimulus - at the group of adolescents with normal intellectual development, a statistically significant change in wave amplitude and latency was observed Р3 wave. At the group of adolescents with intellectual disabilities these results were not revealed. Recommendations. The authors have developed pedagogical methods of working with adolescents with intellectual disabilities.