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Research is devoted to revealing the relation of the complex of mental functions and their components with the ability to recognize emotions from facial expressions and with the success of learning this skill in children with autism spectrum disorder (ASD). The set includes characteristics of the visual perception, properties of attention, properties of thinking and visual spatial analysis and synthesis. The study involved 19 children with ASD at the age of 6 to 12 years, including 2 girls and 17 boys. The training consisted of 12 sessions. Research showed that the success of emotion recognition from facial expressions in children with ASD associated with the level of development of visual spatial analysis and synthesis. It is also revealed that the success of emotion recognition training is connected with the level of development of visual spatial analysis and synthesis, abstract reasoning, and a concept formation.

Allocation of informative regions in images depends on a visual task. We propose two criteria for allocation of informative regions in images considering visual recognition of objects in images using a space-variant foveal filter. The first criterion relates to descriptor completeness. This criterion is formalized as a measure of similarity of an original image to an image reconstructed from foveal filter responses. The second criterion relates to descriptor distinctiveness. This criterion relates to the problem of retrieving discriminative and repeatable features in images of objects. It is formalized as a variation of descriptor elements of different objects within the same class. We reveal that regions of interest produced by these criteria are distributed in the areas of high variety of brightness gradients orientations.

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