Background. The ubiquity of ICTs, the decrease in the age at which digital devices began to be used, the sensitivity of the periods of preschool and primary school age, the extremely high importance of parental position regarding the use of digital devices by young children, with insufficient scientific development of this problem, necessitates obtaining and analyzing empirical data on the use of digital technologies in Russian families with preschool- and primary school- aged children.

Objective. Investigation of the ICTs usage in families with children of preschool (5-7 years old) and primary school (8-11 years old) age.

Design. The at-home study (N=100 parental-child dyads) consisted of a semi-structured interview for preschoolers and questionnaires for primary school aged children and parents of both age groups. It included questions about the level of user activity, digital initiation and culture, digital competency, parental mediation, online risks, psychological well-being and parent-child relationships .

Results. On weekdays, two-thirds (62-64%) of children aged 5–11 spend max. 1 hour on the Internet, and the rest of them spend max. 3 hours. On weekends, 48% of children of 5–11 years old spend online 1–3 hours, with 8% of preschool children and 18% of primary school children spending >3 hours. 5–7 aged children mostly use tablets, while 7–11 olders prefer smartphones. In both age groups, the leading form of digital activity is watching cartoons and videos. Children’s digital games evolve from interest in interacting with objects to preference for role-playing games. 7–1 aged kids begin to explore social networks, and use the Internet for study. 46% of 5–7 year children (46%), and 60% of 8–11 aged children have encountered online risks. Technical and content risks (pop-up banners and videos, frightening and pornographic content, viruses) prevail. 12% of primary school students encounter communication risks as well.

Most parents of preschoolers (70%) choose a strategy of being nearby their child using the Internet. In families with 8–11 aged children, adults are more tend to purposefully educate their child to use online technologies. A third of all adults surveyed admit to being insecure in the issue of online safety.

Background. The paper describes the results of the experimental study of working memory in early schoolchildren and adolescents. The capacity of working memory develops through preadolescence to adolescence, while the developmental changes of representations of serial order are not clear enough so far.

Objective. The accuracy of delayed reproduction of movements (the open polygonal chains, trajectories) reveals. The sample included 32 early schoolchildren (mean age 10.4±0.75 years old) and 25 adolescents (mean age 14.6±0.3 years old). The subjects reproduced trajectories of different length (from 4 to 6 elements) using the graphical tablet. Another factor in the experiment carried out was a mode of stimulus presentation: the trajectories in were presented either as a static line-drawing (static mode) or a small moving pointer (dynamic mode).

Design. The errors of reproduction in two age groups and in different conditions were analyzed. We distinguished three types of errors: (1) severe distortions which are caused by inability to keep the sequence in working memory; (2) insertions or omissions of elements of the trajectory which are related to the problems of encoding the visual spatial information in the motor representation; (3) distortions of proportions of the trajectories, which are related with visual-motor coordination during motor reproduction of the sequences.

Research results showed that in adolescence the accuracy of delayed reproduction is better than in early ages. The most obvious difference in accuracy between the groups of early schoolchildren and adolescents were observed in dynamic mode. The analysis of different types of errors revealed that adolescents less often make insertions and omissions of elements. It may be caused by development of executive functions in adolescents.

Conclusion. The study showed that the capacity of working memory increases in adolescents. In addition, the precision of the representation of serial information are higher in adolescents in the more complicated dynamic mode.