According to researcher Sheri Madigan, children who spent more time using TV or computers showed poorer performance on developmental tasks with regard to memory, attention, language and communication skills, social interactions, and problem solving than children who had limited access to technology. Recommended use for children is one hour per day for quality educational programs.
The full article can be accessed here.
Park, A. (2019, February). Too much screen time can have lasting consequences for young children’s brains. Retrieved from http://time.com/5514539/screen-time-children-brain/.