Medicare Part B does not cover routine hearing exams or hearing aids. Medicaid, however, may cover some of the cost of hearing aids, depending on the state you live in. That's because each state operates its own Medicaid program, and each program has slightly different rules and coverage.
Research shows that infants display behaviours that are important beginnings for theory-of-mind development (see details in Mooreâs and Sommerville âs papers in the chapter on social cognition 9,10). By age 2, children clearly show awareness of the difference between thoughts in the mind and things in the world.
It is thought that Piaget overestimated the extent of egocentrism in children. Egocentrism is thus the child's inability to see other people's viewpoints, not to be confused with selfishness. The child at this stage of cognitive development assumes that their view of the world is the same as other peoples.