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Physical development. Typically grows between 1 and 1.5 inches (2.5 and 3.8 cm) and gains about 2 pounds (910 g). [20] Motor development. Hands kept in tight fists. [21] Equal movement of arms and legs on both sides. [21] Able to briefly hold up head when in prone position. [21] Arm thrusts are jerky. [22] Brings hands close to eyes and mouth. [22]
Though emerging adults have not lived as long as older adults they tend to have better solutions to problems than older adults because of higher mental flexibility, which helps emerging adults to generate a greater number of solutions to a given problem. This shows that practical intelligence is prominent during emerging adulthood. [5]
Erikson's stages of psychosocial development, as articulated in the second half of the 20th century by Erik Erikson in collaboration with Joan Erikson, [1] is a comprehensive psychoanalytic theory that identifies a series of eight stages that a healthy developing individual should pass through from infancy to late adulthood.
Adult development is a somewhat new area of study in the field of psychology. Previously it was assumed that development would cease at the end of adolescence. Further research has concluded that development continues well after adolescence and into late adulthood.
Children with Down syndrome or developmental coordination disorder are late to reach major motor skills milestones like sucking, grasping, rolling, sitting up and walking, talking. Children with Down syndrome sometimes have heart problems, frequent ear infections, hypotonia, or undeveloped muscle mass.
Development before birth, or prenatal development (from Latin natalis 'relating to birth') is the process in which a zygote, and later an embryo, and then a fetus develops during gestation. Prenatal development starts with fertilization and the formation of the zygote , the first stage in embryonic development which continues in fetal ...
Puberty is considered delayed when the child has not begun puberty when two standard deviations or about 95% of children from similar backgrounds have. [7] [8] [9]In North American girls, puberty is considered delayed when breast development has not begun by age 13, when they have not started menstruating by age 15, [2] and when there is no increased growth rate. [8]
However, they now can think in images and symbols. Other examples of mental abilities are language and pretend play. Symbolic play is when children develop imaginary friends or role-play with friends. Children's play becomes more social and they assign roles to each other. Some examples of symbolic play include playing house, or having a tea party.