Explain Changes in Mental Development of Infants?
There is evidently an increase in the brain size. There is a rapid increase in the number of brain cells in the first 5-6 months after birth. Thereafter, the cell division declines but continues till the second year of age. By the age of 10 years, many children have a brain weight of an adult. The effect of nutrition on brain development and IQ are difficult to determine and as the child starts going to school, this relationship is even more difficult to ascertain.