What are the indicators of infant intelligence development?

Nowadays, many people who have just become parents take meticulous care of their babies since birth, and pay close attention to the baby's daily situation, such as when the baby starts to smile, when the baby moves his eyes and head to look at people, and how the baby reacts to some words of the parents. However, when babies of the same age are seen learning faster than their own, they worry that their babies’ intellectual development will not keep up.

For normal babies, they will smile at one month old. At 2 months old, the baby can lift his head when he is lifted up from prone position and will smile at people. At 3 months old, the baby's head does not droop when he is propped up from his back, and can be lifted up when he is held in an upright position. He can turn over while lying down, kick his feet, make fists and stretch his hands, move his legs and feet around, and is very active. When shaking a toy that makes a sound, he can turn to the side where the sound is made, recognize the bottle, and turn his head towards the place where the sound is made, which means that his hearing is developing normally; his eyes can follow the movement of objects, and he will smack his lips when he sees the breast or bottle, which means that his vision is developing normally; he cries when he is hungry, angry, frightened or feeling unwell, which means that his central nervous system is developing normally.

After half a year, the baby can turn over, stand with support under the armpits, jump, hold objects with several fingers, reach out to grab things, and respond when called; the baby can sit steadily, crawl, and recognize relatives and strangers; the baby can not only sit steadily for a long time, but also has greater strength to grab things with his hands, and his fingers are more flexible. He can sit and play by himself, and is very interested in toys. He will grab things around him and play with them. He can also watch adults' actions carefully and imitate them.

If an infant does not meet some of the above-mentioned conditions (which we call the intellectual development standards) from birth to one year old, it may mean that the infant's neurological development has been hindered to a certain extent, causing intellectual retardation, which is generally called an early sign of intellectual disability. Therefore, if parents find that their children have such conditions, they should take their children to the hospital in time and receive treatment as soon as possible.