When does the grip reflex disappear?

summary

Gripping reflex is also called gripping reflex. When the finger or penholder touches the palm of the child's hand, the child immediately holds it tightly. The grasping force is large enough to bear the weight of the baby. If the baby is lifted in the air, it can stay for a few seconds. It is an unconditioned reflex that is born in newborns. This reflex increases in the first month, then gradually weakens, and disappears at 3-4 months, and is replaced by random grasping. When does the grip reflex disappear? I'd like to share my views with you.

When does the grip reflex disappear?

First of all: after birth, the newborn has the ability to make appropriate response to some stimuli in the environment, that is, unconditional reflex. The reflexive behavior that is necessary for the body to adapt to the environment and protect itself is called survival reflex. However, unconditioned reflexes such as grip reflex, walking reflex, swimming reflex, surround reflex and BABINSKY reflex have no biological significance for newborns, and will disappear spontaneously within 4-6 months after birth.

Second, the grip reflex is a kind of neonatal unconditional reflex. When touching the palm of the newborn's hand, he is immediately held tightly. If the newborn's two little hands hold a stick tightly, he can even make the whole body hang for a moment. It reached the highest level in the fifth week after birth, disappeared in 3-4 months, and replaced by autonomous grasp. More than four months later, it could be neuropathy. Infants often clench their fists in the first month, but if they continue to clench for more than two months, it may be the central nervous system injury.

Finally: there are two types of neonatal motor reflex, some of which are inhibited due to the maturation of cerebral cortex and disappear within a certain period of time; Some of them have obvious protective effect on human body and will not disappear. When touching the palm of a newborn two or three days old, he clenches his fist, and the reflex disappears after four months. This is a normal phenomenon and an instinctive reaction.

matters needing attention

Baby born 1-2 months when it has a grip reflex function. When touching the baby's little hand with the toy that the baby can hold, he will hold it more tightly. If he puts the toy in his hand, the baby will hold it firmly. At this time, if the mother pulls the toy hard, it will be pulled up together with the baby's body. The conditioned reflex will disappear after 1-2 months with the normal development of the nervous system. During this time, parents can do some grip training for their baby.