What is Asymmetric Body Balancing?

Asymmetric tonic neck reflex (AsymmetricTonicneckreflex) is a physiological response that occurs in babies from 0 to 5 months, so as to determine whether the baby's brain may have abnormal development or development.

Asymmetric tonic neck reflex

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Asymmetric tonic neck reflex (AsymmetricTonicneckreflex) is a physiological response that occurs in babies from 0 to 5 months, so as to determine whether the baby's brain may be abnormal or development.

Western Medicine Name

Asymmetric tonic neck reflex

English name

AsymmetricTonicneckreflex

Appear time

0 5 months

Features

Baby's hand will shrink

Disappear time

Disappears in about 5 to 6 months

0 5 months

Lie the baby on his back and turn it slightly by a professional doctor to change the position of his head and neck. The baby's hand will be retracted, and the opposite hand will be stretched and straightened, showing a bow or fencing shape.

Reasons such as the control of the semicircular canal and the flow of the lymph will induce changes in posture, which is a test of the integrity of the conduction path. This reflex does not necessarily appear, but if the baby reaches 5 to 6 months, the reflex still persists, which is obviously problematic. If it persists, it may be because of an abnormality in the baby's brain or development. Condition, and babies

It will disappear in about 5 to 6 months.

The nervous system is like a balance in a balanced state. Positive stimulus will have neural control of positive stimulus, and negative stimulus will also have negative stimulus to suppress neural control. Fully developed, so most of them are positive stimulation. In the future, after cognitive learning, the inhibitory nerve source will gradually develop and the body will reach a balanced state. But instead of positively stimulating the disappearance of the neuron, it is inhibiting the development of the neuron system to become complete, and the original reflex will slowly disappear.

But if it s hypoxic or neurologically abnormal

Babies have a series of relatively primitive reflections, and these reflections indicate that some of the evolution of the human germline has occurred, that is, humans have evolved from simpler life forms. These primitive reflexes found in infants reflect that the infant's nervous system is under subcortical control, as the maturation of the cerebral cortex can inhibit these reflex phenomena. Among them, some reflexes disappear within the first year of life, and those that are clearly protective of human tissues, such as pupil reflexes (pupils contract when eyes encounter intense light), blinking, yawning, coughing, snoring And sneezing, but not disappear. By observing infants 'reflex behavior, we can judge the maturity of infants' cortical function and determine whether their neurodevelopment is normal. Therefore, the relationship between childhood reflexive behavior and normal development is a promising area of research.

Asymmetric tonic neck reflexes are:

1. Foraging reflection. Touch your baby's cheek with your finger or nipple, and he will turn his head and open his mouth to start sucking. This important reflection enables the baby to find and eat food. This reflection can be observed in awake babies only half an hour after birth. However, dormant babies did not have foraging reflexes.

Darwin Reflection. Also known as grip reflex. When the baby's palm is touched, he clenches his fist. If the baby's two small fists clenched a stick, the parents can hold the stick to make the baby stand up. This may be an inheritance of primate germline. When primates are born, they cling to their mother's hairy body. This reflection is present in children as young as 9 weeks, and will disappear by the age of 1 year. This reflex is often used to measure the maturity of the nerve.

3. Morrow reflection. Also known as startle reflex. Morrow reflexes are a full-body movement that is best seen when a baby is lying on its back. Sudden stimuli, such as the sudden appearance of gunfire or other louder sounds. Or putting a baby in a crib, etc., will lead to a startle reflex. When a startle reflex occurs, the baby's arms are straight, its fingers are spread, its back is stretched or bent, its head is tilted back, and its legs are straight. This reflection may also be a germline phenomenon, which shows the ability of young animals to reach out and grab females. This reflection disappears within 3 to 5 months.

4. Swimming reflection. When the baby is less than 6 months old, placing him prone in the water will show a well coordinated involuntary swimming movement. After 6 months, if he is left in the water like this, he will struggle. After 8 months, the baby will not be able to swim at will.

5. Ankylosing neck reflex. When the baby is lying on his back, his head will turn to one side, pose the fencer, stretch out the arms and legs he likes, and bend the arms and legs on the other side. The side he likes seems to signal his habit of using the hand in the future. This reflection was first detected in the fetus at 28 weeks and disappeared around 3 months after birth. If it persists, it is a brain lesion. This reflection can prevent newborns from rolling from supine to prone or from prone to supine within a few weeks after birth. This tonic neck reflection is called asymmetric tonic neck reflection. There is also a symmetrical tonic neck reflex, which manifests itself as follows: when a baby with a lowered head is straightened and lifted, the arms are stretched and the legs are bent, and when the head is bent down, the movement is reversed. This reflection usually disappears when infants practice crawling. If it persists, it is a brain disorder and the baby cannot crawl.

6, Babinski reflection. This reflection phenomenon was first discovered by French neuroscientist Babinski, hence its name. When using the pure end of a match stick or a pin to gently stroke the lateral edge of the newborn's foot forward from the heel, his thumbs will slowly stick up, and the remaining toes are fan-shaped. This reflection can be seen as early as 4 to 6 months of age in newborns. It is caused by the immature central nervous pathways (pyramids and cerebral cortex). The reflection gradually disappears in about 6 to 18 months, but can still appear in sleep or coma. After 2 years of age, the same foot reflex as that of an adult appears, and if this reappears, it is generally a manifestation of damage to the cone bundle.

7, the next reflection. Also known as step reflection or unconscious walking. When a normal newborn is awake, hold his armpit with both hands to make it stand upright and tilt his upper body slightly forward. When the foot touches the bed, he will stretch out his feet alternately and make the action of leaning forward. Going up is like walking with coordinated movements. Premature babies also have this reflection, but they tend to bed on their toes, which is different from the full-length or heeled walking of full-term babies. This reflex appears shortly after birth and disappears at 6-10 weeks. If this reflex persists after 4 months, there may be a brain disorder.

8, cower reflection. When a newborn's instep touches the edge of the table, it lifts its legs to the table and makes a kitten-like curling movement. Newborns weighing more than 1,800 grams at birth have this reflex. In normal newborns, this reflex disappears 6 to 8 weeks after birth.

9, Ba surface gold reflection. When a baby's palm is pressed, he turns his head and opens his mouth. As soon as the pressure on his hands is relaxed, he may yawn.

10. Vision-neck reflex. When a light flashed in front of the baby's eyes, he twisted his neck and appeared to try to avoid the light.