People's ears are closely related to the nervous system. Vestibule is an integral part of the inner ear, which can transmit neurons, promote the secretion of endorphin by pituitary gland, and control the neural conditioning response and balance of nervous system; externally, it is controlled by the change of head position to maintain body balance, coordination and muscle tension. It is because of the coordination of vestibule and nervous system that we can express our body in space, make various actions, speak the language we want to express, and maintain positive emotions. Ear vestibule is also an important relay station for the body to convey all sensory information to the limbs. The imbalance of ear vestibule will affect the function of human nervous system and other organs.
Scientific experiments show that: if the ear vestibular hearing imbalance occurs, it will stimulate the brain central system and affect the normal work of pituitary gland. Make the brain produce anxiety; under the influence of this kind of anxiety, children will show a slow or excessive response to the external environment, numbness or fear of communication, like to indulge in their own world, resulting in autism.
In addition, this kind of anxiety can also make children use non-stop activities to relieve anxiety. They can't sit still, act too much, often fiddle with all kinds of things, walk with running instead of walking, it's difficult to concentrate, they don't pay attention in class, they have difficulty in learning, they are impulsive and willful, and they are emotionally unstable, that is, they suffer from ADHD.
Other hypotheses:
There are many hypotheses about the causes of autism
1. Self handicapping hypothesis
2. Gene theory
Among the 20% of autistic patients, his family can find those with intelligence deficiency, language retardation and autism like symptoms. In addition, about 10% of autistic boys have X-chromosome vulnerability.
3. Theory of high brain androgen
4. Undernutrition theory
5. Theory of digestive insufficiency
6. Folic acid theory
7. Vaccine theory
8. The theory of brain trauma
Factors such as brain hypoplasia caused by distress abortion during pregnancy, premature delivery, dystocia, neonatal brain injury during childbirth, and brain injury caused by infectious encephalitis, meningitis and other diseases during infancy may increase the chance of autism.
9. Theory of bacterial or viral invasion
During pregnancy, a woman may be infected with viruses such as rubella or influenza, which may damage the brain development of the fetus and lead to autism.
10. Immune system failure theory
11. Blood group theory
12. Neuron theory
13. The hypothesis of mental disorder
14. Natural variation hypothesis
15. Such as phenylketonuria and other congenital metabolic disorders, resulting in dysfunction and disorders of brain cells, will affect the function of brain nerve signal transmission, resulting in autism.