Language skills, which include seeing, hearing, speaking and writing, are highly complex neural actions unique to humans. There are functional areas in the cerebral cortex that deal with hearing, articulation, lexical cognition, language organization and inference. The neural organization of these functional areas must be closely coordinated with the physical senses, otherwise the development of language skills will be affected. The most important is the central nerve that runs through the spinal cord and the vestibular sense. Therefore, if the balance and vestibular sense are not good, the energy from the nerve tissue will not reach the cortical language function area, resulting in a lack of vocabulary, disorganized language, and incomplete development of the audiovisual nerve, resulting in difficulties in reading, dictation, and writing. In children with tactile deficits, sensory perception is incomplete and the auditory level is affected, leading to poor development of the small muscles of the articulatory tissues, resulting in poor phonological awareness and incorrect pronunciation. In addition to damage to the speech organs themselves, most of the reasons for delayed language development are due to a lack of sensory integration.