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声音由耳输入,在螺旋器换能,由神经纤维传递冲动,经脑干、丘脑,终止于大脑听中枢;此外,听束有许多侧支纤维直接进入脑干网状结构的激活调节系统,再向上广泛地传导到更高的皮层中枢。强噪声不仅在耳蜗造成暂时性或永久性损伤,且可经上述径路累及中枢神经系统,产生循环、消化等系统的植物神经功能失调以及内分泌系统的某些生理紊乱,还可在心理上造成不良影响。
Voice input from the ear, in the spiral converter, the impulse transmitted by the nerve fibers, via the brainstem, thalamus, terminating in the brain listening center; In addition, the beam has many collateral fibers directly into the activation of the brainstem reticular structure of the regulatory system, Re-conduction up to the higher cortical center. Strong noise not only causes temporary or permanent damage to the cochlea, but also impairs the central nervous system by the above path, causing autonomic dysfunction of the circulatory and digestive system, and some physiological disorders of the endocrine system, and can also cause psychological distress influences.