生理学研究证明,在听觉传导路各级中枢内有明确的音调定位。在形态学方面,关于局部定位投射的资料不多。从耳蜗核向上基本空白,仅鞠躬等曾发现大白鼠的外侧上橄榄核及内侧斜方体核内有局部定位投射的迹象。从螺旋神经节到耳蜗核有一些局部定位投射的形态学研究报告。Poljnk曾研究了蝙蝠的正常结构,认为来自螺旋神经节尖部的纤维到达耳蜗腹侧核的腹侧部,来自底部者到达其背侧部。但Lorente de No却得到了完全相反的 Physiological studies have shown that there is a clear pitch in the central nervous system at all levels of the auditory pathway. In terms of morphology, there is not much information about the projection of local positioning. From the cochlear nucleus to the basic blank, bow, etc. have only found on the outside of the rat on the outer olive nucleus and the medial mitochondria within the local projection of the projection. From the spiral ganglion to the cochlear nucleus there are some morphological studies that report localized projections. Poljnk studied the normal structure of the bat, thinking that the fibers from the tips of the spiral ganglion reach the ventral part of the ventral nucleus of the cochlea, from the bottom to the dorsal part. But Lorente de No got the exact opposite