Ghosh P
Department of Otorhinolaryngology, All India Institute of Medical Sciences, New Delhi.
Eur Arch Otorhinolaryngol. 1990;247(1):48-50. doi: 10.1007/BF00240950.
Although diplacusis is usually indicative of cochlear pathology, to our knowledge causes in the central nervous system ("central diplacusis") have not been mentioned in the available literature. A case of central diplacusis involving a lesion in the posterior thalamus is now reported that resulted in diplacusis binauralis. A neuro-audiological explanation is offered to explain this phenomenon. Presumably, a lesion at the geniculate-collicular level, where pain and tactile impulses are interrelated with auditory, visual and olfactory ones, leads to the phenomenon perceived.
虽然双耳听觉不同通常提示耳蜗病变，但据我们所知，现有文献中尚未提及中枢神经系统原因导致的双耳听觉不同（“中枢性双耳听觉不同”）。现将1例涉及丘脑后部病变导致双耳听觉不同的中枢性双耳听觉不同病例报告如下，并提供了神经听力学解释。据推测，在膝状体-丘系水平，疼痛和触觉冲动与听觉、视觉和嗅觉冲动相互关联，此处的病变导致了所观察到的现象。
