Central diplacusis.
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.
Ghosh
P
P
Department of Otorhinolaryngology, All India Institute of Medical Sciences, New Delhi.
D001308:Auditory Perceptual Disorders / Q000209:etiology*; D004584:Electronystagmography; D006311:Hearing Disorders / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010468:Perceptual Disorders / Q000209:etiology*; D013786:Thalamic Diseases / Q000150:complications* / Q000503:physiopathology; D013788:Thalamus / Q000503:physiopathology