Point 12
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As far as neurological deficits involving lesions of the auditory nuclei and pathways, you should know that a lesion of the auditory portion of the C.N. VIII (nerve) results in deafness in the IPSILATERAL ear. Also, a lesion involving the dorsal and ventral cochlear nuclei results in deafness in the ipsilateral ear. Only "subtle deficits" result from unilateral lesions of such structures as the lateral lemniscus, superior olive, inferior colliculus, medial geniculate body and auditory cortex (areas 41 and 42). SO I WILL USE THE TERM "SUBTLE AUDITORY DEFICITS" WHEN PROBLEM SOLVING WITH LESIONS INVOLVING AUDITORY STRUCTURES OTHER THAN THE AUDITORY NERVE AND DORSAL AND VENTRAL COCHLEAR NUCLEI. |