- Fibers ascend through the lateral lemniscus to the inferior colliculus to the medial geniculate nucleus of the thalamus to the auditory cortex.
- Fibers may be crossed or uncrossed. As a result, a mixture of ascending auditory fibers represents both ears at all higher levels. Therefore, lesions of the cochlea of one ear cause unilateral deafness, but more central unilateral lesions do not.
- There is tonotopic representation of frequencies at all levels of the central auditory pathway.
-Discrimination of complex features (e.g., recognizing a patterned sequence) is a property of the cerebral cortex.
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