Orientation auditory

Psychogenic hallucinations - mainly visionary, less so auditory euphoria, lack of orientation for time and space. 

The MGB and AC form the auditory thalamocortical system. As with other sensory systems, extensive projections to and from the cortical region exist in this system. The MGB has three divisions, the ventral, dorsal, and medial. The ventral division is the largest and has the most precise tonotopic organization. Almost aU its input is from the ipsilateral ICC through the brachium of the 1C. Its large bushy cells have dendrites oriented so as to He in isofrequency layers, and the axons of these neurons project to the AC. 

As well as in case of the middle ear, MPR can be used to study the components of the inner ear. These allow one to follow the different planes through which the cochlea, semicircular canals, vestibule, first portion of the facial nerve, internal auditory canal and vestibular duct are oriented. Even if the... 

Vestibular Pertaining to the vestibular apparatus—the part of inner ear and vestibulocochlear (auditory) nerve that contributes to balance and spatial orientation. 

Ritter W, Vaughan H. G et al (1968) Orienting and habituation to auditory stimuli a study of short term changes in average evoked responses. Electroencephalogr Clin Neurophysiol 25(6) 550-556... 

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