the reticular formation, the non-primary pathway leads to the
thalamus, then to the polysensory cortex.
NB : connections are also made with the hypothalamus and the vegetative
centres (not shown on the diagram)
the reticular pathway of the brainstem and the mesencephalus,
several synapses occur. It's here that the auditory information
is integrated with all the other sensory modalities to be 'triaged'
into which has the highest priority at any given moment. In other
words, the reticular pathways participate with the wake and the
motivation centres in selectioning the information that should be
treated as priority by the brain.
primary relay, in common with the primary auditory pathway formed
in the cochlear nuclei (brainstem). From the bulbar nuclei, the
small fibers rejoin the ascending reticular pathway.