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Neural Pathways and Information Processing in Auditory and Vestibular Systems

Explore the primary and association cortex's role in processing sound and head motion signals through neural pathways involving receptors, stimuli, and conscious perception. Discover how information is transmitted from the inner ear to the brain for auditory and vestibular functions. Unravel the complex pathway from sound reception in the cochlea to signal interpretation in the cortex, as well as the vestibular labyrinth's involvement in interpreting head motion and gravity cues.

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Neural Pathways and Information Processing in Auditory and Vestibular Systems

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  1. Information Processing Receptors(primary afferent neurons) Stimulus Primary andAssociation Cortex Neural Pathways

  2. Concious Unconcious Information Processing Conduction Transduction Receptors(primary afferent neurons) Stimulus Sensation Perception Primary andAssociation Cortex Transmission Neural Pathways

  3. Auditory System SoundExternal and Middle Ear Inner Hair CellsCochlea Primary andAssociation Cortex Auditory Pathway Spiral ganglion Cochlear nucleus  Superior olive  Inferior colliculus  Medial geniculate

  4. Vestibular System Head motion or gravity Type I Hair CellsVestibular Labyrinths Primary andAssociation Cortex Vestibular Pathway Vestibular (Scarpa’s) ganglion Vestibular nuclei  Spinal cord, cerebellum, oculomotor nuclei  Thalamus (controversial)

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