Interaction Between Somatosensory and Auditory Systems
- Aage R. MøllerAffiliated withSchool of Behavioral and Brain Sciences, The University of Texas at Dallas Email author
- , Susan Shore
Studies in animals (guinea pigs) have shown projections from the dorsal column nuclei and the caudal trigeminal nucleus to cells in the cochlear nucleus (CN).
Recordings from single cells in the DCN and evoked potentials indicate that the pathways from the trigeminal nucleus are functional.
Electrical stimulation of the dorsal column and the cervical dorsal root ganglia elicits short and long latency inhibition separated by a transient excitatory peak in DCN single units.
Electrical stimulation of the trigeminal nucleus elicits excitation in some DCN units and inhibition in others.
Dorsal cochlear nucleus neurons show greater sensitivity to somatosensory stimulation, and the interaction between somatic stimulation and sound stimulation is greater after exposure to loud sounds that cause hearing loss and probably tinnitus. These findings may be explained by increased innervation of the cochlear nucleus by somatosensory fibers after noise exposure.
KeywordsTinnitus Cross-modal interaction Cochlear nucleus Trigeminal system Dorsal column system
- Interaction Between Somatosensory and Auditory Systems
- Book Title
- Textbook of Tinnitus
- Book Part
- Part I
- pp 69-76
- Print ISBN
- Online ISBN
- Springer New York
- Copyright Holder
- Springer Science+Business Media, LLC
- Additional Links
- Cross-modal interaction
- Cochlear nucleus
- Trigeminal system
- Dorsal column system
- Industry Sectors
- eBook Packages
- Editor Affiliations
- 1. School of Behavioral and Brain Sciences, The University of Texas at Dallas
- 2. Department of Psychiatry Psychotherapy and Psychosomatics, University of Regensburg
- 3. BRAI2N/TRI Tinnitus Clinic and Department of Neurosurgery, University Hospital Antwerp
- 4. Department of Otorhinolaryngology, University of Regensburg
- Author Affiliations
- 1. School of Behavioral and Brain Sciences, The University of Texas at Dallas, GR 41, 800 W Campbell Rd, Richardson, TX, 75080, USA
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