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Does the magnocellular octaval nucleus process auditory information in the toadfish, Opsanus tau?
- Source :
- Journal of Comparative Physiology A. 199:353-363
- Publication Year :
- 2013
- Publisher :
- Springer Science and Business Media LLC, 2013.
-
Abstract
- Previous work on auditory processing in Opsanus tau has focused on the descending octaval nucleus; however, the magnocellular octaval nucleus receives similar inputs from the otolithic endorgans. The purpose of this study was to assess whether cells in any of the three subdivisions of the magnocellular nucleus respond to auditory frequencies and encode sound source direction. Extracellular recording sites were chosen based on anatomical landmarks, and neurobiotin injections confirmed the location of auditory sites in subdivisions of the magnocellular nucleus. In general, the auditory cells in M2 and M3 responded best to frequencies at or below 100 Hz. Most auditory cells responded well to directional stimuli presented along axes in the horizontal plane. Cells in M3 (not M2) also responded to lateral line stimulation, consistent with otolithic endorgan and lateral line inputs to M3. The convergence of auditory and lateral line inputs in M3, the lack of Mauthner cells in this species, and previous evidence that the magnocellular nucleus does not contribute to ascending auditory pathways suggest to us that the large cells of M3 may play a role in rapid behavioral responses to particle motion stimuli in oyster toadfish.
- Subjects :
- Male
Sound localization
Auditory perception
Oyster toadfish
Auditory Pathways
Physiology
Biotin
Biology
Injections
Behavioral Neuroscience
Mauthner cell
medicine
Animals
Sound Localization
Neuronal Tract-Tracers
Ecology, Evolution, Behavior and Systematics
Toadfish
Brain
Anatomy
Batrachoidiformes
biology.organism_classification
Neuroanatomical Tract-Tracing Techniques
medicine.anatomical_structure
Acoustic Stimulation
Auditory Perception
Magnocellular cell
Female
Animal Science and Zoology
sense organs
Saccule
Nucleus
Subjects
Details
- ISSN :
- 14321351 and 03407594
- Volume :
- 199
- Database :
- OpenAIRE
- Journal :
- Journal of Comparative Physiology A
- Accession number :
- edsair.doi.dedup.....a629b9aec4fd832c20f1f22e14cd5b08