Responses of brainstem lateral line units to different stimulus source locations and vibration directions

Künzel S, Bleckmann H, Mogdans J (2011)
Journal of Comparative Physiology A 197(7): 773-787.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
We recorded responses of lateral line units in the medial octavolateralis nucleus in the brainstem of goldfish, Carassius auratus, to a 50 Hz vibrating sphere and studied how responses were affected by placing the sphere at various locations alongside the fish and by different directions of vibration. In most units (88%), stimulation with the sphere from one or more spatial locations caused an increase and/or decrease in discharge rate. In few units (10%), discharge rate was increased by stimulation from one location and decreased by stimulation from an adjacent location in space. In a minority of the units (2%), changing sphere location did not affect discharge rates but caused a change in phase coupling. Units sensitive to a distinct sphere vibration direction were not found. The data also show that the responses of most brainstem units differ from those of primary afferent nerve fibers. Whereas primary afferents represent the pressure gradient pattern generated by the sphere and thus encode location and vibration direction of a vibrating sphere, most brainstem units do not. This information may be represented in the brainstem by a population code or in higher centers of the ascending lateral line pathway.
Stichworte
nucleus; Medial octavolateralis; Source localization; Dipole; Receptive field
Erscheinungsjahr
2011
Zeitschriftentitel
Journal of Comparative Physiology A
Band
197
Ausgabe
7
Seite(n)
773-787
ISSN
0340-7594
eISSN
1432-1351
Page URI
https://pub.uni-bielefeld.de/record/2284825

Zitieren

Künzel S, Bleckmann H, Mogdans J. Responses of brainstem lateral line units to different stimulus source locations and vibration directions. Journal of Comparative Physiology A. 2011;197(7):773-787.
Künzel, S., Bleckmann, H., & Mogdans, J. (2011). Responses of brainstem lateral line units to different stimulus source locations and vibration directions. Journal of Comparative Physiology A, 197(7), 773-787. doi:10.1007/s00359-011-0642-9
Künzel, S., Bleckmann, H., and Mogdans, J. (2011). Responses of brainstem lateral line units to different stimulus source locations and vibration directions. Journal of Comparative Physiology A 197, 773-787.
Künzel, S., Bleckmann, H., & Mogdans, J., 2011. Responses of brainstem lateral line units to different stimulus source locations and vibration directions. Journal of Comparative Physiology A, 197(7), p 773-787.
S. Künzel, H. Bleckmann, and J. Mogdans, “Responses of brainstem lateral line units to different stimulus source locations and vibration directions”, Journal of Comparative Physiology A, vol. 197, 2011, pp. 773-787.
Künzel, S., Bleckmann, H., Mogdans, J.: Responses of brainstem lateral line units to different stimulus source locations and vibration directions. Journal of Comparative Physiology A. 197, 773-787 (2011).
Künzel, Silke, Bleckmann, Horst, and Mogdans, Joachim. “Responses of brainstem lateral line units to different stimulus source locations and vibration directions”. Journal of Comparative Physiology A 197.7 (2011): 773-787.

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PMID: 21479569
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