Journal of Comparative Physiology A

, Volume 156, Issue 2, pp 181–183 | Cite as

Sensory responses of dorsal cells in the lamprey brain

  • Carl M. Rovainen
  • Qiao Yan


Sensory responses were evoked in 17/33 dorsal cells in the brain of the lampreyIchthyomyzon unicuspis by mechanical stimulation of the dorsolateral skin of the sucker and head. Fifteen of the responsive cells tested were classified as pressuresensitive and two as nociceptive. Thus, some of the dorsal cells which are situated in the medulla of the lamprey and which project into the branches of the trigeminal nerves have sensory functions similar to those of dorsal cells in the spinal cord.


Spinal Cord Mechanical Stimulation Trigeminal Nerve Sensory Response Sensory Function 
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Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • Carl M. Rovainen
    • 1
  • Qiao Yan
    • 1
  1. 1.Department of Physiology and BiophysicsWashington University School of MedicineMissouriUSA

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