NDLI: Roles for inhibition: studies on networks controlling swimming in young frog tadpoles

Content Provider	Springer Nature Link
Author	Roberts, Alan Li, Wen Chang Soffe, S. R.
Copyright Year	2007
Abstract	The hatchling frog tadpole provides a simple preparation where the fundamental roles for inhibition in the central nervous networks controlling behaviour can be examined. Antibody staining reveals the distribution of at least ten different populations of glycinergic and GABAergic neurons in the CNS. Single neuron recording and marker injections have been used to study the roles and anatomy of three types of inhibitory neuron in the swimming behaviour of the tadpole. Spinal commissural interneurons control alternation of the two sides by producing glycinergic reciprocal inhibition. By interacting with the special membrane properties of excitatory interneurons they also contribute to rhythm generation through post-inhibitory rebound. Spinal ascending interneurons produce recurrent glycinergic inhibition of sensory pathways that gates reflex responses during swimming. In addition their inhibition also limits firing in CPG neurons during swimming. Midhindbrain reticulospinal neurons are excited by pressure to the head and produce powerful GABAergic inhibition that stops swimming when the tadpole swims into solid objects. They may also produce tonic inhibition while the tadpole is at rest that reduces spontaneous swimming and responsiveness of the tadpole, keeping it still so it is not noticed by predators.
Starting Page	185
Ending Page	193
Page Count	9
File Format	PDF
ISSN	03407594
Journal	Journal of Comparative Physiology A
Volume Number	194
Issue Number	2
e-ISSN	14321351
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-01-29
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Xenopus GABA Glycine Reticulospinal Spinal cord Zoology Neurosciences Animal Physiology
Content Type	Text
Resource Type	Article
Subject	Physiology Behavioral Neuroscience Animal Science and Zoology Ecology, Evolution, Behavior and Systematics

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