BSCI-3254 Lecture 8: Lecture 8 Owls
28 Nov 2017
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Document Summary
If you play a tone to an owl, and you were recording the neurons, these: nucleus magnocellularis, neurons are phase locked tuned to specific frequency fire with great timing regularity to a tone. On to the post-synaptic cells of nucleus magnocellularis, they come into the cell body, rather than forming, termination on the synapse, they really tightly wrap around the cell body. Totally different from what you see from nucleus angularis. There is a fast acting glutamate receptor and voltage gated potassium. The action potential is particularly short and concise and tiny. Rapid: the action potential is particularly short and precise in timing rapid onset and rapid off set. Something you would want for precise timing information. Nucleus angularis has bushy dendrites: parallel processing of different cues experiment lidocaine (sodium channel blocker; prevents action potential; reversal) injection in one or the other nuclei.
