Strategies for the Study of the Coelenterate Brain
Some years ago it was fashionable to hope that the nervous system of some coelenterate would be simple enough so that it could be ‘described completely’, either functionally, morphologically or, ideally, both. But now, for at least three reasons, this approach has palled. In the first place, the nervous system seems more complex, with the passing of the simplistic view that the functional units are always neurons, linked together by standardized junctions. At least in other, ‘higher’ forms, there are many different kinds of synapses, even within single neurons; single neurons can subserve more than one function in an organism, even at the same time. Secondly, non-nervous components in coelenterate coordinating systems are now known to be basic elements in behavioral control (Mackie, 1970). Finally, behavioral studies always reveal greater complexity than was previously imagined.
KeywordsBehavioral Control Single Neuron Conduction Pathway Wiring Diagram Pacemaker System
Unable to display preview. Download preview PDF.
- Kuffler, S., E.V. Evarts, E.R. Kandel, I.J. Kopin, V.B. Mountcastle, W.J.H. Nauta, S.L. Palay, and W.A. Spencer, 1970. The nervous system. Pages 324–378 in P. Handler, Ed., Biology and the future of man. Oxford Univ. Press, New York.Google Scholar
- Passano, L.M., 1965. Pacemakers and activity patterns in medusae: homage to Romanes. Am. Zoologist, 5: 465–481.Google Scholar
- Passano, L.M., 1973. Behavioral control systems in medusae: a comparison between hydro-and scyphomedusae. Publ. Seto Marine Biol. Lab., 20: 615–645.Google Scholar
- Wiersma, C.A.G., 1974. Behavior of neurons. Pages 419–431 in F.O. Schmitt, and F.G. Worden, Eds., The neurosciences third study program. MIT Press, Cambridge.Google Scholar