Summary
The electrical responses of motor neurons in different anatomical subdivisions of the crayfish oculomotor system were examined during various kinds of experimentally manipulated sensory stimulation. Geotactic reflexes are effected by neurons in the anterior motor cluster and the medulla terminalis. Optokinetic and proprioceptive nystagmus are generated by neurons in the lateral motor cluster. This functional diversity in the major subdivisions contrasts with an intradivisional homogeneity of function, in that the different motor neurons of each all contribute to reflexes initiated by different kinds of sensory input.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Bush, B.M.H., Roberts, A.: Resistance reflexes from a crab muscle receptor without impulses. Nature218, 1171–1173 (1968)
Cohen, M.J.: The function of the receptors in the statocyst of the lobster,Homarus americanus. J. Physiol. (London)130, 9–34 (1955)
Dijkgraaf, S.: Kompensatorische Augenstieldrehungen und ihre Auslösung bei der Languste (Palinurus vulgaris). Z. vergl. Physiol.38, 491–520 (1956)
Fay, R.R.: Multisensory interactions in control of eye-stalk rotation response in the crayfish (Procambarus clarkii). J. comp. physiol. Psych.84, 527–533 (1973)
Hisada, M., Higuchi, T.: Basic response pattern and classification of oculomotor nerve in the crayfish,Procambarus clarkii. J. Fac. Sci. Hokkaido Univ. Ser. VI Zool.18(4), 481 (1973)
Horridge, G.A.: Study of a system, as illustrated by the optokinetic response. Symp. Soc. exp. Biol.20, 179–198 (1966)
Horridge, G.A., Sandeman, D.C.: Nervous control of optokinetic responses in the crab,Carcinus. Proc. roy. Soc. B161, 216–246 (1964)
Mellon, DeF.: Electrical responses from dually innervated tractile receptors on the thorax of the crayfish. J. exp. Biol.40, 137–148 (1963)
Mellon, DeF.: The anatomy and motor nerve distribution of the eye muscles in the crayfish. J. comp. Physiol.121, 349–366 (1977)
Moody, C.: Some aspects of the reflex organization of a crustacean walking limb. Dissertation. University of Miami (1972)
Olivo, R., Hiraga, Y., Koumjian, K.: Color discrimination capability in the crayfish optokinetic system. Neurosci. Abst.1, 579 (1975)
Sandeman, D.C.: Functional distinction between oculomotor and optic nerves inCarcinus (Crustacea). Nature201, 302–303 (1964)
Sandeman, D.C., Okajima, A.: Statocyst-induced eye movements in the crab,Scylla serrata. I. The sensory input from the statocyst. J. exp. Biol.57, 187–204 (1972)
Schöne, H.: Complex behavior. In: The physiology of Crustacea (ed. T. Waterman), pp. 465–520. New York and London: Academic Press 1961
Schöne, H., Neil, D.M., Stein, A., Carlstead, M.K.: Reactions of the spiny lobster,Palinurus vulgaris, to substrate tilt (I.). J. comp. Physiol.107, 113–128 (1976)
Schöne, H., Steinbrecht, R.A.: Fine structure of statocyst receptor ofAstacus fluviatitis. Nature220, 184–186 (1968)
Stein, A., Schöne, H.: Über das Zusammenspiel von Schwereorientierung und Orientierung zur Unterlage beim Flusskrebs. Verh. Dtsch. Zool. Ges.65, 225–229 (1972)
Whitear, M.: The fine structure of crustacean proprioceptors. II. The thoracico-coxal organs inCarcinus, Pagurus andAstacus. Phil. Trans, roy. Soc. B248, 437–456 (1965)
Wiersma, C.A.G., Hirsh, R.: Contrast induced zones as the basis of optomotor memory in the crab,Pachygrapsus, J. comp. Physiol.102, 173–188 (1975)
Wiersma, C.A.G., Oberjat, T.: The selective responsiveness of various crayfish oculomotor fibers to sensory stimuli. Comp. Biochem. Physiol.26, 1–6 (1968)
Author information
Authors and Affiliations
Additional information
This research was supported by USPHS Research Grant NS 04989.
Rights and permissions
About this article
Cite this article
Mellon, D., Lorton, E.D. Reflex actions of the functional divisions in the crayfish oculomotor system. J. Comp. Physiol. 121, 367–380 (1977). https://doi.org/10.1007/BF00613015
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00613015