Summary
How does a gymnotoid electric fish with pulse-type electric organ discharges (EODs) detect specific novelties in electroreceptive feedback from its own EODs if it is contaminated by EODs of a neighbor? To answer this question, experiments were performed on intact as well as on curarized animals. Specimens were curarized and their silenced EODs replaced by artificial pulses, S1, in order to dissociate electroreceptive afferences 1 from the activity of the electric organ pacemaker. The animal's ability to detect small, local distortions in its own EOD field as well as in a substituted S1-field was tested while various patterns of pulses, S2, mimicking EODs of a neighbor, were presented (Fig. 1). The following results were obtained:
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1.
The animal evaluates electroreceptive afferences without reference to the pacemaker which normally drives its EODs, the main source of electroreceptive afferences.
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2.
Signals interfering with the animal's EOD, or S1, will impair the detection of specific novelties to the extent that they cause transient alterations in electroreceptive afferences over the course of several successive EODs. Foreign pulses which coincide with or narrowly precede several successive EODs are more detrimental than noncoincident pulses (Figs. 2–5, 9).
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3.
The animal adapts to maintained alterations of its electroreceptive afferences in the course of seconds and thereby regains its ability to detect novelties in a maintained jamming regime which allows electroreceptive afferences to stabilize to a new state (Fig. 4).
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4.
Detection of novelties in curarized fish improves to the extent that the EOD substitute, S1, is presented at a high and regular rate (Figs. 6. 7). High and regular EOD rates, which are commonly observed in novel situations, should therefore enhance the animal's ability to detect the appearance of objects in its environment.
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5.
The Jamming Avoidance Response (JAR) prevents successive EODs from coinciding with foreign pulses of a similar repetition rate. Such coincidences disturb electroreceptive afferences most severely. By avoiding coincidences, the JAR stabilizes these afferences and thereby enhances the detection of specific novelties in the presence of conspecifics (Fig. 10).
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Abbreviations
- BDC :
-
burst detection coders
- EOD :
-
electric organ discharge
- JAR :
-
jamming avoidance response
References
Baker, C.L. Jr.: Jamming avoidance behavior in gymnotoid electric fish with pulse-type discharges. Sensory encoding for a temporal pattern discrimination. J. Comp. Physiol.136, 165–181 (1980)
Bastian, J.: Frequency response characteristics of electroreceptors in weakly electric fish (Gymnotoidei) with a pulse discharge. J. Comp. Physiol.112, 165–180 (1976)
Behrend, K.: Processing information carried in a high frequency wave; properties of cerebellar units in a high frequency electric fish. J. Comp. Physiol.118, 357–371 (1977)
Bennett, M.V.L., Steinbach, A.B.: Influence of electric organ control system on electrosensory afferent pathways in Mormyrids. In: Neurobiology of cerebellar evolution and development. Llinas, R. (ed.), pp. 207–214 Chicago: Am. Med. Assoc. 1969
Bullock, T.H.: Representation of information in neurons and sites for molecular participation. Proc. Natl. Acad. Sci USA60, 1058–1068 (1968)
Bullock, T.H., Hamstra, R.H., Scheich, H.: The jamming avoidance response of high frequency electric fish. I, II. J. Comp. Physiol.77, 1–48 (1972)
Hagiwara, S., Morita, H.: Coding mechanisms of electroreceptor fibers in some electric fish. J. Neurophysiol.26, 551–567 (1963)
Hagiwara, S., Kusano, K., Negishi, D.: Physiological properties of electroreceptors of some gymnotids. J. Neurophysiol.25, 430–449 (1962)
Harder, W.: Nachweis aktiver elektrischer Ortung by Mormyriden. Z. Tierpsychol.30, 94–102 (1972)
Heiligenberg, W.: Electrolocation and jamming avoidance in aHypopygus (Rhamphichthyidae, Gymnotoidei), an electric fish with pulse-type discharges. J. Comp. Physiol.91, 223–240 (1974)
Heiligenberg, W.: Electrolocation and jamming avoidance in the mormyrid frishBrienomyrus. J. Comp. Physiol.109, 357–372 (1976)
Heiligenberg, W.: Principles of electrolocation and jamming avoidance in electric fish. Studies of brain function, Vol. 1, pp. 1–85. Berlin, Heidelberg, New York: Springer 1977
Heiligenberg, W., Baker, C., Bastian, J.: The jamming avoidance response in gymnotoid pulse-species: A mechanism to minimize the probability of pulse-train coincidence. J. Comp. Physiol.124, 211–224 (1978a)
Heiligenberg, W., Baker, C., Matsubara, J.: The jamming avoidance response inEigenmannia revisited: The structure of a neuronal democracy. J. Comp. Physiol.127, 267–286 (1978b)
Langner, G., Scheich, H.: Active phase coupling in electric fish: Behavioral control with microsecond precision. J. Comp. Physiol.128, 235–240 (1978)
Larimer, J.L., Mac Donald, J.A.: Sensory feedback from electroreceptors to electromotor pacemaker centers in gymnotids. Am. J. Physiol.214, 1253–1261 (1968)
Lissmann, H.W., Machin, K.E.: The mechanism of object location inGymnarchus niloticus and similar fish. J. Exp. Biol.35, 451–486 (1958)
Matsubara, J., Heiligenberg, W.: How well do electric fish electrolocate under jamming? J. Comp. Physiol.125, 285–290 (1978)
Russell, C.J., Bell, C.C.: Neuronal response to electrosensory input in mormyrid valvula cerebelli. J. Neurophysiol.41, 1495–1510 (1978)
Scheich, H.: Neural basis of communication in the high frequency electric fish,Eigenmannia virescens (Jamming Avoidance Response). I, II, III. J. Comp. Physiol.113, 181–255 (1977)
Scheich, H.. Gottschalk, B., Nickel, B.: The Jamming Avoidance Response inRhamphichthys rostratus: An alternative principle of time domain analysis in electric fish. Exp. Brain Res.28, 229–233 (1977)
Schlegel, P.: Elektroortung bei schwach elektrischen Fischen: Ver zerrungen des elektrischen Feldes vonGymnotus carapo undGnathonemus petersii durch Gegenstände und ihre Wirkungen auf afferente Aktivitäten. Biol. Cybern.20, 197–212 (1975)
Sokolov, E.N.: Neuronal models and the orienting reflex. In: The central nervous system and behavior (III). Brazier, M. (ed.), pp. 187–276. New York: Macy Foundation 1960
Suga, N.: Coding in tuberous and ampullary organs of a gymnotoid electric fish. J. Comp. Neurol.131, 437–452 (1967)
Szabo, T.: Anatomy of the specialized lateral line organs of elec troreception. In: Handbook of sensory physiology, Vol. III/3. Fessard, A. (ed.), pp. 13–58. Berlin, Heidelberg, New York: Springer 1974
Szabo, T., Fessard, A.: Physiology of electroreceptors. In: Handbook of sensory physiology, Vol. III/3. Fessard, A. (ed.), pp. 59–124. Berlin. Heidelberg, New York: Springer 1974
Westby, G.W.M.: Has the latency-dependent response ofGymnotus carapo to discharge-triggered stimuli a bearing on electric fish communication? J. Comp. Physiol.96, 307–341 (1975)
Westby, G.W.M.: Electrical communication and jamming avoidance between restingGymnotus carapo. Behav. Ecol. Sociobiol.4, 381–394 (1979)
Zipser, B., Bennett, M.V.L.: Responses of cells of the posterior lateral line lobe to activation of electroreceptors in a mormyrid fish. J. Neurophysiol.39, 693–712 (1976a)
Zipser, B., Bennett, M.V.L.: Interaction of electrosensory and electromotor signals in the lateral line lobe of a mormyrid fish. J. Neurophysiol.39, 713–721 (1976b)
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I thank J. Bastian, C. Baker and B. Partridge for their critical comments on this manuscript. This research was supported by NSF grant BNS76-20761 and NIMH grant PHSMH-2614904.
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Heiligenberg, W. The evaluation of electroreceptive feedback in a gymnotoid fish with pulse-type electric organ discharges. J. Comp. Physiol. 138, 173–185 (1980). https://doi.org/10.1007/BF00680441
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DOI: https://doi.org/10.1007/BF00680441