Abstract
The known nonlinearities of the femur-tibia control loop of the stick insect Carausius morosus (enabling the system to produce catalepsy) are already present in the nonspiking interneuron E4: (1) The decay of depolarizations in interneuron E4 following slow elongation movements of the femoral chordotonal organ apodeme could be described by a single exponential function, whereas the decay following faster movements had to be characterized by a double exponential function. (2) Each of the two corresponding time constants was independent of stimulus velocity. (3) The relative contribution of each function to the total amount of depolarization changed with stimulus velocity. (4) The characteristics described in (1)–(3) were also found in the slow extensor tibiae motoneuron. (5) Single electrode voltage clamp studies on interneuron E4 indicated that no voltage dependent membrane properties were involved in the generation of the observed time course of decay. Thus, we can trace back a certain behavior (catalepsy) to the properties of an identified, nonspiking interneuron.
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Abbreviations
- FETi:
-
fast extensor tibiae motor neuron
- FT-joint:
-
femur-tibia joint
- FT-control loop:
-
femur-tibia control loop
- SETi:
-
slow extensor tibiae motor neuron
- R:
-
regression coefficient
References
Bässler U (1983a) Neural basis of elementary behavior in stick insects. Springer, Berlin Heidelberg New York
Bässler U (1983b) The neural basis of catalepsy in the stick insect Cuniculina impigra 3. Characteristic of the extensor motor neurons. Biol Cybern 46:159–165
Bässler U (1992) Variability of femoral chordotonal organ reflexes in the locust, Locusta migratoria. Physiol Entomol 17:208–212
Bässler U (1993) The femur-tibia control system of stick insectsa model system for the study of the neural basis of joint control. Brain Res Rev 18:207–226
Bässler U, Foth E (1982) The neural basis of catalepsy in the stick insect Cuniculina impigra 1. Catalepsy as a characteristic of the femur-tibia control system. Biol Cybern 45:101–105
Bässler U, Storrer J, Saxer K (1982) The neural basis of catalepsy in the stick insect Cuniculina impigra 2. The role of the extensor motor neurons and the characteristics of the extensor tibiae muscle. Biol Cybern 46:1–6
Büschges A (1989) Processing of sensory input from the femoral chordotonal organ by spiking interneurones of stick insects. J Exp Biol 144:81–111
Büschges A (1990) Nonspiking pathways in a joint-control loop of the stick insect Carausius morosus. J Exp Biol 151:133–160
Büschges A, Schmitz J (1991) Nonspiking pathways antagonize the resistance reflex in the thoraco-coxal joint of stick insects. J Neurobiol 22(3):224–237
Burrows M (1987a) Parallel processing of proprioceptive signals by spiking local interneurons and motor neurons in the locust. J Neurosci 7(4):1064–1080
Burrows M (1987b) Inhibitory interactions between spiking and nonspiking local interneurons in the locust. J Neurosci 7(10):3282–3292
Burrows M (1989) Proccessing of mechanosensory signals in local reflex pathways of the locust. J Exp Biol 146:209–227
Burrows M (1992) Local circuits for the control of leg movements in an insect. Trends Neurosci 15(6):226–232
Burrows M, Laurent G, Field LH (1988) Proprioceptive inputs to nonspiking local interneurons contribute to local reflexes of a locust hindleg. J Neurosci 8:3085–3093
Byrne JH (1980) Analysis of ionic conductance mechanisms in motor cells mediating inking behavior in Aplysia californica. J Neurophysiol 43(3):630–650
Connor JA, Stevens CF (1971) Voltage-clamp study of a transient outward membrane current in the gastropod neural somata. J Physiol (Lond) 213:21–30
Dixon WJ, Massey FJ (1969) Introduction to statistical analysis. 3rd edition, McGraw Hill, New York
Driesang RB (1990) Nichtspikende Interneurone im Femur-Tibia-Regelkreis der Stabheuschrecke Carausius morosus. Master's thesis, Univ. Kaiserslautern, Germany
El Manira A, Caettert D, Clarac F (1991a) Monosynaptic connections mediate resistance reflex in crayfish (Procambarus clarkii) walking legs. J Comp Physiol A 168:337–349
El Manira A, DiCaprio RA, Cattaert D, Clarac F (1991b) Monosynaptic interjoint reflexes and their central modulation during fictive locomotion in crayfish. Eur J Neurosci 3:1219–1231
Getting PA (1981) Mechanisms of pattern generation underlying swimming in Tritonia. I. Neuronal network formed by monosynaptic connections. J Neurophysiol 46(1):65–79
Godden DH (1974) The physiological mechanisms of catalepsy in the stick insect Carausius morosus Br. J Comp Physiol 89:251–274
Harris-Warrick RM, Marder E, Selverston AI, Moulins M (eds) (1992) Dynamic biological networks. MIT Press, Massachusetts Institute of Technology; Cambridge, Massachusetts
Hagiwara S, Kusano K, Saito N (1961) Membrane changes of Onchidium nerve cell in potassium-rich media. J Physiol (Lond) 155:470–489
Kehoe J (1972) The physiological role of three acetycholine receptors in synaptic transmission in Aplysia. J Physiol (Lond) 225:147–172
Laurent G (1990) Voltage-dependent nonlinearities in the membrane of locust nonspiking local interneurons, and their significance for synaptic integration. J Neurosci 10(7):2268–2280
Laurent G, Sivaramakrishnan A (1992) Single local interneurons in the locust make central synapses with different properties of transmitter release on distinct postsynaptic neurons. J Neurosci 12(6):2370–2380
Rall W (1969) Time constants and electrotonic length of membrane cylinders and neurons. Biophys J 9:1483–1508
Ritzmann RE, Pollack AJ (1990) Parallel motor pathways from thoracic interneurons of the ventral giant interneuron system of the cockroach, Periplaneta americana. J Neurobiol 21(8):1219–1235
Robertson RM, Pearson KG (1985) Neural circuits in the flight system of the locust. J Neurophysiol 53(1):110–128
Schmitz J, Delcomyn F, Büschges A (1991) Oil and hook electrodes for en passant recording from small nerves. In: Conn PM (ed) Methods in neuroscience 4. Academic Press, San Diego New York Boston, pp 266–278
Weidler DJ, Diecke FPJ (1969) The role of cation conduction in the central nervous system in the herbivorous insect Carausius morosus. Z Vergl Physiol 64:372–399
Weiland G, Koch UT (1987) Sensory feedback during active movements of stick insects. J Exp Biol 133:137–156
Wolf H (1991) Sensory feedback in locust flight patterning. In: Armstrong DM, Bush BMH (eds) Locomotor neural mechanisms in arthropods and vertebrates. Manchester Univ. Press, pp 134–148
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Driesang, R.B., Büschges, A. The neural basis of catalepsy in the stick insect. J Comp Physiol A 173, 445–454 (1993). https://doi.org/10.1007/BF00193517
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DOI: https://doi.org/10.1007/BF00193517