Multimodal convergence of presynaptic afferent inhibition in insect proprioceptors

Stein W, Schmitz J (1999)
Journal of Neurophysiology 82(1): 512-514.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
Download
Es wurde kein Volltext hochgeladen. Nur Publikationsnachweis!
Autor/in
;
Abstract / Bemerkung
Stein, Wolfgang and Josef Schmitz. Multimodal Convergence of Presynaptic Afferent Inhibition in Insect Proprioceptors. J. Neurophysiol. 82: 512-514, 1999.In the leg motor system of insects, several proprioceptive sense organs provide the CNS with information about posture and movement. Within one sensory organ, presynaptic inhibition shapes the inflow of sensory information to the CNS. We show here that also different proprioceptive sense organs can exert a presynaptic inhibition on each other. The afferents of one leg proprioceptor in the stick insect, either the position-sensitive femoral chordotonal organ or the load-sensitive campaniform sensilla, receive a primary afferent depolarization (PAD) from two other leg proprioceptors, the campaniform sensilla and/or the coxal hairplate. The reversal potential of this PAD is about 59 mV, and the PAD is associated with a conductance increase. The properties of this presynaptic input support the hypothesis that this PAD acts as presynaptic inhibition. The PAD reduces the amplitude of afferent action potentials and thus likely also afferent transmitter release and synaptic efficacy. These findings imply that PAD mechanisms of arthropod proprioceptors might be as complex as in vertebrates.
Stichworte
leg; afferent; presynaptic; POTENTIALS; MOTOR; proprioceptor; action; femoral chordotonal organ; proprioceptive; convergence; Inhibition; insect; Cybernetics; CONDUCTANCE; MECHANISMS; Vertebrates; MECHANISM; Vertebrate; Sense organ; Communication; Invertebrate; Arthropod; Transmitter release; Transmitter; Action potential; ACT; input; increase; PAD; Campaniform Sensillum; Chordotonal Organ; Stick Insect; Presynaptic Inhibition; sensory organ; ORGAN; AFFERENTS; primary afferent depolarization; reversal; DEPOLARIZATION; sensory; movement; Posture; system; Information
Erscheinungsjahr
1999
Zeitschriftentitel
Journal of Neurophysiology
Band
82
Ausgabe
1
Seite(n)
512-514
ISSN
0022-3077
Page URI
https://pub.uni-bielefeld.de/record/1681429

Zitieren

Stein W, Schmitz J. Multimodal convergence of presynaptic afferent inhibition in insect proprioceptors. Journal of Neurophysiology. 1999;82(1):512-514.
Stein, W., & Schmitz, J. (1999). Multimodal convergence of presynaptic afferent inhibition in insect proprioceptors. Journal of Neurophysiology, 82(1), 512-514.
Stein, W., and Schmitz, J. (1999). Multimodal convergence of presynaptic afferent inhibition in insect proprioceptors. Journal of Neurophysiology 82, 512-514.
Stein, W., & Schmitz, J., 1999. Multimodal convergence of presynaptic afferent inhibition in insect proprioceptors. Journal of Neurophysiology, 82(1), p 512-514.
W. Stein and J. Schmitz, “Multimodal convergence of presynaptic afferent inhibition in insect proprioceptors”, Journal of Neurophysiology, vol. 82, 1999, pp. 512-514.
Stein, W., Schmitz, J.: Multimodal convergence of presynaptic afferent inhibition in insect proprioceptors. Journal of Neurophysiology. 82, 512-514 (1999).
Stein, W., and Schmitz, Josef. “Multimodal convergence of presynaptic afferent inhibition in insect proprioceptors”. Journal of Neurophysiology 82.1 (1999): 512-514.

Export

Markieren/ Markierung löschen
Markierte Publikationen

Open Data PUB

Web of Science

Dieser Datensatz im Web of Science®

Quellen

PMID: 10400981
PubMed | Europe PMC

Suchen in

Google Scholar