Zobrazeno 1 - 10
of 113
pro vyhledávání: '"U Bässler"'
Autor:
Wolfgang Stein, U Bässler
Publikováno v:
Journal of Experimental Biology. 199:2185-2198
It is shown that the low-pass filter characteristics of the muscle–joint system of the femur–tibia joint of the stick insect Cuniculina impigra result from co-contraction of the extensor and flexor tibiae muscles. The most distal region of the ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed3728217524cc2f21fc3dd48e8e900b
https://doi.org/10.1242/jeb.199.10.2185
https://doi.org/10.1242/jeb.199.10.2185
Publikováno v:
Biological Cybernetics. 68:259-266
Attaching an inert mass to a freely moving tibia of an otherwise fixed stick insect Carausius morosus, induces undamped oscillations of the tibia. We describe the use of a rotational pendulum to observe these oscillations applying various amounts of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e253599e79e300480398456ee2403cf1
https://doi.org/10.1007/bf00224861
https://doi.org/10.1007/bf00224861
Sensory influences on the coordination of two leg joints during searching movements of stick insects
Publikováno v:
Biological Cybernetics. 64:329-335
Animals (Cuniculina impigra) possessing only one foreleg with restrained coxa perform very stereotyped searching movements during which the movements of the femur-tibia and coxa-trochanter joints are well coordinated. After ablation of either hairfie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a988713c13b0dbedf3ed6302d0bd6c91
https://doi.org/10.1007/bf00199597
https://doi.org/10.1007/bf00199597
Autor:
U. Bässler, Ansgar Büschges
Publikováno v:
Biological Cybernetics. 62:529-538
The active reaction upon stimulation of the femoral chordotonal organ in stick insects is known to control velocity and endpoint of flexion movements of the femur-tibia joint (Bassler 1988). This article presents evidence that spiking interneurones i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea6059cee68c42cc4de6f96d8495283f
https://doi.org/10.1007/bf00205115
https://doi.org/10.1007/bf00205115
Autor:
U. Nothof, U. Bässler
Publikováno v:
Biological Cybernetics. 62:453-462
Elongation of the femoral chordotonal organ (signalling a flexion movement of the femur-tibia joint) in stick insects being active releases the active reaction (AR) in the extensor and flexor motor neurones. The AR was released in hindlegs in a situa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e25e79b0d0ca1daca6e1afa62c3a0c0
https://doi.org/10.1007/bf00197651
https://doi.org/10.1007/bf00197651
Autor:
U. Bässler, U. Nothof
Publikováno v:
Journal of Comparative Physiology A. 175
In the artificially closed femur-tibia control system of stick insects oscillations were induced in 3 different ways: Increasing the phase-shift by introducing an electronic delay, afference sign reversal and coupling the tibia to an inert mass. In a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5e972b3e1d14f112d04db3538649b7b
https://doi.org/10.1007/bf00217433
https://doi.org/10.1007/bf00217433
Publikováno v:
Physiological Entomology. 11:359-366
Rapid relaxation (shortening) of the femoral chordotonal organ in Cuniculina impigra Redtenbacher induces a depolarization followed by hyperpolarization of the fast and slow extensor tibiae motor neurons (FETi and SETi). The initial depolarization is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::290b40b0ccc638253610d431625faa80
https://doi.org/10.1111/j.1365-3032.1986.tb00426.x
https://doi.org/10.1111/j.1365-3032.1986.tb00426.x
Autor:
U. Bässler, Thomas Hofmann
Publikováno v:
Physiological Entomology. 11:17-21
The campaniform sensilla on the trochanter of the stick insect, Cuniculina impigra Redtenbacher, were stimulated by slightly bending the leg in the horizontal plane. Single sensory units in the nerve were recorded using glass microelectrodes. These u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5dc74cfdd12f2faee6ae5d4530145992
https://doi.org/10.1111/j.1365-3032.1986.tb00386.x
https://doi.org/10.1111/j.1365-3032.1986.tb00386.x
Publikováno v:
Journal of Experimental Biology. 114:207-223
The femoral chordotonal organ of the stick insect Cuniculina impigra Redtenbacher (Phasmida) can be stimulated precisely by moving the receptor apodeme. Single sensory units in the sensory nerve are recorded using glass microelectrodes. The units are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87b6a1a896fbbd8c5784a5265f462633
https://doi.org/10.1242/jeb.114.1.207
https://doi.org/10.1242/jeb.114.1.207
Autor:
U. Bässler, H. J. Pflüger
Publikováno v:
Journal of Comparative Physiology ? A. 132:209-215
The control-system of the femur-tibia-joint is quantitatively described in the open loop configuration. The system very much resembles that ofCarausius. But the phase delay and the gain are smaller thus making the system very stable. There is no flex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33f27972a1be1d29a1277bf767920065
https://doi.org/10.1007/bf00614492
https://doi.org/10.1007/bf00614492