Synaptische Erregung und Hemmung

Dudél, J.

doi:10.1007/978-3-642-56497-0_5

Cited by 3 publications

(3 citation statements)

References 26 publications

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“…The sensibility of these cells is continuously adjusted so that the receptor system converges to the rest position despite the continued excitation [7]. Hence, the perception of the continuous unchanging excitation is damped.…”

Section: (Right)mentioning

confidence: 99%

Modeling, Analysis and Control of Mechanoreceptors with Adaptive Features

Behn

2014

Informatics in Control, Automation and Robotics

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This work-the development of new control strategies and sensor models-is motivated by the open question which occurred during analysis of the functional morphology of vibrissal sensor systems. The reception of vibrations is a special sense of touch, important for many insects and vertebrates. The latter realize this reception by means of hair-shaped vibrissae, to acquire tactile information about their environments. The vibrissa receptors are in a permanent state of adaption to filter the perception of tactile stimuli. This behavior now may be mimicked by an artificial sensor system. The sensor system is modeled as a spring-mass-damper system with relative degree two and the system parameters are supposed to be unknown, due to the complexity of biological systems. Using a simple linear model of a sensory system adaptive controllers are considered which compensate unknown permanent ground excitations. The working principle of each controller (feedback law including adaptor) is shown in numerical simulations which prove that these controllers in fact work successfully and effectively. Moreover, practical implementation of these controllers to a demonstrator in form of an electrical oscillating circuit results in various successful experiments which confirm the theoretical results.

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Section: (Right)mentioning

confidence: 99%

Modeling, Analysis and Control of Mechanoreceptors with Adaptive Features

Behn

2014

Informatics in Control, Automation and Robotics

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“…In fact, the diameters of muscle fibres are not very different in elephants and fruit flies; adult skeletal muscle fibres range from 5 to 100·m in vertebrates, and actually up to several 100·m in invertebrates (e.g. Dudel et al, 2001), endowing the smaller invertebrates with correspondingly smaller numbers of muscle fibres.…”

Section: Introductionmentioning

confidence: 99%

Common and specific inhibitory motor neurons innervate the intersegmental muscles in the locust thorax

Bräunig

Schmäh

Wolf

2006

Journal of Experimental Biology

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SUMMARY The inhibitory innervation of the intersegmental (body wall) muscles between the first and the second thoracic segment of the migratory locust, Locusta migratoria, was investigated using neuroanatomical,immunocytochemical and electrophysiological techniques. Three neurons located in the prothoracic ganglion show GABA-like immunoreactivity and project into the intersegmental nerve. Two are common inhibitors. One of those innervates the oblique intersegmental muscle M59 and two dorsal longitudinal muscles (M81 and M82). The second common inhibitor also innervates M59 and the ventral longitudinal muscle M60. The third neuron innervates M60 exclusively and, for that reason, has to be regarded as the first specific inhibitor ever observed in insect neuromuscular assemblies. According to their innervation pattern, we term these neurons CI59/60, CI59/81/82, and SI60. CI59/81/82 and CI59/60 appear to be segmentally homologous to CIa and CIb neurons,respectively, in the other body segments.

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“…The activity of these muscles alternately flattens and expands the thorax, resulting in the up-and-down stroke of the wing. The oscillation characteristics of the mechanical system --thorax plus the two wings --determine the wingbeat frequency (Dudel et al 1996). Since the oscillating thorax determines the wingbeat frequency of both wings, only the wingbeat amplitude can be controlled independently for each wing.…”

Section: The Modelmentioning

confidence: 99%