Stephan Joeken

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A general method for developing data-based, stochastic nonlinear models of neurons by means of extended functional series expansions was applied to neural activities of pigeon auditory nerve fibers responding to Gaussian white noise stimuli. To determine Wiener series representations of the investigated neurons the fast orthogonal search algorithm was used.(More)
Spontaneous activities of pigeon auditory nerve fibres were tested for a renewal process. The experiments falsified mutually statistically independent lengths of time intervals between successive actions potentials. However, the generation of action potentials on the eighth nerve by a complex system as the inner ear might not be described by a simple(More)
Stephan Joeken and Jürgen Schnakenberg Institut für Theoretische Physik D, RWTH Aachen, Sommerfeldstraße, D-W-5100 Aachen, Bundesrepublik Deutschland Z. Naturforsch. 48c, 519-528 (1993); received December 17, 1992 Quantum Bumps in Photoreceptors, Reconstruction of Bumps, Shot Noise Analysis, Channel Events Shot noise analysis is a frequently applied method(More)
It is shown how neural spike train responses can be predicted by truncated Wiener series and by LN-cascade models. To prove the capability of these methods we test them on spike trains which have been generated by model neurons. The agreement of the approximated responses and the neuron response to known stimuli is analysed quantitatively by calculating(More)
Metabolic syndrome is characterized by hyperglycemia, hypertension, dyslipidemia and obesity. Diabetes and hypertension are the main causes of chronic end-stage kidney disease in humans. Chronic kidney disease is characterized by kidney inflammation and eventual development of kidney fibrosis. Low-level laser (or light) therapy (LLLT) can be used to relieve(More)
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