Kerstin Lenk

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BACKGROUND Microelectrode array (MEA) is a widely used technique to study for example the functional properties of neuronal networks derived from human embryonic stem cells (hESC-NN). With hESC-NN, we can investigate the earliest developmental stages of neuronal network formation in the human brain. METHODS In this paper, we propose an in silico model of(More)
Synchrony and asynchrony are essential aspects of the functioning of interconnected neuronal cells and networks. New information on neuronal synchronization can be expected to aid in understanding these systems. Synchronization provides insight in the functional connectivity and the spatial distribution of the information processing in the networks.(More)
Neuronal networks are often studied in vitro using micro-electrode arrays (MEAs), where neurons are cultured on top of an electrode grid, and the action potentials can be recorded. This way the electrical activity of the network can be inspected at multiple locations simultaneously, which enables the studying of network behavior. A typical MEA has 60 of(More)
Our aim is to develop a simple model which is suitable to simulate concentration-response curves as observed in in-vitro experiments with multielectrode array (MEA) neurochips. In an in-vitro experiment approximately 10.000 neurons of the frontal cortex of embryonic mice [1] are cultivated on a MEA neurochip [2]. Neuro-active substances like bicuculline are(More)
Our aim is to design a model which demonstrates inhibitory and excitatory effects as observed in a neuronal network cultivated on a multielectrode array (MEA) neurochip. 1 Background 1.1 Experimental background A mouse has four millions of cortical neurons [1]. In an in-vitro experiment approximately 10.000 neurons of the frontal cortex of embryonic mice(More)
We aim to fit biphasic concentration-response curves to extract information about the effect of given biochemical substances to in-vitro neurons. Neurons extracted from embryonic mice are cultivated on multielectrode-array-neurochips (MEA-neurochip) [1]. The activity of single neurons in such networks is recorded especially the change of network activity(More)