Predicting Spike Activity in Neuronal Cultures
Gurel, T.; Egert, U.; Kandler, S.; De Raedt, L.; Rotter, S.
Neural Networks, 2007. IJCNN 2007. International Joint Conference on
Volume , Issue , 12-17 Aug. 2007 Page(s):2942 - 2947
Digital Object Identifier 10.1109/IJCNN.2007.4371428
Summary:Neuronal cultures are small living networks in a closed system. This paper investigates the question whether it is possible to discover the functional connectivity and to model the dynamics of such neuronal cultures. Doing so may contribute to a better understanding of neural information processing. We employ a machine learning approach, which constructs the functional connectivity map of a neuronal culture based on multiple spike trains of its spontaneous activity recorded with Multi-Electrode-Array (MEA) technology. The spike train of an electrode is modeled as a point process, where the firing probability depends on the finite spike history of all electrodes. To capture potential plasticity of the network, we employ a gradient descent method, which naturally allows for online learning. Several experiments with different cultures show that learned models can predict upcoming spike activity quite well.
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