The NeuroScience Gateway portal provides free access to computational neuroscientists to run parallel simulations, free of charge, on supercomputers using tools like GENESIS, NEURON, NEST, Brian, and PyNN. Read the rest of this entry…

Nengo is a new graphical and scripting based software package for simulating large-scale neural systems.

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The decision about the actual number of active neurons is an open issue in spike sorting, with sparsely firing neurons and background activity the most influencing factors. Dominant-sets clustering algorithm is a graph-theoretical algorithmic procedure that successfully addresses this issue. The quality of grouping in the data is evaluated with the estimation of ‘cohesiveness’, i.e. a cluster-quality measure, for each group.

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Background noise and spike overlap pose problems in contemporary spike-sorting strategies. The (non-linear) isometric feature mapping (ISOMAP) technique reveals the intrinsic data structure and helps with recognising the involved neurons.

To reproduce this tutorial in MATLAB you will need : Read the rest of this entry…

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