Generating coherent patterns of activity from chaotic neural networks (Sussillo and Abbott 2009)


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Accession:127967
"Neural circuits display complex activity patterns both spontaneously and when responding to a stimulus or generating a motor output. How are these two forms of activity related? We develop a procedure called FORCE learning for modifying synaptic strengths either external to or within a model neural network to change chaotic spontaneous activity into a wide variety of desired activity patterns. ... Our results reproduce data on premovement activity in motor and premotor cortex, and suggest that synaptic plasticity may be a more rapid and powerful modulator of network activity than generally appreciated."
Reference:
1 . Sussillo D, Abbott LF (2009) Generating coherent patterns of activity from chaotic neural networks. Neuron 63:544-57 [PubMed]
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Model Type: Realistic Network;
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Simulation Environment: MATLAB (web link to model);
Model Concept(s): Temporal Pattern Generation; Oscillations; Rate-coding model neurons;
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