Spike Train

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A sequence of neural signals that are identical in size and shape, and occur in a specific time frame. Spike trains provide the ‘raw data’ from which acoustic pulses are translated by the brain into meaningful sounds
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So Richmond and Optican decided to start from scratch in testing the patterns seen in the spike train.
To answer this, Optican and Richmond proposed the multiplex filter model, explaining what might be creating these patterns in the spike train.
The first experiment tested a basic prediction of the multiplex filter model: If the spike train carries information about the Walsh function by adding together individual signals from the filters in one multiplexed signal, then the multiplexed signals for two Walsh functions, combined, should be the same as the signal produced in response to a pattern that is a combination of those two Walsh functions.
Germany) under the assumption that following the move from study of single neuron activity to the study of neuronal spike trains, analysis of simultaneously recorded, parallel neuronal spike trains is the logical next research step for understanding the neuronal mechanisms underlying information processing in the brain, because it is necessary to understand the variable and context-dependent coalitions among neurons and groups of neurons.