The nervous system represents time-dependent signals in sequences of discrete action potentials or spikes, all spikes are identical so that information is carried only in the spike arrival times.
Entropy
A scientific paper by Steven P. Strong, Roland Koberle, Rob R. de Ruyter van Steveninck, and William Bialek
-NEC Research Institute, Princeton, New Jersey
-Department of Physics, Princeton University, Princeton, New Jersey


The authors show how to quantify this information, in bits, free from any assumptions about which features of the spike train or input waveform are most important.
The authors apply this approach to the analysis of experiments on a motion-sensitive neuron in the fly visual system.
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