How Neurons Work

Learn how neurons work and how to excite a neuron when the signals cross a threshold.

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How neurons really work

Let’s look at how a neuron works. It takes an electric input and sends out another electrical signal. This looks exactly like the classifying or predicting machines we looked at earlier, which took an input, did some processing, and produced an output.

So, can we represent neurons as linear functions, like we did before? It’s a good idea, but no. A biological neuron doesn’t produce an output that is a simple linear function of the input. That is, its output does not take the form:

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