Here is one simulator you can use: https://briansimulator.org/ https://briansimulator.org/ Generally it is not known to my best knowledge how or whether the br

Here is one simulator you can use: https://briansimulator.org/ https://briansimulator.org/ Generally it is not known to my best knowledge how or whether the brain uses backpropagation (knowing that would be a huge result). However, several papers have been written on that topic with varying approaches. I encourage you to do a literature search if you want to dig deeper. On this topic it is worth mentioning that it is not even known why the brain uses discrete signals (spikes) for communication.