The human brain contains roughly 86 billion neurons, each connected to thousands of others through synapses, forming the most complex network known to science. From this biological circuitry emerges everything we experience — thoughts, memories, emotions, consciousness itself. Neuroscience seeks to understand how.
These simulations explore the fundamental building blocks of neural computation. Watch an action potential race down an axon, see how Hebbian learning strengthens connections between co-active neurons, train a simple neural network to classify patterns, and observe the different firing patterns that encode information in the brain.