Biological neurons

A biological neuron is a specialized biological cell that transmits electrical and chemical signals throughout living organisms. These remarkable structures form the computational foundation of brains, nervous systems, and even distributed neural networks in simpler creatures.

Each neuron consists of a cell body (soma), branching dendrites that receive signals, and a long axon that transmits them. When stimulated, neurons generate electrical impulses and release neurotransmitters—chemical messengers that cross synapses to influence neighboring cells. This process underlies everything from reflexive movement to complex consciousness and social interaction.

Neurons exhibit remarkable plasticity: they rewire themselves through experience, a process called neuroplasticity. Different neuron types—sensory neurons, motor neurons, interneurons—form intricate networks that process information using principles now mimicked in algorithms and computational models like LSTMs.

The study of biological neurons has revolutionized our understanding of learning, memory, and error correction in living systems. Their elegant design continues to inspire artificial neural networks and simulations seeking to replicate biological intelligence.

Related

Brain, Synapse, Neurotransmitter, Neuroplasticity, Artificial neural network, Cognitive science