Warren McCulloch was an American neurophysiologist and philosopher, born in 1898. He is best known for his pioneering work in the field of artificial intelligence and neural networks. Along with Walter Pitts, he developed the first mathematical model of a neuron, which laid the groundwork for understanding how the brain processes information. McCulloch's contributions extended beyond neuroscience; he also explored the relationship between logic and mathematics. His ideas influenced various fields, including computer science and cognitive psychology. McCulloch passed away in 1969, but his legacy continues to impact research in both neuroscience and artificial intelligence.