![Thumbnail of Somewhere over the brainbow](https://nesslabs.com/wp-content/uploads/2020/02/brainbow-banner.png)
Saved by Anne-Laure Le Cunff
Somewhere over the brainbow
Saved by Anne-Laure Le Cunff
The brain is a material network of neurons, synapses and biochemicals. The mind is a flow of subjective experiences, such as pain, pleasure, anger and love.
To simulate a brain, we need more than Hebb’s rule, however; we need to understand how the brain is built. Each neuron is like a tiny tree, with a prodigious number of roots—the dendrites—and a slender, sinuous trunk—the axon. The brain is a forest of billions of these trees, but there’s something unusual about them. Each tree’s branches make conne
... See moreRoughly speaking, the brain grows and develops in four steps. Neurons are created, or “born,” through the division of progenitor cells, migrate to their proper places in the brain, extend branches, and make connections.
Those beautiful color-dappled images are actually representations of particular areas in the brain that are working the hardest—as measured by increased oxygen consumption—when a subject performs a task such as reading a passage or reacting to stimuli, such as pictures of faces.
Marvin Minsky, co-founder of the Artificial Intelligence Laboratory at MIT, thinks of the brain as a society—a society of subassemblies cooperating to learn about the world.251 The image can easily be reversed. A society is a brain, a learning device that works according to the principles that drive a neural net.