Greg Dunn, "Red and Purple Tangles." Ink and mica on sized xuan, mounted on silk brocade scroll. X "This painting is meant to convey the complexity of the tangled mass of pyramidal neurons in the brain.
This computer model shows the connectivity of the neurons and 30 million connections that make up a single neocortical column (the basic building block of the cortex). The different colours correspond to different levels of electrical activity.
A new finding by Harvard stem cell biologists turns one of the basics of neurobiology on its head -- demonstrating that it is possible to turn one type of already differentiated neuron into another within the brain.
The two pictures below illustrate the similarities. The top picture shows the neural network of a brain cell; the bottom picture shows the distribution of dark matter in the universe as simulated by Millennium Simulation.