ABSTRACT
Once brains have evolved into millions of neurons, the cells of one brain no longer correspond one to one with the cells of another brain, even though each of these brains may have the same suborgans. The brain physiologists are finding that in the course of development, any advanced mammal establishes connections among its brain cells that some other members of the same species do not. Studies on monkeys show that the brain first registers sensory percepts in primary cortical projection areas and then processes those percepts along a complex series of cortical association pathways. The child’s brain develops virtually all its potentially useful neural interconnections by the age of two, and then goes on to develop a lot more. The brains of children from three to eleven use twice as much energy as adults’ brains.
