The brain is extremely dynamic, building and pruning connections in milliseconds with many different types of neuroplasticity simultaneously arising in large circuits all over the brain. The holy grail of neuroplasticity has been the creation of new brain cells in adults. Research looking for one cell in a region of the brain is much more difficult than a needle in a haystack. Despite, overwhelming odds, study shows new neurons arising in at least three, and possibly more, places in the adult brain—both humans and other animals.
Recent research shows that new neurons at least in the critical memory center of the hippocampus, are critical to learning and memory and rapidly become part of existing circuits. In fact, they remodel the circuit to take in new material in new ways. A previous post described that more than a thousand different types of neurons exist. Neurogenesis research shows that these new adult born neurons may be completely new types of cells with increased excitability, more widespread connections, a new window of opportunity, and increased neuroplasticity. New neurons in adult brains remodel memory circuits to make information more specific.
Via Miloš Bajčetić, Lynnette Van Dyke