Natural data processing nodes tend to specialize themselves. Our brain works with different internal structures where neurons are activated under different kind of stimuli. Neuroscientists have created maps of different regions for the different senses. This kind of regions are located in similar for all individuals, however this is not totally true. People that have born with a congenital lack of a sense can use that part of the brain to store information from other stimuli. This has been demonstrated scientifically many years ago, with an experiment where a group of cats was blinded at born. The results showed that the visual cortex in the blinded cats was activated with other kind of stimuli while the sighted group of control preserved the location of the visual cortex. This does not happen in individuals that have lost vision some years later. In this case, visual cortex usually is not activated again.