Since human brain stopped evolution or barely changed in the last 150,000 years, there is a possibility that computers will overtaken them in he near future with their exponentially promising capabilities and processing power, say scientists.
Since the brain of Homo sapiens was able to create instruments, the species has not needed to modify its biology to survive changes, so its evolution was restrained. In the process of their genetic superiority, they were able to create brain-computer interaction that is able to handle motor and sensitive activities for direct communication, to begin with, explains Charles Grau Fonollosa of the University of Barcelona.
In the first phase of human-computer interaction, relationship is established by means of the motor system in the pattern brain-computer (keyboard) or by means of a sense, for example sight, in the pattern computer-brain (screen).
In the second phase, which has just been initiated, communication is directly established between brain and computer, without the intervention of motor or sense elements. Direct communication takes place through interfaces and from this term emerge the concepts BCI (Brain Computer Interface) and CBI (Computer Brain Interface).
“Human brains have stopped to evolve structurally and our brain is practically like Homo sapiens’s. On the contrary, computers double their processing power every 18 months (Moore’s law).”
Currently, a computer is only able to do better and quicker some of the tasks brain does, for instance calculations, task planning and graphic information processing but in some years they will exceed human abilities, he said. “When computers will have learnt how to learn efficiently, big changes will happen; scientists name it singularity. They foresee changes are unpredictable,” he noted.
As digital telepathy or direct communication between distant brains with a tech support is possible, brains located at thousands of kilometres apart can communicate in a direct way, emitter equipped with a BCI and the receptor with a CBI, he noted.
Direct brain-to-brain communication, like many other technological advances, is about to turn real. It will require new legislation and the development of ethical criteria for using it, he said.
On the positive side, hes said direct introduction of information in the brain — without using the senses — allows modifying the brain through computer-based brain stimulation systems.
Though an emerging technology, it has many potential applications such as the improvement of cognitive function and the modification of brain functional patterns in diseases like epilepsy, depression, ictus and obsessive–compulsive disorder, he said.
Carles Grau Fonollosa directed the Neurodynamics Laboratory in the Department of Psychiatry and Clinical Psychobiology of the University of Barcelona between 2002 and 2012 and has published more than 60 scientific articles about normal behaviour and pathological brain function.
He is focusing on brain-computer interaction and its future impact on the mankind.