The USA and the European Union invested in the past years billions of dollars and euros in brain research. Perfect maps of the brain were developed thanks to this research, including the areas of the brain that control different body organ activity, and higher brain functions such as where speech and thought are taking place. The information inside of the brain is transfered by frequency and number of nervous impulses. Today it is well known which frequencies correspond to those different activities in the brain. So the brain, just like computers, functions in a digital way. It is now so much easier to understand or control the brain with computers.
Doctor Sarah Lisanby from the National Institute of Mental Health in Maryland can use those brain maps to make different parts of the human body move by the magnetic stimulation of its brain even against his own will (see this). To do this, she is using a magnetic coil which pulsates a magnetic field in a specific frequency, corresponding to the frequency of the activity of neurons in the brain spot, which controls the movements of a specific body part. The magnetic field can produce electric currents in the neurons, responsible for those movements, across the skull.
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