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Scientists have found a way to send brain-to-brain messages using brainwaves connected to computer technology.

A team of researchers from the University of Barcelona in Spain, Axilum Robotics in France, Harvard Medical School and Starlab Barcelona in Spain used EEG headsets to record the electrical activity in the brain related to the formulation of the words ‘hola’ and ‘ciao.’ A computer then converted these messages into binary and used electrical stimulation to implant the information into the receiver’s mind, which then appeared as specific flashes of light in the corner of their vision. The "telephathic" greeting was sent from subject in Thiruvananthapuram, India to another in Strasbourg using only brain-power.
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If rats can do it, we should be able to do it too.

A new computer program helps humans to do it. A new video game headband allows a person to use his mind to wag at rat’s tail.

To send his command, he looks at a strobe light flickering on a computer screen, and a set of electrodes stuck to his scalp detects the activity in his brain. A computer processes and relays the electrodes’ signal to an ultrasound machine over the rat’s head, which delivers low-energy ultrasound pulses into the its brain, stimulating its motor cortex–the area that controls its movements. The pulses are aimed at area the size of a grain of rice that controls the rat’s tail. It starts to wag.
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