Direct brain to brain communication between persons

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Scientists have achieved brain to brain communication between humans. Scientists were able to demonstrate the conscious transmission of brain information from one person to another without any verbal, physical contact or motor and peripheral nervous systems interactions. 

Binary values that encoded words were transmitted between one person in India and another in France via the internet and email interfaces.  

The scientists were able to accomplish this feat through the employment of 2 technologies namely – Brain-Computer interface and Computer-Brain Interface which ensured that communication was non-invasive, cortical based and conscious. 

Brain-Computer Interface 

An electroencephalographic (EEG) was used to measure non-invasively brain activity associated with voluntary motor imagery.  

Conscious voluntary motor imagery controlled the vertical movement of a ball on a screen. Motor imagery of the hands encoded a ‘1’ result while motor imagery of the feet encoded a ‘0’ result. 

The code was successfully encoded if the ball hit a slider target on the screen. 

Computer-Brain Interface 

To convey the code to the other participant, a robotized transcranial magnetic stimulation (TMS) was used. The pulses from the TMS stimulated the production of phosphene in the participant. 

The participant perceived the phosphene production as light flashes and participants were instructed to verbally express when they perceived the flashes. 

By using these 2 interfaces, scientists were able to successfully encode and transmit the binary values of the words ‘hola’ and ‘ciao’.

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This technological feat will open the way for newer technologies that would allow more intelligent interactions between computers and the human mind. We could very well be switching on or off our devices with just a thought. 

Refined brain to brain communications between persons can also be developed, allowing for the conveyance of thoughts, emotions or perhaps even sensory experiences. 

Modes of communication could change drastically and messages could be conveyed without the need for physical network lines. 

Article Source: Conscious Brain-to-Brain Communication in Humans Using Non-Invasive Technologies
Grau C, Ginhoux R, Riera A, Nguyen TL, Chauvat H, et al. (2014) Conscious Brain-to-Brain Communication in Humans Using Non-Invasive Technologies. PLOS ONE 9(8): e105225. https://doi.org/10.1371/journal.pone.0105225

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