Brain interface lets one monkey control the movements of another

neuroscientist have taken us one gradation closer to an Avatar - comparable world after demonstrating a brain - to - spinal anesthesia - cord port that allowed a “ master ” rascal to remotely control the hand movement of an “ avatar ” scamp who was completely unconscious .

scientist havealready developedbrain - to - braininterfaces , but this is the first monstrance of a brain - to - spinal anesthesia - cord interface . The find could eventually provide a paralyzed person to regain control over their muscularity by directly get around the hurt in their spinal cord .

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https://gizmodo.com/new-interface-allows-humans-to-move-a-rat-s-tail-with-t-469799719

https://gizmodo.com/brain-to-brain-interfaces-have-arrived-and-they-are-ab-5987567

The Master and the Avatar

To make it work , scientist at the Harvard Medical School engraft a chip in a “ master ” monkey ’s brain in edict to record the activity of some 100 neurons . While the scallywag moved , its physical action were mapped against patterns of electric body process in the nerve cell ( it ’s a tedious tryout - and - fault process , but it ’s the only way it can currently be done ) .

For honorable reasons , the “ avatar ” monkey was not made to be paralyze and was instead given a inviolable sedative . The scientist implanted 36 electrodes in its spinal cord , followed by tests to see how different stimulations of these electrodes could affect its movement .

During the experimentation , the two monkeys were hooked up such that the brain scans of the master could control the embodiment ’s movement in real metre . The avatar monkey , though unconscious , had its hand attached to a joystick .

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The master monkey was then wheedle to recollect about moving its partner ’s hand in and up and down motion in orderliness to take a computer cursor to a target — which it was capable to do 98 % of the time .

Direct to Spinal Cord

The experiment successfully demonstrated that it ’s possible to see to it the movement of a limb without having to now get muscles . finally , more refined versions may be design to allow a paralyzed person to control their own movements .

But for that to work , neuroscientists will have to make something far more precise and racy . nous waves — particularly across a department of 100 neurons — are far too limited for more detailed physical applications . It may be some time before scientists will be able-bodied to achieve more than just two - dimensional up and down hand movements . In all likelihood , they ’ll have to develop a system that takes other neurologic transmittal into report .

The other ramification of this study , of course , is the candidate of “ neuronal coupler ” — where two or more multitude are connect via brain interface ( again , we ’re speak about something significantly more powerful ) . This would appropriate people to control the movements of their partners . covering could range from everything through to physical renewal through to recreation .

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