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Technology, transhumanism

3D Shot projects holograms into the brain to reproduce sensations (and restore sight to the blind)

Fake experiences and memories, new sight for the blind, increased senses: a device being tested on mice can open the doors of the holographic universe

May 26, 2019
Gianluca RiccioGianluca Riccio
⚪ 3 minutes
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You are on the top of a mountain and observe from above an immense expanse of snow, eternal glaciers that reflect the light in a thousand colored reflections, while you breathe deeply in the purest and sparkling air. Such a magical moment is too good to be true.

And in fact maybe it isn't.

At least that's what will happen when the research project at the University of Berkeley is finished.

Use light to show us what doesn't exist

Our temporal experiences produce a trace in the brain: neurons light up in sequence and transmit sensations and reactions to our body. Neuroscientists are trying to reverse engineer these experiences to try to revive them simply by stimulating neurons to "redo that path".

Today the process is quite invasive: neurons must be genetically modified with photosensitive proteins so that they can be manipulated by making them react to light (it is an emerging science called optogenetics). To manage everything, it is then necessary to surgically implant a metal plate on the area used.

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The challenge is instead to stimulate experiences in the brain by illuminating the surface of the cortex as with a lighthouse with the help of luminous holograms that reproduce in 3D the neural pathways that are to be replicated.

"The advantage is that we can control neurons precisely and specifically," explains Nicolas Pegard, one of the authors of the study published in Nature Neuroscience. "This is a meeting point of different technologies, which we have never been able to put together before".

Nicolas Pégard, "Sculpting the light in the brain"

The result is a "brain holographic modulator", an optogenetic system called 3D-SHOT, presented last year with an article in the journal Nature Communications.

What 3D-SHOT does

The potential of the device is incredible, especially in the medical field: to stimulate sight in the blind and hearing in the deaf, bring some sensations back to people with damaged peripheral nerves and help control robotic limbs even better.

“Reading and writing neural pathways is a bit like talking to the brain with its language, and making it interpret the messages much better. This will lead us one day to develop technologies that can also enhance our senses or add new ones ".

First steps

The current stage of the research is the 3D Shot prototype test on the visual, tactile and motor areas of the brain of mice.

The next step is to train the mice so that they can observe the behavior change due to the stimulation: behavioral observation is the only possible method, also because you cannot directly ask the mouse to tell you what that race on the wheel is like that it is NOT doing in reality, but the sensation of which you have transmitted to it in the brain.

It will then be necessary to set the precision of the device to act on specific areas of the brain by stimulating precise sensations, and miniaturize the components to get to insert the 3D Shot in a backpack (today it practically occupies almost an entire room).

The next step is human testing, until one day to live fantastic experiences totally induced in our brain by advanced technology. Maybe it's already happening and we don't know, Elon Musk and scientists who believe we are living in a simulation or a whole "holographic" universe would say.

Either way, it's not a Matrix thing, right? QUITE RIGHT?

Tags: brainhuman enhancementhologramsholographic universe


GPT Chat Megaeasy!

Concrete guide for those approaching this artificial intelligence tool, also designed for the school world: many examples of applications, usage indications and ready-to-use instructions for training and interrogating Chat GPT.

To submit articles, disclose the results of a research or scientific discoveries write to the editorial staff

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