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Memory eraser

18.11.2021

Scientists have developed a "memory eraser" similar to the one shown in the movie "Men in Black". Researchers at Kyoto University have done a successful memory-deletion experiment on mice.

The rodents learned a new task, then were subjected to an optical effect with a special device, and as a result, they completely lost their memories of what had happened to them before. The technology is based on the destruction of the cofilin protein, which is responsible for the transition of short-term memory to long-term memory.

Is it possible to erase a person's memory in the same way? In fact, it’s not quite the same as in this film, when they just shine in the eyes with some kind of device.

First, these animals are genetically modified. They produce a modified protein that, when exposed to light, generates molecules that lead to local destruction. And secondly, they also have a second modified protein that helps to perceive this light. Plus, they also need to implant this light source. That is, these mice are not just genetically modified, but in their head, right in the skull, a window is made and an optical fiber is inserted there, which transmits light of a certain frequency, which shines on those nerve cells that work there.

Of course, this is not good for humans. Because, first, we need to insert this fiber that will shine into the brain. And if you shine like that on an ordinary person, not modified, then nothing will happen. We do not yet know exactly how memory works - we know the pieces of this process. We know the specific nodes through which the signal passes. And there, when they intervened in mice, they acted on just one of the nodal parts of the system. And we have this nodal part in the depths of the brain, where in order to crawl through, you need to go through ten centimeters of brain tissue.

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