Scientists have managed to transplant the memories of one snail into another for the first time

At the University of California Los Angeles, they successfully staged an experiment on the transplantation of nerve cells with the knowledge they contain from one living being to another. Aplysia snails, beloved by neuroscientists, whose "brains" are very similar to human ones, but contain only 20, 000 neurons versus 100 billion in humans, were used as the experimental object. Some of these neurons became the object of transplantation.

The purpose of the experiment: to check whether it is possible to transfer the experience gained by one snail to another individual? For this, the "donor" was beaten with weak discharges of electric current into the tail, forcing him to be more careful and hide the sensitive part of his body in the shell for a longer time. As a result, after several days of "training", the difference between the control group reached 50 seconds of delay versus only one second in "untrained" snails.

Next, the scientists borrowed RNA from the neurons of "experienced" snails and injected them into seven untrained individuals. After several stages of cell division, the nervous system of the recipient snails began to respond to stimuli in the same way as their trained counterparts. There is a transfer of new, previously unknown reflexes and memory from one snail to another.

But the transmission was not complete and clean, the memory-transplanted snails performed worse than their "teachers." When simulated in a Petri dish, it turned out that RNA with memory affects only sensory, but not motor neurons. This changes the idea of ​​where exactly the memory is stored, and therefore the work on its transplantation is only at the very beginning of the journey. But the already achieved results inspire - humanity has one more chance to cope with serious brain diseases!