Many of us have lost their lives, our childhood memories have diminished, if not completely disappeared. But before the age of 4 no one really remembers much, because almost all humans experience what is called “Infantile amnisia“The memories of which were made before the age that apparently apparently ends when we pass through a young age. And this is not just us. This trend is in many of our colleagues.
The simplest explanation will be that long -term memories are merely ignorant and do not start working effectively until children are targeted at the age of 4. But the recent animal experience shows that the situation of the mice is more complex: memories are there, they are generally not accessible, though they can be reactivated. Now, a study that has put human newborns into the MRITube shows that the memory activity begins at the age of 1, which shows that the results of the mice may apply to us.
Less than tomorrow’s memory
The rats are one of the species we know that infantry is the experience of amnia. And, thanks to more than a century of research on mice, we have some sophisticated genetic tools that allow us to discover what is really involved in the outward absence of animal memories.
A The paper that came out last year Explains a series of experiments that learn to look at very young rats with a mild shock. If nothing else has been done with these mice, this association will apparently be forgotten in life due to infantile ammonia.
But in this case, researchers could do something. Nervous activity is usually activated a set of genes. In these mice, the researchers engineered it, so a gene that activates a protein that can edit DNA. When this protein is made, it results in constant changes to other gene that have been entered into the animal’s DNA. Once the process is activated, the gene leads to the preparation of a light -driven ion channel.