Seems to be due to brain failure
Most people have had “familiar acquaintances”.
American researchers have identified the areas of the brain that cause this sensation, and believe the discovery could help treat memory-related disorders.
Takane Tone, a professor of biology and neuroscience at MIT, and colleagues have published the findings in the journal Science.
Researchers say a portion of nerve cells in the brain’s memory center were implanted in the hippocampus.
When people come to a new place and have a new experience, this part of the nerve cells will “draw” a memory “map”, and then hide these memories for later use.
However, if two experiences are very similar, their “maps” will overlap and become obvious.
When this happened, Tone Kagawa said, the brain would appear to have known each other.
In fact, it’s just because the brain fails to classify new information, that is, episodic memory.
The classification function of the brain gradually decreases with age, especially in patients with dementia.
Based on the results of this study, there is hope that drugs can be developed to improve this function.