Having just left the door, I forgot what to do, how did science explain it?

Perhaps you have ever met such a thing, when going out the door, or from one room to another, forgetting what your original purpose was, may have to go back and forth several times, then remember what I want to do in the end. When you do, you don't need to worry, it's not that you have dementia, it's a normal phenomenon caused by the brain's memory mechanism.

Scientists call this short-term memory loss "door effect" (Doorway Effect). A 2011 study showed that this effect is caused by the brain at the same time handling many of the tasks that cause.

The human brain is extremely complex, it's like a super-class computer, processing a huge amount of information every day, but it can't store all the information, so it will tell save information in order of priority.

Short-term memory loss is caused by the brain at the same time dealing with many tasks.

When people enter a new situation, the brain records things in that context, and lists them as priority information to reserve, but once the situation leaves, the brain has I think that the information is no longer useful, and it deletes them, in preparation for receiving new information. This can explain why people after going through a door, changing a different situation, easily forget everything.

In this study, the researchers asked 55 students to play a computer game, in this game they had to transport furniture in a virtual building, from one room to another.

Every time when they go to another room, the image of an item will appear on the screen. If this item is an item they are holding or just dropped, they must choose to click "yes" . These images will sometimes appear after they enter the room, sometimes appear when they are still in the room.

The next researchers arranged a real-life version, and conducted the same experiment. The findings, whether or not they are in virtual mock testing or reality, result in people just going out the door, forgetting what they are doing, and this is not related to distance. . As long as it's in the room, no matter how far away, most of that memory is preserved very clearly, but just walking out of the door, no matter how far it goes, that memory is like being wiped away.

Researchers believe that the human brain sees the out-of-door position as the cut-off point of certain memories. As soon as you step out the door, it will erase the old memory, to tolerate new memories. Scientists have not yet figured out how to avoid this "out-of-door effect" .