Brain farts: 9 ways your brain can make you feel stupid

 作者:弓鹰     |      日期:2019-03-01 09:20:01
Gastón Mendieta By Helen Thomson This brain fart is so common it even has its own name: the “doorway effect”. Intrigued by this frustrating experience, Gabriel Radvansky at the University of Notre Dame, Indiana, and his colleagues asked people to navigate a virtual environment. Occasionally the participants would pick up an object, causing it to disappear from view. Now and again they would be asked what they were carrying. If they had moved into a different room, they were slower and less accurate at remembering what the object was. Radvansky repeated the experiment in genuine rooms and found the same thing: people’s powers of recall are worse after they pass through a doorway than when they walk the same distance within a room. What’s going on? As we move around the world, our brain is thought to construct what Radvansky calls a temporary “event model” of our environment and our thoughts and actions in it. But storing several event models at once is inefficient. “New environments may require new sets of skills, and so it is best to focus our memory on what is currently at hand,” says Radvansky. Doorways seem to trigger the replacement of one event model with another. This swap makes us more likely to forget what happened in the first room. It’s not just doorways that trigger this shift – passing from rural fields into a town can do it too, or from highways to backstreets,