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TED演讲:“短期记忆”如何理解世界
来源:TED    日期: 2014-01-02

    Now working memory is great for allowing us to communicate. We can have a conversation, and I can build a narrative around that so I know where we've been and where we're going and how to contribute to this conversation. It allows us to problem-solve, critical think. We can be in the middle of a meeting, listen to somebody's presentation, evaluate it, decide whether or not we like it, ask follow-up questions. All of that occurs within working memory. It also allows us to go to the store and allows us to get milk and eggs and cheese when what we're really looking for is Red Bull and bacon. (Laughter) Gotta make sure we're getting what we're looking for. Now, a central issue with working memory is that it's limited. It's limited in capacity, limited in duration, limited in focus. We tend to remember about four things. Okay? It used to be seven, but with functional MRIs, apparently it's four, and we were overachieving. Now we can remember those four things for about 10 to 20 seconds unless we do something with it, unless we process it, unless we apply it to something, unless we talk to somebody about it.

    When we think about working memory, we have to realize that this limited capacity has lots of different impacts on us. Have you ever walked from one room to another and then forgotten why you're there? You do know the solution to that, right? You go back to that original room. (Laughter) Have you ever forgotten your keys? You ever forgotten your car? You ever forgotten your kids? Have you ever been involved in a conversation, and you realize that the conversation to your left is actually more interesting? (Laughter) So you're nodding and you're smiling, but you're really paying attention to this one over here, until you hear that last word go up, and you realize, you've been asked a question. (Laughter) And you're really hoping the answer is no, because that's what you're about to say. All of that talks about working memory, what we can do and what we can't do. We need to realize that working memory has a limited capacity, and that working memory capacity itself is how we negotiate that. We negotiate that through strategies.


标签:名人演讲

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