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简要比较短时记忆和长时记忆的特点。

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正确答案:

①功能:短时记忆是操作性的,长时记忆是备用性的

②容量:短时记忆的容量是7±2个组块,长时记忆的容量很大

③表征:短时记忆以视觉或听觉的表象表征为主,也可以用抽象的语义命题表征;长时记忆的表达较复杂,一种观点认为陈述性知识以命题网络表征,程序性知识以产生式系统表征;另一种观点认为,长时记忆中的信息既可用语义编码,也可用形象编码。

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