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    11/7/2009

    记忆选择性过滤

    一日跟同事闲聊,说起她准备考研时的一些痛苦经历。但被问起一些细节时,却又大都记不起来。这大概就是常说的记忆选择性过滤。

    回想自己的经历,似乎也可以证明这个理论。高中三年,混得马马虎虎,没什么特别值得留恋,现在脑中的记忆已经非常模糊了。几个好朋友也很少联系,班级聚会也不积极参加,说起来还真有些惭愧。相反,大学四年的生活,则丰富多彩许多。加上成绩和人缘都混得不错,又大肆参加各种社团,结交了很多来自不同地方各种不同性格的朋友,那四年里值得回忆的东西实在是太多了。

    对于这个理论,其中的一个解释是,人会不自主地在某些时候回味快乐的记忆,特别是一个人寂寞或者悲伤的时候,需要用些幸福的事情来healing自己。而这种不定期地调取记忆会使得这些美好的回忆越来越清晰。用计算机的术语解释,就好比有些数据如果经常被load到内存中,它就会更经常更容易地被调用,处于fresh的状态。而那些被弃之于硬盘中很少访问的数据,自然就会慢慢被淡忘。

    这么说来,为了让我们在变老之后能有更好的记性,不如每天都过得快乐些,多留些美好的记忆给自己慢慢回味了 :)



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