Nature:注意了!注意力减退影响记忆功能!

2020-11-05 张佳兴 生物探索

你会不会遇到这种场景:走进房间的一瞬间忘了要做什么;打开抽屉的一瞬间忘了要拿什么;想找眼镜时想不起它在耳朵上;要用手机时想不起它在手上。你有没有考虑过以下问题:我们为何有时能记住、有时会忘记?

你会不会遇到这种场景:走进房间的一瞬间忘了要做什么;打开抽屉的一瞬间忘了要拿什么;想找眼镜时想不起它在耳朵上;要用手机时想不起它在手上。你有没有考虑过以下问题:我们为何有时能记住、有时会忘记?为什么有些人的记性更好呢?

现如今来自多媒体的多信息的冲击使得当代年轻人常常处于“多线程”中,此前已有研究表明这种分散注意力的行为会影响认知功能。我们想知道的是:注意力减退真的影响记忆功能吗?

国际一流学术期刊《Nature》在线发表了美国斯坦福大学Anthony D.Wagner、Kevin P. Madore等研究人员名为“Memory failure predicted byattention lapsing and media multitasking”的合作研究成果。该研究揭示了注意力减退对记忆的影响。

研究人员使用图片认知测试并记录了80名年轻人(平均年龄21.7岁)的脑电图和瞳孔直径,且结合问卷评估他们的注意力集中情况。研究人员发现,在记忆前一刻,注意力减退与记忆的神经信号减少、行为遗忘相关。

受试者注意力、记忆情况

随后,研究人员评估了记忆力水平与注意力集中水平差异的关系。证据表明,当记忆过程中发生注意力疏忽、关注度下降时,目标编码的强度会降低,且这些差异可能影响到到长期记忆过程。

注意力水平差异与记忆相关

研究人员认为,保持注意力的特征层次差异可部分解释媒体多任务处理与记忆力之间的负相关。较重的媒体多任务处理会引起注意力减退和遗忘。

媒体多任务处理会引起注意力减退

一个有趣的可能是:注意力调节了助记符或人的检索模式。较重的媒体多任务处理与较差的记忆有关,这或许与注意力频繁被破坏有关。对当下年轻人来讲,养成专注的习惯更适合大脑的运行方式,从而加快任务完成的速度。可是,即便面对记忆下降的窘境,多媒体的冲击仍然令年轻人的注意分散、专注力减退。有多少人能够保持专注、不被诱惑呢?

原始出处:

Kevin P. Madore, Anna M. Khazenzon, Cameron W. Backes,et al.Memory failure predicted by attention lapsing and media multitasking.nature.Published: 28 October 2020

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    2021-04-20 weiz
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    2021-03-23 liye789132251
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    2020-12-26 ms8000000340686503

    注意力

    0

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    2020-12-08 146b1eccm06暂无昵称

    0

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    2020-11-05 ms3000000924731757

    现在的诱惑太多了

    0

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