PNAS:惊人发现——人类智商在缓慢下跌

2018-06-14 悠然 生物探索

6月11日,《PNAS》期刊以“Flynn effect and its reversal are both environmentally caused”为题发表了这一最新研究,来自于挪威Ragnar Frisch经济研究中心的两位科学家Bernt Bratsberg和Ole Rogeberg发现:人类的IQ值一直在缓慢下降!

6月11日,《PNAS》期刊以“Flynn effect and its reversal are both environmentally caused”为题发表了这一最新研究,来自于挪威Ragnar Frisch经济研究中心的两位科学家Bernt Bratsberg和Ole Rogeberg发现:人类的IQ值一直在缓慢下降!

人类变聪明?弗林效应

以往的研究表明,自上世纪上半叶开始,人们开始变得聪明。这一趋势被称为弗林效应(Flynn effect),即智商测试结果逐年增加。科学家们提出各种理论来解释这一现象,例如更好的营养、更好的医疗保健、更好的教育等,这些因素可能有助于智商的提高。

但是现在,最新的这项研究却给出了不同的结论:弗林效应已经结束,人类不再变得更聪明,相反,正朝着笨的方向变化。

变笨?新研究

具体来说,研究团队分析了参加挪威强制服兵役的年轻男子的IQ测试结果。从1970年到2009年,他们共采集了73万份数据。结果显示,平均每一代人IQ值会下降7分,这与约70年前的测试结果明显相反。

当然,也不全是坏消息。研究人员还发现一些家庭之间的差异,揭示IQ值下降可能是源于环境因素。他们指出,例如读书少、玩游戏多等生活方式的改变,可能是导致这种下降的原因之一。

遗憾的是,其他研究团队也发现了类似的结果:来自于英国的研究小组最新发现,二战结束之后,人类智商平均每10年下降2.5-4.3分。去年12月,美国科学家们证实,每周至少吃鱼一次的儿童,比很少吃鱼甚至不吃鱼的儿童,睡眠更好,且智商分数高出四分之一!

原始出处:
Bernt Bratsberg and Ole Rogeberg. Flynn effect and its reversal are both environmentally caused. PNAS, June 11, 2018.

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    2019-02-14 drwjr
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    2018-06-16 晓辰
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    2018-06-15 kafei

    了解一下谢谢

    0

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    2018-06-14 lyh994

    我怎么觉得现在的小孩比我们聪明太多了

    0

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    2018-06-14 wzb521zf

    一起学习.学习

    0

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