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In another influential study, training with a working memory task (the dual n-back task) has improved performance on a fluid intelligence test in healthy young adults. The improvement of fluid intelligence by training with the n-back task was replicated in 2010, but two studies published in 2012 failed to reproduce the effect. The combined evidence from about 30 experimental studies on the effectiveness of working-memory training has been evaluated by several meta-analyses. The authors of these meta-analyses disagree in their conclusions as to whether or not working-memory training improves intelligence. Yet, these meta-analyses agree in their estimate of the size of the effect of working-memory training: If there is such an effect, it is likely to be small.
In another influential study, training with a working memory task (the dual n-back task) has improved performance on a fluid intelligence test in healthy young adults. The improvement of fluid intelligence by training with the n-back task was replicated in 2010, but two studies published in 2012 failed to reproduce the effect. The combined evidence from about 30 experimental studies on the effectiveness of working-memory training has been evaluated by several meta-analyses. The authors of these meta-analyses disagree in their conclusions as to whether or not working-memory training improves intelligence. Yet, these meta-analyses agree in their estimate of the size of the effect of working-memory training: If there is such an effect, it is likely to be small.
在另一项有影响力的研究中，工作记忆任务('''<font color="#ff8000">双 n-back 任务 the dual n-back task)</font>'''训练提高了健康青年在流体智力测试中的表现。2010年再现了通过 n-back 任务训练提高流体智力的实验，但2012年发表的两项研究未能重现这一效果。一些元分析对约30个关于工作记忆训练有效性实验研究的综合证据进行了评估，对工作记忆训练是否能提高智力，分析者呈否定意见。然而，这些元分析对工作记忆训练效果的达成一致的是: 若确有提高效果，那可能也非常小。
在另一项有影响力的研究中，工作记忆任务('''<font color="#ff8000">双 n-back 任务 The Dual n-back Task)</font>'''训练提高了健康青年在流体智力测试中的表现。2010年再现了通过 n-back 任务训练提高流体智力的实验，但2012年发表的两项研究未能重现这一效果。一些元分析对约30个关于工作记忆训练有效性实验研究的综合证据进行了评估，对工作记忆训练是否能提高智力，分析者呈否定意见。然而，这些元分析对工作记忆训练效果的达成一致的是: 若确有提高效果，那可能也非常小。
== 脑内 In the brain ==
== 脑内 In the brain ==