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题库 / GMATAdvanced-CR-10
Errors in the performance of repetitive or “boring” tasks—often attributed to a momentary lapse in concentration—can be serious in such activities as flying a passenger aircraft. Is there any method that would provide warning of such lapses—for example by monitoring brain activity? Researchers scanned the brains of volunteers performing a repetitive task. When the tasks were being performed correctly, the volunteers’ brains showed activity in cognitive-processing regions. However, these regions became less active several seconds before some errors were made, and another brain region, region X, became active. The researchers concluded that the monitoring of region X could provide warning of an impending error.
Which of the following, if true, most supports the researchers’ conclusion?
The cognitive effort required in performing a repetitive task diminishes significantly with increases in the number of repetitions of the task performance.
Once a mistake was made and detected, brain activity in regions associated with cognitive effort sometimes increased.
Other research found that whenever significant activity occurs in region X, it is generally with repetitive tasks, soon before an error occurs.
The diminution of brain activity in cognitive processing regions and the increase of activity in region X began at least 5 seconds before the errors occurred.
Reduced activity in brain regions associated with cognitive effort was accompanied by increased activity in regions that become active during sleep.
相关因果，要加强的话，可以肯定现象和结论之间的联系。
现象：观察到因为工作无聊马上要犯错的时候，有些区域活跃度降低，X区域活跃度增加。
结论：监控X区域就能提前预警。
A 无关，随着重复次数，effort显著减少。
B 有的时候活跃度增加，无关
C 其他研究发现，X区域变得活跃的时候，都跟在做重复工作马上要犯错的时候。这就肯定了现象和结论之间的联系。
D 这种活跃减弱和活跃度增加发生在至少5秒前。这是描述具体的情况了，偏离了“现象和结论之间是否有联系”的重点。
E 认知区域活跃度减低伴随着睡觉的时候活跃度增加。无关。
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