Then, at 2 p.m., the nap group was given the chance for a 90-minute siesta; the no-nap group was asked to stay awake.
然后，在下午2时，午睡组给予90分钟的午休机会，无午睡组被研究人员要求保持清醒。
Half the group was allowed to take a nap from 2 p.m. to 3:40 p.m., while the rest stayed awake throughout the day.
一半的参与者被允许在下午2点到3：40睡个午觉，另一半人整天保持清醒。
This did effectively allow me to skip the nap. I could stay awake for 8-9 hours straight without difficulty.
这很管用，我在后续的8到9个小时睡意全无。
Following this initial training, participants were assigned to either take a 90-minute nap or to engage in quiet activities but remain awake.
在初始训练结束后，受试者们或可以小睡90分钟或从事其他很安静的活动，但必须保持清醒。
Half the group was allowed to take a nap from 2 p. m. to 3:40 p. m., while the rest stayed awake throughout the day.
一半的参与者被允许在下午2点到3：40睡个午觉，另一半人整天保持清醒。
After the first session they were assigned randomly to either a control group, which remained awake, or a nap group, which had 100 minutes of monitored sleep.
在第一个时间段的学习过后，参与者被任意安排到两组：一组是“受控制组”——必须一直保持清醒；一组是“打盹儿组”——有100分钟的睡觉时间，期间全程监控。
After the first session they were assigned randomly to either a control group, which remained awake, or a nap group, which had 100 minutes of monitored sleep.
在第一个时间段的学习过后，参与者被任意安排到两组：一组是“受控制组”——必须一直保持清醒；一组是“打盹儿组”——有100分钟的睡觉时间，期间全程监控。
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