First, the team must determine exactly how the time-stamping work and its effects on the brain and memory.

首先，研究小组必须精确地知道时间如何标记以及其对大脑和记忆的影响。

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Many controlled trials have examined the effects of caffeine on the brain, demonstrating that caffeine can improve mood, reaction time, memory, vigilance and general cognitive function.

很多实验表明咖啡因对大脑的有着积极的作用，能改善心情，减少反应时间，提升记忆力，提高警觉以及认知功能。

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RESULTS: Exposure time had more effects on the mice learning memory when the product of magnetic field intensity and magnetic exposure time was equal.

结果：恒定磁场强度与磁场暴露时间的乘积相等时，大剂量、短时间暴露比小剂量、长时间暴露对小鼠学习记忆能力的影响要小；

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