为了测试他们这些发现的有效性——也就是闯迷宫路线的记忆的增强是由应激性游泳，而并非是其他因素所导致的——研究人员实施了一系列的补充实验。
To test the validity of their findings-that the memory for navigating the maze was enhanced by the stressful swim and not other forces-the researchers conducted a series of additional experiments.
这一点，他补充说道：有可能要求他们采取一个比其他选择更为直接的路线。
This, he adds, may require them to take a much less direct route than they would otherwise choose.
空谈而不采取行动只能导致谈判破裂，休恩补充说，“我们是在谈判，而不是在做生意，我们希望每个人都能看到类似的前景或者路线图。”
Noting that talks could still collapse, he added: "This is not the global deal, but it's about getting everyone to have a similar vision, or roadmap."
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