This is a major clue to how the brain reorganizes itself during learning, says Graybiel, who is also a principal investigator at the McGovern Institute for Brain Research at MIT.

这对于理解大脑在学习过程中如何进行自我重组是一条重大的线索，格雷比尔说道，她也是麻省理工里脑研究所-麦戈尔研究所里最重要的调查员。

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But just then my cell phone rang. It was a private-investigator friend from Mexico City calling about a "research" job in the jungle.

但就在这时我的手机响了，一位当私人调查员的朋友从墨西哥城打来的，话题是关于丛林里的一项“研究”工作。

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Bob Olson is a former private investigator and skeptic who began using his investigation skills to research psychics, mediums and the afterlife in 1999.

鲍勃·奥尔森曾是一名私家侦探，出于怀疑的心态于1999年开始调查研究通灵、灵媒以及来生等问题。

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She also works as a research investigator for the Veterans Administration Ann Arbor Healthcare System.

VOA: special.2010.06.01

He is senior research scientist at NASA's Langley Research Center and principal investigator on the Mars ARES mission.

NPR: Revisiting the Viking Missions to Mars

Arne Vogler, a senior research engineer and principal investigator at the Hebridean Marine Energy Futures project, said hurricane force gusts had also been recorded.

BBC: Warning of high winds and snow forecast for Scotland

Joel Levine is senior research scientist at NASA's Langley Research Center and principal investigator on the Mars ARES mission proposed some time in the future.

NPR: Revisiting the Viking Missions to Mars