News at Princeton

Wednesday, Aug. 27, 2014

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Inner workings of the brain II


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Bernd Kuhn, an associate research scholar in the laboratory of molecular biologist Sam Wang, used two-photon microscopy to make this three-dimensional reconstruction of a living mouse brain. An engineered virus was used to make the neurons express a calcium-sensitive fluorescent protein. Since calcium levels rise inside neurons when they fire, changes in brightness of the glowing cells can be used to report whether neurons are active. Read more.

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