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Japanese Scientists Capture Video of Zebrafish Thinking


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February 04, 2013
Japanese Scientists Capture Video of Zebrafish Thinking - 0

Japanese scientists have captured video of a fish – thinking.  This marks the first time neuron signals firing across the brain of a living animal has been filmed.

Researchers at Saitama University's Brain Science Institute in Japan captured the footage  by utilizing zebrafish larva, which is largely transparent.  The group injected a specially developed protein, which becomes visible in the presence of calcium into the fish's neuronal DNA, triggering ions to fire.  This moment was captured on film.  Scientist were also able to film brain cells firing in the fish's optic tectum, the portion of the brain devoted to processing eye movement, when the fish was exposed to prey fish.  In other words, scientists saw the fish hunting in its brain.

Neuroscientist at King's College London Martin Meyer, who was not involved in the project, told ScienceNOW, "This technique will really help us understand how we make sense of the world and why we behave the way we do.”

We hunt, therefor we are.

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