Ever wonder what your brain activity looks like while you think?
By inserting a flourescent gene into the brain of a zebrafish, researchers at Japan’s National Institute of Genetics were able to, for the first time ever, witness neural activity in a brain as it reacts to external stimulation.
The gene, GCaMP, caused the fishes neurons to visibly glow in response to the tracking of a light in it’s line of vision, as well as its stalking a paramecium for lunch. Researcher Koichi Kawakami concluded:
“We can make the invisible visible; that’s what is most important… In the future, we can interpret an animal’s behavior, including learning and memory, fear, joy, or anger, based on the activity of particular combinations of neurons.”
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