For the first time ever, scientists have captured thought on video in real 員 t looks like a pink and purple grain of rice zipping around a large Dur- le 部 Really, that grain of rice is a thought moving around in the brain a zebrafish. Researchers at the National Institute ef 人Qene08 in Japan picked。 the brafish for this study because it has a see- -tbrough body By が the nes ofe zebrafish larvae, scientists can make certain parts of the fish glow ith Huofeseence. Since neurons in the brain use calcium to fire, the Saita- ia University researchers linked a protein to the fish's genes that glows the pf6Rence of calcium. When neurons fire in the fish's brain, the pro- in lights up,and we can seeit withthe helpofa 06808nt microscODe. je can make the invisible yastpeGDet most important,” said re- earcher Koichi Kawakami. ME 409 Ame tt Once yourve got a fish with a glowing brain, how do you know what it's inking about? Before recording the thought, the scientists fjgured out hich neurons in the fish's brain responded to movement. Then, they re- leased a paramecium, a tiny single-celled creature that the fsh love to eat- the paramecium moved, neurons in the fsh's brain Hit up in a pattern at matched the fish's motion. 5|So what does a fish think about? Thats easy 一 food! 9上 民【