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What Do Fish Thoughts Look Like? (Video)
By Sally Appert

Related articles: Science » Inspiring Discoveries

Epoch Times Staﬀ
Last Updated: February 5, 2013 Created: January 31, 2013

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22What Do Fish Thoughts Look Like? (1)GET THE FREE DAILY E-NEWSLETTEREnter your email:email address

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With new technology, scientists in Japan
have detected the thought that went
through a baby zebrafish’s brain when it
spotted some delicious food.
“Our work is the first to show brain
activities in real time in an intact animal during that animal’s natural behavior,” study co-author Koichi
Kawakami said in a press release.

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“We can make the invisible visible; that’s what is most important.”
The researchers read the fish’s brain signals with a sensitive fluorescent probe, which they inserted into

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the fish’s neurons using its genes.

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Hoping for a Gorbachev in Today's China“We developed an original method by which foreign DNA can jump into the fish genome,” Kawakami told

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We're onCalcium signals are evoked by a swimming paramecium. Credit: Current Biology, Muto et al.

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The researchers allowed a paramecium, a single-celled organism, to swim past the larval zebrafish. They
were able to see the activity in the fish’s brain when it saw the prey.
“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,” Kawakami said in the release.
Fish and human brains function in much the same way, according to the scientists. Although it wouldn’t
be possible to use this technology on humans, it could help us understand brain circuits better, and also
develop psychiatric medications.
“This has the potential to shorten the long processes for the development of new psychiatric
medications,” Kawakami explained in the release.
“You can screen thousands of chemicals for monitoring brain activity using the fish,” he added in theemail interview.

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The paper was published in the journal Current

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