redletterdave writes: "For the very first time, Japanese researchers have recorded brain activity as thoughts are being formed, publishing their findings on Thursday night and uploading a video of their discovery to YouTube. To pull off this incredible feat, researchers chose a zebrafish, suitable for neuronal studies since its body is transparent during the embryonic and larval stages, and presented "prey" on an LCD display directly in front of the zebrafish’s right eye. When the fish spotted the food, researchers detected calcium signals on the left tectum, which disappeared when the spot was removed from view; in the video, you can see regions of the brain light up and then dim when the "prey" appears and disappears from view. Perhaps someday soon, techniques like these could help us gain better insight into how the brain impacts behavior in other animals, particularly humans."
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