A grim end for these cyberfishies.
) conducted at Ben-Gurion University, researchers outfitted 15 goldfish with a special cyberpunk-esque headgear"to study this fundamental cognitive component in fish" by recording the"activity of neurons in the central area of the goldfish telencephalon while the fish were freely navigating in a quasi-2D water tank embedded in a 3D environment."
The surgery involved exposing the brain and attaching electrodes that were the size of a strand of human hair to a recording device that monitored the fish's brain activity. The surgeries had to be performed out of the water, so the brain surgeons pumped water and anesthetics into the fish's mouths, ensuring they would survive the procedure.
Once the goldfish recovered from their surgeries, they participated in swimming trials that involved navigating a special tank two feet long and six inches wide. What researchers discovered was that as the fish swam closer to the tank's edge, the navigational cells in their brains fired up.
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