Learning generates a brain reward:
This preference for knowledge about the future was intimately linked to the monkeys' desire for water. The same neurons in the middle of their brains signalled their expectations of both rewards - the watery prizes and knowledge about them.
Why information is its own reward - same neurons signal thirst for water, knowledge
All the neurons in question release the signalling chemical dopamine. While the monkeys were making their choices, Bromberg-Martin and Hikosaka recorded the activity of 47 dopamine neurons in their midbrains. These neurons became very excited when the monkeys saw a symbol that predicted a large amount of water, while the symbol that cued a smaller drink inhibited the neurons. The same dopamine neurons were excited during trials where the monkey only saw the symbol that heralded forthcoming information, and they were inhibited if they monkey only saw the other non-informative symbol.
(via Raph Koster
NASA’s Langley Research Center in Hampton, Virginia turns 100 this year. In celebration, the space agency produced this short documentary and enlisted Captain Kirk himself, William Shatner, to narrate. Here are just a few highlights from NASA Langley’s incredible history: • In times of peace and war, NASA Langley helped to create a better airplane, […]
Rio Celeste is a gorgeous Costa Rican river with a length that’s famous for its unusual turquoise waters. After decades of guessing, scientists finally determined the cause was aluminosilicate:
AntsCanada (previously) has an overpopulation problem in his yellow crazy ant colony, so he added two kinds of carnivorous pitcher plants. The resulting relationship between ant versus plant turned out to be quite fascinating.
The Fader Stealth Quadcopter from TRNDlabs packs incredible flight performance into a package small enough to land on your phone screen, and it’s available now in the Boing Boing Store.The Fader’s six-axis gyroscope module gives it perfect balance in the air. This makes the onboard 720p HD camera all the better for shooting amazing flight […]
Although fully autonomous vehicles aren’t yet allowed on public streets, they are poised to dominate the roads in the not-too-distant future. But before that happens, Apple, Google, Uber, and other companies now investing in self-driving tech are going to need talented developers that can account for the dizzying array of factors at play when a […]
The PiCar-V learning kit comes with everything you need to build a Python-powered robot, and it’s currently being offered in the Boing Boing Store.