Positive feedback is a means of reinforcing a desired response in human behavior. The designers of video games know this.
“…Cow Clicker became a runaway success, with tens of thousands of subscribers eager to be exploited so transparently by clicking on a picture of a cow twice a day … The first evidence of video game-related dopamine release was published in Nature in 1998, and since then scientists have gone on to find that heavy gamers, particularly adolescents, develop larger reward centers in their brains as compared to non-gamers. Humans are built to achieve things, even as idiotic and pointless as acquiring a virtual golden cowbell,”
-Becky Crew, “Let the gamifying begin,” 12 Jan 2012 Cosmos
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