{"id":948074,"date":"2026-05-09T10:11:25","date_gmt":"2026-05-09T10:11:25","guid":{"rendered":"https:\/\/www.europesays.com\/uk\/948074\/"},"modified":"2026-05-09T10:11:25","modified_gmt":"2026-05-09T10:11:25","slug":"scientists-stumped-as-lab-monkeys-play-video-games-without-expecting-any-reward","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/uk\/948074\/","title":{"rendered":"Scientists stumped as lab monkeys play video games without expecting any reward"},"content":{"rendered":"<p>Your support helps us to tell the story<\/p>\n<p class=\"sc-1uza6dc-0 iOIawn\">From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it&#8217;s investigating the financials of Elon Musk&#8217;s pro-Trump PAC or producing our latest documentary, &#8216;The A Word&#8217;, which shines a light on the American women fighting for reproductive rights, we know how important it is to parse out the facts from the messaging.<\/p>\n<p class=\"sc-1uza6dc-0 iOIawn\">At such a critical moment in US history, we need reporters on the ground. Your donation allows us to keep sending journalists to speak to both sides of the story.<\/p>\n<p class=\"sc-1uza6dc-0 iOIawn\">The Independent is trusted by Americans across the entire political spectrum. And unlike many other quality news outlets, we choose not to lock Americans out of our reporting and analysis with paywalls. We believe quality journalism should be available to everyone, paid for by those who can afford it.<\/p>\n<p><strong class=\"sc-1uza6dc-1 eRQajs\">Your support makes all the difference.<\/strong>Read more<\/p>\n<p><a href=\"https:\/\/www.independent.co.uk\/topic\/monkeys\" target=\"_blank\" rel=\"noopener\">Monkeys<\/a> voluntarily spent long periods playing a touchscreen <a href=\"https:\/\/www.independent.co.uk\/space\/elon-musk-monkey-neuralink-video-b1828913.html\" target=\"_blank\" rel=\"noopener\">video game <\/a>for a new <a href=\"https:\/\/www.independent.co.uk\/topic\/study\" target=\"_blank\" rel=\"noopener\">study<\/a>, driven purely by <a href=\"https:\/\/www.independent.co.uk\/topic\/curiosity\" target=\"_blank\" rel=\"noopener\">curiosity<\/a> without any food reward, leaving scientists stumped.<\/p>\n<p>The findings, according to researchers, can lead to a better understanding of how curiosity drives <a href=\"https:\/\/www.independent.co.uk\/news\/science\/chimps-contagious-peeing-human-relative-b2683412.html\" target=\"_blank\" rel=\"noopener\">animal behaviour<\/a>.<\/p>\n<p>Curiosity operates <a href=\"https:\/\/www.independent.co.uk\/news\/science\/raccoon-solves-puzzles-treats-study-b2953559.html\" target=\"_blank\" rel=\"noopener\">independent of extrinsic rewards<\/a> like food or mating opportunities and drives animals to explore their environments.<\/p>\n<p>But exactly how some parts of any animal\u2019s environment sparks more curiosity than others remains unclear.<\/p>\n<p>Researchers theorise that curiosity tends to be biased toward moderately complex or uncertain stimuli while avoiding overly simple or complex situations.<\/p>\n<p>This is called the &#8220;Goldilocks principle\u201d and also characterises human curiosity.<\/p>\n<p>However, very few studies have explored this impulse in animals.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.europesays.com\/uk\/wp-content\/uploads\/2026\/05\/Monkey-playing-video-game.png\"  loading=\"lazy\" alt=\"Monkey playing video game\" class=\"sc-1mc30lb-0 ggpMaE\"\/>Monkey playing video game (KyotoU\/Sakumi Iki)<\/p>\n<p>Scientists from Japan\u2019s Kyoto University assessed how curiosity works in monkeys by exposing them to a touchscreen video game.<\/p>\n<p>In recent years, video games have emerged as tools to help train cognitive abilities and improve the quality of life for humans.<\/p>\n<p>Studies have also explored whether video games can spark the engagement of animals in laboratories and zoos, and potentially help improve their welfare.<\/p>\n<p>&#8220;I originally studied play behaviour in wild monkeys, so I have long wanted to create situations in the laboratory where monkeys&#8217; play behaviour could emerge naturally,\u201d explained Sakumi Iki, an author of the study published in the journal iScience.<\/p>\n<p>Researchers probed exactly what kind of stimuli could elicit the curiosity of resident Japanese macaques.<\/p>\n<p>They developed a touchscreen-based game task inspired by hide-and-seek.<\/p>\n<p>In this game, when a monkey presses a button on the touchscreen, a puppet appears at a different location on the screen, depending on the button.<\/p>\n<p>The puppet appearances correspond to different levels of noise, with puppets appearing in a less predictable location the higher the noise level.<\/p>\n<p>Scientists observed the monkeys\u2019 responses to medium versus low noise, then medium versus high noise.<\/p>\n<p>They found that the monkeys chose the medium noise button, which made the puppet appear in a location that was somewhat predictable but still moderately uncertain.<\/p>\n<p>This suggests that macaques, like humans, have a tendency to actively explore stimuli with a moderate level of uncertainty compared to stimuli that are too simple or too random.<\/p>\n<p>The monkeys also spent long stretches of time playing the game, supporting the game&#8217;s success in sparking their curiosity.<\/p>\n<p>&#8220;In typical cognitive tasks, monkeys are usually given food rewards to keep them motivated, so I was not very confident they would engage with the game without rewards,&#8221; Dr Iki says.<\/p>\n<p>\u201cYet surprisingly, some monkeys worked on this game for nearly 100 trials even without any reward,\u201d he said.<\/p>\n<p>In future studies, researchers hope to apply the findings to develop more games that attract the monkeys&#8217; curiosity.<\/p>\n<p>They hope to identify the neural and cognitive mechanisms behind curiosity to gain a \u201cmore comprehensive understanding of this phenomenon\u201d.<\/p>\n","protected":false},"excerpt":{"rendered":"Your support helps us to tell the story From reproductive rights to climate change to Big Tech, The&hellip;\n","protected":false},"author":2,"featured_media":948075,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3847],"tags":[70,16,15,1717],"class_list":{"0":"post-948074","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-wildlife","8":"tag-science","9":"tag-uk","10":"tag-united-kingdom","11":"tag-wildlife"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@uk\/116544083542617983","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts\/948074","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/comments?post=948074"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts\/948074\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/media\/948075"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/media?parent=948074"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/categories?post=948074"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/tags?post=948074"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}