{"id":764652,"date":"2026-09-09T04:06:11","date_gmt":"2026-09-09T04:06:11","guid":{"rendered":"https:\/\/www.newsbeep.com\/uk\/764652\/"},"modified":"2026-09-09T04:06:11","modified_gmt":"2026-09-09T04:06:11","slug":"a-neuroscientist-just-challenged-one-of-the-brains-biggest-assumptions-sciencealert","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/uk\/764652\/","title":{"rendered":"A Neuroscientist Just Challenged One of The Brain&#8217;s Biggest Assumptions : ScienceAlert"},"content":{"rendered":"<p>You may think you made a decision to read this article, but did you, really?\u00a0<\/p>\n<p>What we consider to be making a decision might in fact be a different kind of brain interaction between what we perceive, and the actions we take in response \u2013 less of a step-by-step linear process, and more of a circular feedback loop.<\/p>\n<p>In a new study published in the <a href=\"https:\/\/doi.org\/10.1162\/JOCN.a.2484\" rel=\"nofollow noopener\" target=\"_blank\">Journal of Cognitive Neuroscience<\/a>, neuroscientist Tom James from Indiana University challenges the conventional &#8216;sense-think-act&#8217; view of how the brain makes decisions, also known as the &#8216;sandwich model&#8217;.<\/p>\n<p>The core idea is that our feeling of deliberation (which pizza topping to have, for example) and the physical choice itself (opting for ham and pineapple) are actually happening together, triggered by the same neural activity in the brain.<\/p>\n<p>In other words, there&#8217;s no middle step between sense and act, just the illusion of one, the argument goes.<\/p>\n<p>&#8220;Explaining that the brain works by way of a central controller suggests that you haven&#8217;t figured out how the brain works, because you&#8217;ve just put a person inside your brain,&#8221; <a href=\"https:\/\/psych.indiana.edu\/news-events\/news\/2026\/decider-brain.html\" rel=\"nofollow noopener\" target=\"_blank\">says<\/a> James.<\/p>\n<p>&#8220;That person inside your brain would need another person inside its brain, which would need a person inside its brain and so on, in an infinite regress. So the problem is never solved. It&#8217;s just passed on.&#8221;<\/p>\n<p><img decoding=\"async\" width=\"642\" height=\"332\" src=\"https:\/\/www.newsbeep.com\/uk\/wp-content\/uploads\/2026\/09\/DecisionTree.jpg\" alt=\"Decision map\" class=\"wp-image-218219\"   loading=\"lazy\"\/>The idea of decision making may be an illusion, the study argues. (James, J. Cogn. Neurosci., 2026)<\/p>\n<p>There are several layers to the hypothesis put forward by James. <\/p>\n<p>One is that while sensory and <a href=\"https:\/\/www.sciencealert.com\/part-of-your-brain-acts-like-a-pause-button-that-freezes-your-whole-body\" rel=\"nofollow noopener\" target=\"_blank\">motor mechanisms<\/a> are connected to physical, biological machinery \u2013 like eyes to see an apple and a hand to grab it \u2013 decision-making doesn&#8217;t have a physical link.<\/p>\n<p>So while we might have the sense of making decisions, and decisions are actually being made, the neuroscience behind them needs a rethink.<\/p>\n<p>&#8220;The leap, I think, is to say that the brain works by having decision-making or control processes,&#8221; <a href=\"https:\/\/psych.indiana.edu\/news-events\/news\/2026\/decider-brain.html\" rel=\"nofollow noopener\" target=\"_blank\">says<\/a> James. &#8220;It produces behavior that is well described in that way.&#8221;<\/p>\n<p>&#8220;But it doesn&#8217;t need a process that does that to make it look that way.&#8221;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.newsbeep.com\/uk\/wp-content\/uploads\/2026\/09\/1788926770_416_0.jpg\" alt=\"YouTube Thumbnail\" tabindex=\"0\" role=\"button\" class=\"youtube-thumbnail-preview\" loading=\"lazy\"\/> frameborder=&#8221;0\u2033 allow=&#8221;accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share&#8221; referrerpolicy=&#8221;strict-origin-when-cross-origin&#8221; allowfullscreen&gt;<\/p>\n<p>James puts forward several analogies to make his point. One is saying &#8220;the university took certain actions.&#8221; <\/p>\n<p>For example, we might say &#8220;the university decided to close early.&#8221; The phrase can be useful shorthand, of course, but that&#8217;s an abstraction of the different meetings, calls, and other interactions that went into that decision. It does not identify the physical people and events that produced the outcome.<\/p>\n<p>Similarly, the neuroscientist argues, the idea of the brain having a separate decision-making moment is also an abstraction.<\/p>\n<p><a href=\"https:\/\/www.sciencealert.com\/newsletter?int_promo=stargazing\" rel=\"nofollow noopener\" target=\"_blank\"><img decoding=\"async\" width=\"642\" height=\"336\" src=\"https:\/\/www.newsbeep.com\/uk\/wp-content\/uploads\/2026\/09\/1788926771_738_FOMO-1200x628-_Dont-miss-the-next-breakthrough_-cosmic-colourful-642x336.jpg\" alt=\"Subscribe to ScienceAlert's free fact-checked newsletter\" class=\"wp-image-201722\"   loading=\"lazy\"\/><\/a><\/p>\n<p>Another analogy involves robots. If a robot is programmed to turn towards its targets and avoid collisions, those simple rules might lead it to follow along the walls of a room to find what it&#8217;s after.<\/p>\n<p>That strategy might appear to be a decision made by the robot \u2013 but actually, it&#8217;s simpler than that. It&#8217;s a result of more basic programming.<\/p>\n<p>&#8220;It looks intentional. It looks strategic. It looks like the robot is making decisions. And yet, it is not,&#8221; <a href=\"https:\/\/psych.indiana.edu\/news-events\/news\/2026\/decider-brain.html\" rel=\"nofollow noopener\" target=\"_blank\">says<\/a> James. <\/p>\n<p>&#8220;The reason we know it is not is that there are no systems built into it to do that.&#8221;<\/p>\n<p>Clearly, all of this reasoning needs to be put to the test in actual <a href=\"https:\/\/www.sciencealert.com\/how-much-stress-you-feel-when-making-choices-depends-on-what-kind-of-decision-maker-you-are\" rel=\"nofollow noopener\" target=\"_blank\">neuroscience studies<\/a> \u2013 there were no experiments or brain scans done here. What James is saying is that his framework could be a better way to understand the brain and what&#8217;s going on when we decide to do one thing and not another.<\/p>\n<p>One useful way forward might be to study choices and decisions in more dynamic, real-world settings rather than controlled lab tests, James suggests. <\/p>\n<p>It might also be helpful in future studies to not assume that an action \u2013 such as a button press or a switch in attention \u2013 has a separate, non-physical, abstracted decision behind it.<\/p>\n<p>Related: <a href=\"https:\/\/www.sciencealert.com\/scientists-uncover-shared-genetic-roots-of-ocd-tourette-syndrome-and-autism\" rel=\"nofollow noopener\" target=\"_blank\">Scientists Uncover Shared Genetic Roots of OCD, Tourette Syndrome, And Autism<\/a><\/p>\n<p>&#8220;Our actions feel like they are caused by decisions based on desires, beliefs, and intentions,&#8221; <a href=\"https:\/\/psych.indiana.edu\/news-events\/news\/2026\/decider-brain.html\" rel=\"nofollow noopener\" target=\"_blank\">says<\/a> James. <\/p>\n<p>&#8220;As mental phenomena, [decisions] are defined on too abstract a level for the goals of cognitive neuroscience.&#8221;<\/p>\n<p>The research has been published in the <a href=\"https:\/\/doi.org\/10.1162\/JOCN.a.2484\" rel=\"nofollow noopener\" target=\"_blank\">Journal of Cognitive Neuroscience<\/a>.<\/p>\n<p>This article was fact-checked by <a href=\"https:\/\/www.sciencealert.com\/rachel\" rel=\"nofollow noopener\" target=\"_blank\">Rachel Garner<\/a> and edited by <a href=\"https:\/\/www.sciencealert.com\/rebecca-dyer\" rel=\"nofollow noopener\" target=\"_blank\">Rebecca Dyer<\/a>. While we pride ourselves on our process, we are only human. If you spot a mistake, <a href=\"https:\/\/www.sciencealert.com\/contact-us\" rel=\"nofollow noopener\" target=\"_blank\">please let us know<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"You may think you made a decision to read this article, but did you, really?\u00a0 What we consider&hellip;\n","protected":false},"author":2,"featured_media":764653,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[59,102,249,56,54,55],"class_list":["post-764652","post","type-post","status-publish","format-standard","has-post-thumbnail","category-health","tag-gb","tag-health","tag-msft-content","tag-uk","tag-united-kingdom","tag-unitedkingdom"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/764652","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/comments?post=764652"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/764652\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media\/764653"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media?parent=764652"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/categories?post=764652"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/tags?post=764652"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}