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Across more than 60 hours of detailed brain scans, imagination consistently aligned with regions that handle scenes, language, and events as integrated wholes.<\/p>\n
Mapping those patterns, Rodrigo Braga at Northwestern University Feinberg School of Medicine<\/a> showed that imagined experiences overlapped with perception after raw sensation had already been transformed into meaning.<\/p>\n That overlap appeared in the same association areas regardless of whether participants imagined scenes or inner speech, indicating a shared stage of processing.<\/p>\n Early sensory regions still contributed, but their limited role pointed to a broader system that assembles experience before it is used for planning or understanding.<\/p>\n Why replay struggles<\/p>\n For years, many scientists treated mental imagery as sensory reinstatement<\/a>, the idea that the brain reactivates sensory areas without outside input.<\/p>\n Earlier experiments<\/a> had already shown that imagined faces and places can stir some of the same visual regions as real ones.<\/p>\n Natural scenes and inner speech asked more of the mind, though, because they carry context, narrative and expectation all at once.<\/p>\n \u201cOur study doesn\u2019t refute sensory reinstatement theory, but it does suggest we need to refine it,\u201d said Braga.<\/p>\n Imagination and stored experiences<\/p>\n When volunteers imagined a castle on a hill or a birthday party, scene-building leaned on a broad internal system.<\/p>\n Earlier work<\/a> linked the default network, a set of regions active during internally directed thought, to memories and future plans.<\/p>\n In Braga\u2019s scans, that network coordinated with the hippocampus<\/a>, a key memory structure, when imagined scenes pulled together place, time, and detail.<\/p>\n That pattern fit the idea that rich imagination draws on stored experience, then rearranges it into something useful, not mere echo.<\/p>\n Imagined conversations feel like events<\/p>\n Inner speech did not ride the same circuitry as scenes, even when both kinds of imagination felt vivid and detailed.<\/p>\n A recent paper<\/a> showed that the language network, a distributed system for speech and reading, responds across auditory and visual input.<\/p>\n \u201cWhen you ask someone to imagine the sound of a kid\u2019s birthday party, they don\u2019t just hear it \u2013 they also automatically picture the scene,\u201d said Braga.<\/p>\n That blend of inner sound and scene helps explain why imagined conversations feel like events, not detached scraps of audio.<\/p>\n Vividness leaves marks<\/p>\n After leaving the scanner, participants described what they had experienced, giving the researchers a direct link between feeling and brain activity.<\/p>\n Higher activity in those association regions rose with reported vividness, so stronger images and clearer inner sounds left a stronger mark.<\/p>\n Eight people returned for eight separate sessions, a demanding design that let each person\u2019s own patterns stand out clearly.<\/p>\n That mattered because imagination varies from moment to moment, and averaging everyone together can wash out what it feels like.<\/p>\n Beyond the sensory cortex<\/p>\n Traditional brain studies often blur neighboring networks together, especially when they average many people into one shared map.<\/p>\n Working one person at a time, the team used precision functional MRI<\/a>, a scan that tracks activity through blood flow.<\/p>\n That approach exposed borders between nearby systems that older group-averaged maps can smear into one blurry pattern.<\/p>\n The cleaner view helps explain why earlier studies could point to sensory cortex and still miss where richer imagination mostly lives.<\/p>\n Networks that support human thought <\/p>\n Beyond this experiment, the same high-level regions have drawn attention because they expanded strongly over human evolution.<\/p>\n A 2019 analysis<\/a> found higher-order cognitive networks expanded more than primary sensory networks in humans compared with chimpanzees.<\/p>\n \u201cThese association areas are particularly interesting because they are greatly expanded in the human brain compared to our close evolutionary ancestors,\u201d said Braga.<\/p>\n That link does not prove imagination caused the expansion, but it strengthens the case that these networks support human thought.<\/p>\n Future research directions <\/p>\n Seeing imagination as a meaning-rich process changes where scientists may look when inner experience goes wrong.<\/p>\n That frame may matter for future work on disorders that blur inner events with outside ones.<\/p>\n Memory, planning and inner dialogue also sit closer together in this picture, because the same networks help build all three.<\/p>\n Even so, the study stopped short of disease claims, and it only mapped healthy volunteers performing carefully guided tasks.<\/p>\n Imagination in this account begins where the brain organizes meaning, linking sights, sounds, language and memory into a usable inner event.<\/p>\n Future work can test whether other forms of mental imagery, from music to fear, follow the same route or branch elsewhere.<\/p>\n The study is published in the journal Neuron<\/a>.<\/p>\n \u2014\u2013<\/p>\n Like what you read? Subscribe to our newsletter<\/a> for engaging articles, exclusive content, and the latest updates.\u00a0<\/p>\n Check us out on EarthSnap<\/a>, a free app brought to you by Eric Ralls<\/a> and Earth.com.<\/p>\n \u2014\u2013<\/p>\n","protected":false},"excerpt":{"rendered":"Researchers have found that imagination relies most strongly on higher-level brain systems that organize meaning \u2013 not on…\n","protected":false},"author":2,"featured_media":373832,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[85,46,125],"class_list":{"0":"post-373831","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-technology","8":"tag-il","9":"tag-israel","10":"tag-technology"},"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/posts\/373831","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/comments?post=373831"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/posts\/373831\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/media\/373832"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/media?parent=373831"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/categories?post=373831"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/tags?post=373831"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}