{
  "id": 302301,
  "title": "Multiple Nested Distributed Language Networks in the Human Brain",
  "url": "https://urgent.news/2026/08/08/multiple-nested-distributed-language-networks-in-the-human-brain",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-08-08T00:00:00.000Z",
  "source": {
    "name": "bioRxiv",
    "slug": "biorxiv",
    "url": "https://www.biorxiv.org/content/10.64898/2026.08.07.743553v1?rss=1"
  },
  "original_language": "en",
  "account": "Recent research has illuminated the complex structure of language networks within the human brain. Precision functional mapping across three separate cohorts of individuals, totaling 22 participants scanned in 216 MRI sessions, has revealed two distinct networks. These networks are positioned in the left hemisphere of the brain, with the intermediate language network (intLANG) and the association language network (aLANG) demonstrating a nested structure.\n\nintLANG is closely linked to precentral speech areas and the Sylvian parietal-temporal area (Spt). In contrast, aLANG envelops intLANG and expands into higher-order prefrontal and temporal association cortices. Remarkably, both networks can be understood as functional connectivity emanating from cerebellar regions, suggesting their segregation into distinct, brain-wide systems.\n\nFunctional distinctions between these networks were further elucidated through task-based analyses. The intLANG network was found to respond strongly during tasks emphasizing phonology, such as rhyme judgments and nonword reading. Conversely, the aLANG network showed a preference for meaning-based sentence processing.\n\nThese findings contribute to our understanding of human language processing, illustrating that the brain engages in nested distributed networks, each specialized for specific aspects of language. A lower-order network, intLANG, is dedicated to phonological processing, while a surrounding association network, aLANG, is implicated in higher-order syntax and semantics. This hierarchical organization mirrors similar patterns observed in other brain systems, pointing to a shared hierarchical motif that fosters specialized cognitive functions across the human brain.",
  "summary": "Brain regions specialized for language have been extensively described, yet their arrangement into one or multiple networks remains debated. Using precision functional mapping across three independent cohorts of intensively scanned individuals (22 individuals scanned over 216 separate MRI sessions), we dissociated two nested left-lateralized perisylvian networks: an intermediate language network…",
  "key_points": [
    "Human brain exhibits nested distributed language networks",
    "Two networks identified: intLANG and aLANG in left hemisphere",
    "intLANG linked to phonology, aLANG to syntax and semantics"
  ],
  "editors_take": null,
  "illustration": "https://urgent.news/ill/302301.png",
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}