The neural architecture of language: Integrative modeling converges on predictive processing
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Abstract
Significance: Language is a quintessentially human ability. Research has long probed the functional architecture of language in the mind and brain using diverse neuroimaging, behavioral, and computational modeling approaches. However, adequate neurally-mechanistic accounts of how meaning might be extracted from language are sorely lacking. Here, we report a first step toward addressing this gap by connecting recent artificial neural networks from machine learning to human recordings during language processing. We find that the most powerful models predict neural and behavioral responses across different datasets up to noise levels. Models that perform better at predicting the next word in a sequence also better predict brain measurements—providing computationally explicit evidence that predictive processing fundamentally shapes the language comprehension mechanisms in the brain.
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Recent studies have increasingly explored LLM representations as analogs to neuroimaging data, aligning and comparing the human brain with the LLM brain during natural language processing.
“Recent studies have increasingly explored LLM representations as analogs to neuroimaging data, aligning and comparing the human brain with the LLM”
From Can "consciousness" be observed from large language model (LLM) internal states? Dissecting LLM representations obtained from Theory of Mind test with Integrated Information Theory and Span Representation analysis (2025) · cites this paper as Schrimpf et al., 2021
The intermediate-to-deep layers (l = 2/3 n_layers) of each LLM merit particular attention due to their demonstrated superior predictive capabilities for human brain activity.
“Additionally, we focused on the intermediate-to-deep layers ( 𝑙 = 2 3 𝑛 𝑙𝑎𝑦𝑒𝑟𝑠 ) of each LLM, as suggested by Caucheteux et al. (2023). These layers merit particular attention due to their demonstrated superior predictive capabilities for human brain activity (Schrimpf et al., 2021; Caucheteux and King, 2022; Caucheteux et al., 2023).”
From Can "consciousness" be observed from large language model (LLM) internal states? Dissecting LLM representations obtained from Theory of Mind test with Integrated Information Theory and Span Representation analysis (2025) · cites this paper as Schrimpf et al., 2021
The finding that Item 1 corresponds approximately to the 2/3 layer is consistent with previous studies suggesting that the 2/3 layer is optimal for predicting human brain activity.
“This finding is consistent with previous studies, which suggest that the 2 3 layer is optimal for predicting human brain activity (Schrimpf et al., 2021; Caucheteux and King, 2022; Caucheteux et al., 2023).”
From Can "consciousness" be observed from large language model (LLM) internal states? Dissecting LLM representations obtained from Theory of Mind test with Integrated Information Theory and Span Representation analysis (2025) · cites this paper as Schrimpf et al., 2021
LLM representations are being increasingly studied as analogs of neuroimaging data when comparing and aligning human brain activity with LLM 'brain' activity in natural language processing.
“While LLM representations are being increasingly studied as analogs of neuroimaging data when comparing and aligning human brain activity with LLM”
From Can "consciousness" be observed from large language model (LLM) internal states? Dissecting LLM representations obtained from Theory of Mind test with Integrated Information Theory and Span Representation analysis (2025) · cites this paper as Schrimpf et al., 2021
The 2/3 layer has been reported to exhibit strong alignment with human brain activity.
“as this layer has been reported to exhibit strong alignment with human brain activity (Schrimpf et al., 2021; Caucheteux and King, 2022; Caucheteux et al., 2023).”
From Can "consciousness" be observed from large language model (LLM) internal states? Dissecting LLM representations obtained from Theory of Mind test with Integrated Information Theory and Span Representation analysis (2025) · cites this paper as Schrimpf et al., 2021
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- Authors
- Schrimpf, M., Blank, I. A., Tuckute, G., Kauf, C., Hosseini, E. A., Kanwisher, N., Tenenbaum, J. B., & Fedorenko, E.
- Affiliations
- McGovern Institute for Brain Research (US)
- University of California, Los Angeles (US)
- Massachusetts Institute of Technology (US)
- Corresponding author
- Fedorenko, Evelina
- ORCID
- Venue
- Proceedings of the National Academy of Sciences
- Publisher
- National Academy of Sciences
- Published
- 2021-11-04
- Volume
- 118
- Issue
- 45
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- PMC
- PMC8694052
- OpenAlex
- W3210923133
- Cited by
- 517
- References
- 30
- Citations by year
- 2026: 99 · 2025: 120 · 2024: 103 · 2023: 134 · 2022: 55 · 2021: 5 · 2019: 1
- FWCI
- 39.04
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Proceedings of the National Academy of Sciences (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- eScholarship (California Digital Library) (submittedVersion, cc-by)
- Funders
- Takeda Pharmaceuticals U.S.A. (-)
- Massachusetts Institute of Technology (Shoemaker fellowship, Media Lab Consortia, Singleton fellowship, Presidential Graduate fellowship, Friends of the McGovern Institute Institute)
- Semiconductor Research Corporation (C-BRIC)
- National Science Foundation (NSF STC CCF-1231216)
- HHS | National Institutes of Health (R01-DC016607, R01-DC016950)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
- Life Sciences › Neuroscience › Cognitive Neuroscience › Embodied and Extended Cognition
- Social Sciences › Psychology › Developmental and Educational Psychology › Reading and Literacy Development
- Keywords
- predictive processing, language comprehension, neural architecture, transformer models, integrative modeling, next-word prediction, functional MRI, electrocorticography, model architecture
- MeSH terms
- Brain, Humans, Language, Models, Neurological, Neural Networks, Computer
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