Evidence from formal logical reasoning reveals that the language of thought is not natural language — part 10/10
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Schurz, M., Radua, J., Aichhorn, M., Richlan, F., & Perner, J. (2014). Fractionating theory of mind: A meta-analysis of functional brain imaging studies. Neuroscience and Biobehavioral Reviews, 42, 9– 34. https://doi.org/10.1016/j.neubiorev.2014.01.009 Schwettmann, S., Tenenbaum, J. B., & Kanwisher, N. (2019). Invariant representations of mass in the human brain. eLife, 8, e46619. https://doi.org/10.7554/eLife.46619 Scoville, W. B., & Milner, B. (1957). Loss of recent memory after bilateral hippocampal lesions. Journal of Neurology, Neurosurgery & Psychiatry, 20, 11–21. https://doi.org/10.1136/jnnp.20.1.11 Shain, C., Blank, I. A., Fedorenko, E., Gibson, E., & Schuler, W. (2022). Robust Effects of Working Memory Demand during Naturalistic Language Comprehension in Language-Selective Cortex. Journal of Neuroscience, 42(39), 7412–7430. https://doi.org/10.1523/JNEUROSCI.1894-21.2022 Shain, C., Blank, I. A., van Schijndel, M., Schuler, W., & Fedorenko, E. (2020). fMRI reveals language- specific predictive coding during naturalistic sentence comprehension. Neuropsychologia, 138, 107307. https://doi.org/10.1016/j.neuropsychologia.2019.107307 Shain, C., Kean, H., Casto, C., Lipkin, B., Affourtit, J., Siegelman, M., Mollica, F., & Fedorenko, E. (2024). Distributed Sensitivity to Syntax and Semantics throughout the Language Network. Journal of Cognitive Neuroscience, 36(7), 1427–1471. https://doi.org/10.1162/jocn_a_02164 Shain, C., Paunov, A., Chen, X., Lipkin, B., & Fedorenko, E. (2023). No evidence of theory of mind reasoning in the human language network. Cerebral Cortex, 33(10), 6299–6319. https://doi.org/10.1093/cercor/bhac505 Shojaee*†, P., Mirzadeh*, I., Alizadeh, K., Horton, M., Bengio, S., & Farajtabar, M. (2025). The Illusion of Thinking: Understanding the Strengths and Limitations of Reasoning Models via the Lens of Problem Complexity. https://ml-site.cdn-apple.com/papers/the-illusion-of-thinking.pdf Sneha, S., Daniel, J. M., Yaara, E., & John, D. (2019). Progressive Recruitment of the Frontoparietal Multiple-demand System with Increased Task Complexity, Time Pressure, and Reward. Journal of Cognitive Neuroscience, 31(11), 1617–1630. https://doi.org/10.1162/jocn_a_01440 Sperber, D., & Wilson, D. (1986). Relevance: Communication and Cognition. Blackwell. Spreng, R. N., Mar, R. A., & Kim, A. S. N. (2009). The common neural basis of autobiographical memory, prospection, navigation, theory of mind, and the default mode: A quantitative meta- analysis. Journal of Cognitive Neuroscience, 21(3), 489–510. https://doi.org/10.1162/jocn.2008.21029 Srivastava, A., Rastogi, A., Rao, A., Shoeb, A. A. M., Abid, A., Fisch, A., Brown, A. R., Santoro, A., Gupta, A., Garriga-Alonso, A., Kluska, A., Lewkowycz, A., Agarwal, A., Power, A., Ray, A., Warstadt, A., Kocurek, A. W., Safaya, A., Tazarv, A., … Wu, Z. (2023). Beyond the Imitation Game: Quantifying and extrapolating the capabilities of language models (arXiv:2206.04615). arXiv. https://doi.org/10.48550/arXiv.2206.04615 Tenenbaum, J. B. (Joshua B. (1999). A Bayesian framework for concept learning [Thesis, Massachusetts Institute of Technology]. https://dspace.mit.edu/handle/1721.1/16714 Tervo-Clemmens, B., Calabro, F. J., Parr, A. C., Fedor, J., Foran, W., & Luna, B. (2023). A canonical trajectory of executive function maturation from adolescence to adulthood. Nature Communications, 14(1), 6922. https://doi.org/10.1038/s41467-023-42540-8 Thompson-Schill, S. L. (2005). Dissecting the Language Organ: A New Look at the Role of Broca’s Area in Language Processing. In Twenty-first century psycholinguistics: Four cornerstones (pp. 173– 189). Lawrence Erlbaum Associates Publishers. Tyler, L. K., Marslen-Wilson, W. D., Randall, B., Wright, P., Devereux, B. J., Zhuang, J., Papoutsi, M., & Stamatakis, E. A. (2011). Left inferior frontal cortex and syntax: Function, structure and behaviour in patients with left hemisphere damage. Brain, 134(2), 415–431. https://doi.org/10.1093/brain/awq369 Varley, R. A., Klessinger, N. J. C., Romanowski, C. A. J., & Siegal, M. (2005). Agrammatic but numerate. Proceedings of the National Academy of Sciences of the United States of America, 102(9), 3519–3524. https://doi.org/10.1073/pnas.0407470102 .CC-BY 4.0 International licenseavailable under a was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made The copyright holder for this preprint (whichthis version posted July 29, 2025. ; https://doi.org/10.1101/2025.07.26.666979doi: bioRxiv preprint Varley, R., & Siegal, M. (2000). Evidence for cognition without grammar from causal reasoning and “theory of mind” in an agrammatic aphasic patient. Current Biology: CB, 10(12), 723–726. https://doi.org/10.1016/s0960-9822(00)00538-8 Wason, P. C. (1966). Reasoning. In P. C. Wason (Ed.), New Horizons in Psychology (pp. 135–151). Penguin Books. Wason, P. C., & Johnson-Laird, P. N. (1972). Psychology of reasoning: Structure and content (p. 264). Harvard U. Press. Wechsler, D. (2011). WASI-II - Wechsler Abbreviated Scale of Intelligence | Second Edition | Pearson Assessments US. https://www.pearsonassessments.com/en-us/Store/Professional- Assessments/Cognition-%26-Neuro/Wechsler-Abbreviated-Scale-of-Intelligence-%7C-Second- Edition/p/100000593 Wehbe, L., Blank, I. A., Shain, C., Futrell, R., Levy, R., von der Malsburg, T., Smith, N., Gibson, E., & Fedorenko, E. (2021). Incremental Language Comprehension Difficulty Predicts Activity in the Language Network but Not the Multiple Demand Network. Cerebral Cortex (New York, N.Y.: 1991), 31(9), 4006–4023. https://doi.org/10.1093/cercor/bhab065 Weiss, L. G., Saklofske, D. H., Holdnack, J. A., & Prifitera, A. (2016). WISC-V assessment and interpretation: Scientist-practitioner perspectives. Elsevier/AP, Academic Press is an imprint of Elsevier. Willems, R. M., Benn, Y., Hagoort, P., Toni, I., & Varley, R. (2011). Communicating without a functioning language system: Implications for the role of language in mentalizing. Neuropsychologia, 49(11), 3130–3135. https://doi.org/10.1016/j.neuropsychologia.2011.07.023 Wilson, S. M., Entrup, J. L., Schneck, S. M., Onuscheck, C. F., Levy, D. F., Rahman, M., Willey, E., Casilio, M., Yen, M., Brito, A. C., Kam, W., Davis, L. T., de Riesthal, M., & Kirshner, H. S. (2022). Recovery from aphasia in the first year after stroke. Brain, 146(3), 1021–1039. https://doi.org/10.1093/brain/awac129 Wittgenstein, L. (1921). Tractatus Logico-Philosophicus (Trans. Pears and Mcguinness) (L. Bazzocchi & P. M. S. Hacker, Eds.). Routledge. Woolgar, A., Bor, D., & Duncan, J. (2013). Global Increase in Task-related Fronto-parietal Activity after Focal Frontal Lobe Lesion. Journal of Cognitive Neuroscience, 25(9), 1542–1552. https://doi.org/10.1162/jocn_a_00432 Woolgar, A., Duncan, J., Manes, F., & Fedorenko, E. (2018). The multiple-demand system but not the language system supports fluid intelligence. Nature Human Behaviour, 2(3), 200–204. https://doi.org/10.1038/s41562-017-0282-3 Woolgar, A., Parr, A., Cusack, R., Thompson, R., Nimmo-Smith, I., Torralva, T., Roca, M., Antoun, N., Manes, F., & Duncan, J. (2010). Fluid intelligence loss linked to restricted regions of damage within frontal and parietal cortex. Proceedings of the National Academy of Sciences, 107(33), 14899– 14902. https://doi.org/10.1073/pnas.1007928107 Yang, G. R., Joglekar, M. R., Song, H. F., Newsome, W. T., & Wang, X.-J. (2019). Task representations in neural networks trained to perform many cognitive tasks. Nature Neuroscience, 22(2), 297–306. https://doi.org/10.1038/s41593-018-0310-2 Ye, X., Chen, Q., Dillig, I., & Durrett, G. (2023). SatLM: Satisfiability-Aided Language Models Using Declarative Prompting. Advances in Neural Information Processing Systems, 36, 45548–45580. Zelazo, P. D., & Carlson, S. M. (2020). The neurodevelopment of executive function skills: Implications for academic achievement gaps. Psychology & Neuroscience, 13(3), 273–298. https://doi.org/10.1037/pne0000208 Zimmerer, V. C., Cowell, P. E., & Varley, R. A. (2014). Artificial grammar learning in individuals with severe aphasia. Neuropsychologia, 53, 25–38. https://doi.org/10.1016/j.neuropsychologia.2013.10.014 Zorowitz, S., Chierchia, G., Blakemore, S.-J., & Daw, N. D. (2024). An item response theory analysis of the matrix reasoning item bank (MaRs-IB). Behavior Research Methods, 56(3), 1104–1122. https://doi.org/10.3758/s13428-023-02067-8 .CC-BY 4.0 International licenseavailable under a was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made The copyright holder for this preprint (whichthis version posted July 29, 2025. ; https://doi.org/10.1101/2025.07.26.666979doi: bioRxiv preprint