Path to Intelligence: Measuring Similarity between Human Brain and Large Language Model Beyond Language Task
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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866911149020151808 |
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| author | Ngo, Doai Sun, Mingxuan Zhang, Zhengji Ramayya, Ashwin G Schnitzer, Mark Zhao, Zhe |
| author_facet | Ngo, Doai Sun, Mingxuan Zhang, Zhengji Ramayya, Ashwin G Schnitzer, Mark Zhao, Zhe |
| contents | Large language models (LLMs) have demonstrated human-like abilities in language-based tasks. While language is a defining feature of human intelligence, it emerges from more fundamental neurophysical processes rather than constituting the basis of intelligence itself. In this work, we study the similarity between LLM internal states and human brain activity in a sensory-motor task rooted in anticipatory and visuospatial behavior. These abilities are essential for cognitive performance that constitute human intelligence. We translate the sensory-motor task into natural language in order to replicate the process for LLMs. We extract hidden states from pre-trained LLMs at key time steps and compare them to human intracranial EEG signals. Our results reveal that LLM-derived reactions can be linearly mapped onto human neural activity. These findings suggest that LLMs, with a simple natural language translation to make them understand temporal-relevant tasks, can approximate human neurophysical behavior in experiments involving sensory stimulants. In all, our contribution is two-fold: (1) We demonstrate similarity between LLM and human brain activity beyond language-based tasks. (2) We demonstrate that with such similarity, LLMs could help us understand human brains by enabling us to study topics in neuroscience that are otherwise challenging to tackle. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2509_08831 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Path to Intelligence: Measuring Similarity between Human Brain and Large Language Model Beyond Language Task Ngo, Doai Sun, Mingxuan Zhang, Zhengji Ramayya, Ashwin G Schnitzer, Mark Zhao, Zhe Neurons and Cognition Large language models (LLMs) have demonstrated human-like abilities in language-based tasks. While language is a defining feature of human intelligence, it emerges from more fundamental neurophysical processes rather than constituting the basis of intelligence itself. In this work, we study the similarity between LLM internal states and human brain activity in a sensory-motor task rooted in anticipatory and visuospatial behavior. These abilities are essential for cognitive performance that constitute human intelligence. We translate the sensory-motor task into natural language in order to replicate the process for LLMs. We extract hidden states from pre-trained LLMs at key time steps and compare them to human intracranial EEG signals. Our results reveal that LLM-derived reactions can be linearly mapped onto human neural activity. These findings suggest that LLMs, with a simple natural language translation to make them understand temporal-relevant tasks, can approximate human neurophysical behavior in experiments involving sensory stimulants. In all, our contribution is two-fold: (1) We demonstrate similarity between LLM and human brain activity beyond language-based tasks. (2) We demonstrate that with such similarity, LLMs could help us understand human brains by enabling us to study topics in neuroscience that are otherwise challenging to tackle. |
| title | Path to Intelligence: Measuring Similarity between Human Brain and Large Language Model Beyond Language Task |
| topic | Neurons and Cognition |
| url | https://arxiv.org/abs/2509.08831 |