Is EEG-to-Text Feasible in Real-World Scenarios? An In-Depth Analysis Using a Neuropsychology-Inspired Benchmark
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Computer Science > Machine Learning
arXiv:2607.18749 (cs)
[Submitted on 21 Jul 2026]
Title:Is EEG-to-Text Feasible in Real-World Scenarios? An In-Depth Analysis Using a Neuropsychology-Inspired Benchmark
Authors:Zihan Zhang (1), Yu Bao (1 and 2), Xiao Ding (1), Tianyi Jiang (3), Kai Xiong (4) ((1) Research Center for Social Computing and Interactive Robotics, Harbin Institute of Technology, (2) Shanghai Innovation Institute, (3) State Key Laboratory for Novel Software Technology, Nanjing University, (4) Zhongguancun Laboratory)
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Abstract:Translating brain signals into text could restore communication for people with severe paralysis, yet practically usable systems to date rely on invasive electrocorticography (ECoG). Electroencephalography (EEG) offers a non-invasive alternative, and EEG-to-text (EEG2Text) has been widely explored. Interestingly, however, EEG2Text models generally rely on teacher-forcing evaluation; without it, they fail to generate meaningful decoding. This reliance prevents EEG2Text from being applied in real-world, non-academic settings. This has fueled numerous debates about whether EEG2Text is a meaningful direction, by extension, and whether EEG truly contains decodable linguistic information. Here, using a neuropsychology-informed paradigm, we find that existing EEG2Text benchmarks have neglected EEG instability, a flaw that has confounded inference and sparked debate. Our experiments furnish key evidence for the feasibility of teacher-forcing-free EEG2Text decoding. Accordingly, we assemble the Corpus OF Eeg-To-Text (COFETT) using a 128-channel high-density EEG cap, providing a benchmark dedicated to evaluating EEG2Text models. In comparisons with multiple existing benchmarks, COFETT achieves SOTA ability to distinguish among model performances and enables robust, teacher-forcing-free evaluation, thereby opening a path toward practical EEG2Text applications. COFETT is open sourced in this https URL.
| Comments: | 17 pages, 8 figures. Published in Proceedings of ACL 2026 Main Conference |
| Subjects: | Machine Learning (cs.LG); Computation and Language (cs.CL); Emerging Technologies (cs.ET); Neurons and Cognition (q-bio.NC) |
| ACM classes: | I.2.7; J.3 |
| Cite as: | arXiv:2607.18749 [cs.LG] |
| (or arXiv:2607.18749v1 [cs.LG] for this version) | |
| https://doi.org/10.48550/arXiv.2607.18749
arXiv-issued DOI via DataCite (pending registration)
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| Journal reference: | Proceedings of the 64th Annual Meeting of the Association for Computational Linguistics, Volume 1: Long Papers (2026), 1378-1393 |
| Related DOI: | https://doi.org/10.18653/v1/2026.acl-long.61
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