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Main Authors: Zeng, Ziyi, Cai, Zhenyang, Cai, Yixi, Wang, Xidong, Chen, Junying, Wang, Rongsheng, Liu, Yipeng, Cai, Siqi, Wang, Benyou, Zhang, Zhiguo, Li, Haizhou
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2510.00032
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author Zeng, Ziyi
Cai, Zhenyang
Cai, Yixi
Wang, Xidong
Chen, Junying
Wang, Rongsheng
Liu, Yipeng
Cai, Siqi
Wang, Benyou
Zhang, Zhiguo
Li, Haizhou
author_facet Zeng, Ziyi
Cai, Zhenyang
Cai, Yixi
Wang, Xidong
Chen, Junying
Wang, Rongsheng
Liu, Yipeng
Cai, Siqi
Wang, Benyou
Zhang, Zhiguo
Li, Haizhou
contents Electroencephalography (EEG) interpretation using multimodal large language models (MLLMs) offers a novel approach for analyzing brain signals. However, the complex nature of brain activity introduces critical challenges: EEG signals simultaneously encode both cognitive processes and intrinsic neural states, creating a mismatch in EEG paired-data modality that hinders effective cross-modal representation learning. Through a pivot investigation, we uncover complementary relationships between these modalities. Leveraging this insight, we propose mapping EEG signals and their corresponding modalities into a unified semantic space to achieve generalized interpretation. To fully enable conversational capabilities, we further introduce WaveMind-Instruct-338k, the first cross-task EEG dataset for instruction tuning. The resulting model demonstrates robust classification accuracy while supporting flexible, open-ended conversations across four downstream tasks, thereby offering valuable insights for both neuroscience research and the development of general-purpose EEG models.
format Preprint
id arxiv_https___arxiv_org_abs_2510_00032
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle WaveMind: Towards a Conversational EEG Foundation Model Aligned to Textual and Visual Modalities
Zeng, Ziyi
Cai, Zhenyang
Cai, Yixi
Wang, Xidong
Chen, Junying
Wang, Rongsheng
Liu, Yipeng
Cai, Siqi
Wang, Benyou
Zhang, Zhiguo
Li, Haizhou
Signal Processing
Artificial Intelligence
Computation and Language
Machine Learning
Neurons and Cognition
Electroencephalography (EEG) interpretation using multimodal large language models (MLLMs) offers a novel approach for analyzing brain signals. However, the complex nature of brain activity introduces critical challenges: EEG signals simultaneously encode both cognitive processes and intrinsic neural states, creating a mismatch in EEG paired-data modality that hinders effective cross-modal representation learning. Through a pivot investigation, we uncover complementary relationships between these modalities. Leveraging this insight, we propose mapping EEG signals and their corresponding modalities into a unified semantic space to achieve generalized interpretation. To fully enable conversational capabilities, we further introduce WaveMind-Instruct-338k, the first cross-task EEG dataset for instruction tuning. The resulting model demonstrates robust classification accuracy while supporting flexible, open-ended conversations across four downstream tasks, thereby offering valuable insights for both neuroscience research and the development of general-purpose EEG models.
title WaveMind: Towards a Conversational EEG Foundation Model Aligned to Textual and Visual Modalities
topic Signal Processing
Artificial Intelligence
Computation and Language
Machine Learning
Neurons and Cognition
url https://arxiv.org/abs/2510.00032