Decoding Continuous Character-based Language from Non-invasive Brain Recordings

Fuente: arXiv
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Autores principales: Zhang, Cenyuan, Zheng, Xiaoqing, Yin, Ruicheng, Geng, Shujie, Xu, Jianhan, Gao, Xuan, Lv, Changze, Ling, Zixuan, Huang, Xuanjing, Cao, Miao, Feng, Jianfeng
Formato: Preprint
Publicado: 2024
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author Zhang, Cenyuan
Zheng, Xiaoqing
Yin, Ruicheng
Geng, Shujie
Xu, Jianhan
Gao, Xuan
Lv, Changze
Ling, Zixuan
Huang, Xuanjing
Cao, Miao
Feng, Jianfeng
author_facet Zhang, Cenyuan
Zheng, Xiaoqing
Yin, Ruicheng
Geng, Shujie
Xu, Jianhan
Gao, Xuan
Lv, Changze
Ling, Zixuan
Huang, Xuanjing
Cao, Miao
Feng, Jianfeng
contents Deciphering natural language from brain activity through non-invasive devices remains a formidable challenge. Previous non-invasive decoders either require multiple experiments with identical stimuli to pinpoint cortical regions and enhance signal-to-noise ratios in brain activity, or they are limited to discerning basic linguistic elements such as letters and words. We propose a novel approach to decoding continuous language from single-trial non-invasive fMRI recordings, in which a three-dimensional convolutional network augmented with information bottleneck is developed to automatically identify responsive voxels to stimuli, and a character-based decoder is designed for the semantic reconstruction of continuous language characterized by inherent character structures. The resulting decoder can produce intelligible textual sequences that faithfully capture the meaning of perceived speech both within and across subjects, while existing decoders exhibit significantly inferior performance in cross-subject contexts. The ability to decode continuous language from single trials across subjects demonstrates the promising applications of non-invasive language brain-computer interfaces in both healthcare and neuroscience.
format Preprint
id arxiv_https___arxiv_org_abs_2403_11183
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Decoding Continuous Character-based Language from Non-invasive Brain Recordings
Zhang, Cenyuan
Zheng, Xiaoqing
Yin, Ruicheng
Geng, Shujie
Xu, Jianhan
Gao, Xuan
Lv, Changze
Ling, Zixuan
Huang, Xuanjing
Cao, Miao
Feng, Jianfeng
Computation and Language
Deciphering natural language from brain activity through non-invasive devices remains a formidable challenge. Previous non-invasive decoders either require multiple experiments with identical stimuli to pinpoint cortical regions and enhance signal-to-noise ratios in brain activity, or they are limited to discerning basic linguistic elements such as letters and words. We propose a novel approach to decoding continuous language from single-trial non-invasive fMRI recordings, in which a three-dimensional convolutional network augmented with information bottleneck is developed to automatically identify responsive voxels to stimuli, and a character-based decoder is designed for the semantic reconstruction of continuous language characterized by inherent character structures. The resulting decoder can produce intelligible textual sequences that faithfully capture the meaning of perceived speech both within and across subjects, while existing decoders exhibit significantly inferior performance in cross-subject contexts. The ability to decode continuous language from single trials across subjects demonstrates the promising applications of non-invasive language brain-computer interfaces in both healthcare and neuroscience.
title Decoding Continuous Character-based Language from Non-invasive Brain Recordings
topic Computation and Language
url https://arxiv.org/abs/2403.11183