A comprehensive framework for decoding salty taste information from electroencephalography signals:distinguishing brain reactions to saltiness of comparable intensity  

作　　者：Jingjing Liu Yifei Xu Xingwang Lian Tianming Liu Haohao Ning Xi Jiang Shixin Yu Shikun Liu Lu Huang Xiaojun Sun Jiangyong Li Dongfu Xu 

机构地区：[1]School of Automation Engineering,Northeast Electric Power University,Jilin 132012,China [2]Department of Computer Science,the University of Georgia,Athens 30602,USA [3]School of Life Science and Technology,University of Electronic Science and Technology of China,Chengdu 611731,China

出　　处：《Food Science and Human Wellness》2025年第4期1538-1545,共8页食品科学与人类健康(英文)

基　　金：supported in part by the National Natural Science Foundation of China(31871882);National Key Research and Development Program of China(2021YFC2800403,YF-SHJD2101-3)。

摘　　要：The perception of salty taste is crucial for individuals to make healthy food choices.Yet,the brain electrophysiological signals underlying salty taste perception have been poorly described.In this study,electroencephalography(EEG)was used to record brain activity induced by Na Cl solution as a salty taste stimulus.A combination of a custom delivery device and stimulation paradigm was employed to preserve the salty taste signal clearly.A stimulus-response capture method was proposed that could adapt to individual differences in brain responses to salty taste and accurately segment salty taste response signals.Applying this method to the EEG processing workflow can form a complete data processing framework.The results showed that the neural response induced by salty taste reached a high activity level in the initial stage within a short period(0.2 s),and there was a sustained periodic response within 0.75 s after the stimulation.Moreover,the salty taste information in the EEG signal was decoded,and discrimination of 2 similar concentrations of salty taste solutions was achieved far above the chance level(average identification rate:89.66%).This study demonstrated experimental paradigms and research methods for understanding salty taste perception,which could provide references for research on other basic tastes.

关 键 词：Saltiness Salty perception ELECTROENCEPHALOGRAPHY Stimulus paradigm 

分 类 号：R74[医药卫生—神经病学与精神病学]