Person-identifying brainprints are stably embedded in EEG mindprints

Abstract Electroencephalography (EEG) signals measured under fixed conditions have been exploited as biometric identifiers. However, what contributes to the uniqueness of one's brain signals remains unclear. In the present research, we conducted a multi-task and multi-week EEG study with ten pa...

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Main Authors: Yao-Yuan Yang, Angel Hsing-Chi Hwang, Chien-Te Wu, Tsung-Ren Huang
Format: Article
Language:English
Published: Nature Portfolio 2022-10-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-21384-0
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author Yao-Yuan Yang
Angel Hsing-Chi Hwang
Chien-Te Wu
Tsung-Ren Huang
author_facet Yao-Yuan Yang
Angel Hsing-Chi Hwang
Chien-Te Wu
Tsung-Ren Huang
author_sort Yao-Yuan Yang
collection DOAJ
description Abstract Electroencephalography (EEG) signals measured under fixed conditions have been exploited as biometric identifiers. However, what contributes to the uniqueness of one's brain signals remains unclear. In the present research, we conducted a multi-task and multi-week EEG study with ten pairs of monozygotic (MZ) twins to examine the nature and components of person-identifiable brain signals. Through machine-learning analyses, we uncovered a person-identifying EEG component that served as "base signals" shared across tasks and weeks. Such task invariance and temporal stability suggest that these person-identifying EEG characteristics are more of structural brainprints than functional mindprints. Moreover, while these base signals were more similar within than between MZ twins, it was still possible to distinguish twin siblings, particularly using EEG signals coming primarily from late rather than early developed areas in the brain. Besides theoretical clarifications, the discovery of the EEG base signals has practical implications for privacy protection and the application of brain-computer interfaces.
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spelling doaj.art-30a82adccbb94869be1ab36f82ed5dcc2022-12-22T04:06:58ZengNature PortfolioScientific Reports2045-23222022-10-0112111010.1038/s41598-022-21384-0Person-identifying brainprints are stably embedded in EEG mindprintsYao-Yuan Yang0Angel Hsing-Chi Hwang1Chien-Te Wu2Tsung-Ren Huang3Department of Computer Science and Engineering, University of California San DiegoDepartment of Communication, Cornell UniversityInternational Research Center for Neurointelligence (WPI-IRCN), The University of Tokyo Institutes for Advanced Study (UTIAS), The University of TokyoDepartment of Psychology, National Taiwan UniversityAbstract Electroencephalography (EEG) signals measured under fixed conditions have been exploited as biometric identifiers. However, what contributes to the uniqueness of one's brain signals remains unclear. In the present research, we conducted a multi-task and multi-week EEG study with ten pairs of monozygotic (MZ) twins to examine the nature and components of person-identifiable brain signals. Through machine-learning analyses, we uncovered a person-identifying EEG component that served as "base signals" shared across tasks and weeks. Such task invariance and temporal stability suggest that these person-identifying EEG characteristics are more of structural brainprints than functional mindprints. Moreover, while these base signals were more similar within than between MZ twins, it was still possible to distinguish twin siblings, particularly using EEG signals coming primarily from late rather than early developed areas in the brain. Besides theoretical clarifications, the discovery of the EEG base signals has practical implications for privacy protection and the application of brain-computer interfaces.https://doi.org/10.1038/s41598-022-21384-0
spellingShingle Yao-Yuan Yang
Angel Hsing-Chi Hwang
Chien-Te Wu
Tsung-Ren Huang
Person-identifying brainprints are stably embedded in EEG mindprints
Scientific Reports
title Person-identifying brainprints are stably embedded in EEG mindprints
title_full Person-identifying brainprints are stably embedded in EEG mindprints
title_fullStr Person-identifying brainprints are stably embedded in EEG mindprints
title_full_unstemmed Person-identifying brainprints are stably embedded in EEG mindprints
title_short Person-identifying brainprints are stably embedded in EEG mindprints
title_sort person identifying brainprints are stably embedded in eeg mindprints
url https://doi.org/10.1038/s41598-022-21384-0
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