NeuroPriv: Adversarial Representation Learning for Privacy in Wearable EEG Systems

• URL: http://arxiv.org/abs/2609.00390v1
• Date: Mon, 31 Aug 2026 21:19:22 GMT
• Title: NeuroPriv: Adversarial Representation Learning for Privacy in Wearable EEG Systems
• Abstract summary: Wearable EEG systems may expose sensitive information beyond their intended health function, creating substantial risks to neuroprivacy.<n>We show that commonly used EEG features can reveal participant identity and demographic attributes in addition to supporting the intended cognitive task.
• Score: 0.28547732086436306
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Wearable EEG systems may expose sensitive information beyond their intended health function, creating substantial risks to neuroprivacy. In this work, we show that commonly used EEG features can reveal participant identity and demographic attributes in addition to supporting the intended cognitive task. Wearable EEG is increasingly being explored for cognitive monitoring, neurological assessment, and longitudinal digital-health applications, yet many systems assume that transmitting compact spectral or spatial features instead of raw EEG provides sufficient privacy protection. Using EEGMAT as a motivating case study, we find that compact EEG features achieve a balanced accuracy of 0.788 for cognitive-state classification while enabling gender, age, and subject-identity inference with balanced accuracies of 0.858, 0.789, and 0.692, respectively. We further show that privacy-aware representation learning preserves task performance at 0.781 while reducing these inference accuracies to 0.563, 0.467, and 0.206. These findings motivate purpose-limited representations and explicit privacy auditing in wearable neurohealth systems.

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