Akshay Paul

A novel, wearable, in-ear EEG technology to assess sleep and daytime sleepiness

Jonathan Berent, Prabhjyot Saini, Andrew X. Stewart, Devansh Bheda et autres

In-ear electroencephalography (EEG) has emerged as a promising alternative to traditional in-laboratory sleep studies, offering greater comfort and practicality. Here we present a novel in-ear EEG system, comparing in-ear recordings against scalp EEG channels acquired concurrently as part of polysomnography (PSG). The …

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Earable Platform with Integrated Simultaneous EEG Sensing and Auditory Stimulation

Min Suk Lee, Abhinav Uppal, Ananya Thota, Chetan Pathrabe et autres

Conventional scalp-based EEG systems are cumbersome to use, requiring extensive setup, restrictive wiring, and conductive gels that can dry out and limit long-term monitoring, while also carrying social stigma. As a result, there is increasing interest in in-ear EEG technology to improve …

Earable Platform with Integrated Simultaneous EEG Sensing and Auditory Stimulation

Min Suk Lee, Abhinav Uppal, Ananya Thota, Chetan Pathrabe et autres

Conventional scalp-based EEG systems are cumbersome to use, requiring extensive setup, restrictive wiring, and conductive gels that can dry out and limit long-term monitoring, while also carrying social stigma. As a result, there is increasing interest in in-ear EEG technology to improve …

A novel, wearable, in-ear EEG technology to assess sleep and daytime sleepiness

Jonathan Berent, Prabhjyot Saini, Andrew X. Stewart, Devansh Bheda et autres

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A 1024-Channel Hybrid Voltage/Current-Clamp Neural Interface System-on-Chip With Dynamic Incremental SAR Acquisition

Jun Wang, Omowuyi Olajide, Akshay Paul, Dinghong Zhang et autres

The demand for high-throughput, multi-modal recording and stimulation in neuroscience research has driven the development of neural interfaces that optimize area and energy efficiency without compromising noise performance. Simultaneously, the need for on-chip data compression to reduce data volume has become increasingly …

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Multiplexed Crossbar GFET Array With BioADC for Multi-Modal Aptamer-Based Sensing

Tyler A. Bodily, Min Suk Lee, Anirudh Ramanathan, Nigel J. Coburn et autres

. The GFET-NISoC system enables multiplexed, multi-modal sensing at sub-μW power levels and provides a promising foundation for wearable or point-of-care chemical and biomolecular monitoring.

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Multimodal Analysis of Acute Neurophysiological Effects of Tibetan BöN Tsa Lung Breathwork: Insights into Autonomic and Cortical Resilience Validated with Wearable Ear-EEG

Daniel Ehrens, Andrew Stewart, Akshay Paul, Tenzin Wangyal Rinpoche et autres

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Earable Platform with Integrated Simultaneous EEG Sensing and Auditory Stimulation

Min Suk Lee, Abhinav Uppal, Ananya Thota, Chetan Pathrabe et autres

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A Crossbar GFET Platform with BioADC Integration for Multiplexed, Energy-Efficient Biosensing

Tyler Bodily, Min Suk Lee, Anirudh Ramanathan, Akshay Paul et autres

We present platform technology consisting of a scalable, low-power graphene field-effect transistor (GFET) array integrated with a custom neural interface system-on-chip (NISoC) for multiplexed biosensing. The platform features a$10 \times 10$GFET crossbar architecture with high-density channel integration and side-gated liquid sensing, enabling …

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Brain-Body Coupling in Listening to Metronomic Sounds and Music

Abhinav Uppal, Min Suk Lee, Teng Fei, Adyant Balaji et autres

Wearables continue to expand their ability to sample more signals from the brain and body while reducing form factors and limiting on-device computing to meet real-world comfort and power constraints. Where evolving multimodal sensing platforms can combine electrophysiological (ExG), optical, chemical, and …

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In-Ear EEG Auditory Neurofeedback Towards Unobtrusive Sleep Enhancement

Min Suk Lee, Zhaoyi Liu, Abhinav Uppal, Jia Song et autres

Sleep is not only essential for maintaining quality of life, but also one of the most important factors in sustaining long-term health and fending off disease. Slow wave sleep (deep sleep) mediates the body's natural mechanisms for replenishing and repair. While pharmacological …

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Earable Multimodal Sensing and Stimulation: A Prospective Toward Unobtrusive Closed-Loop Biofeedback

Yuchen Xu, Abhinav Uppal, Min Suk Lee, Kuldeep Mahato et autres

The human ear has emerged as a bidirectional gateway to the brain's and body's signals. Recent advances in around-the-ear and in-ear sensors have enabled the assessment of biomarkers and physiomarkers derived from brain and cardiac activity using ear-electroencephalography (ear-EEG), photoplethysmography (ear-PPG), and …

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