Bryan M. Li

ORCID: 0000-0003-3144-4838
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About
Contact & Profiles
Research Areas
  • Mental Health Research Topics
  • Neural dynamics and brain function
  • Cell Image Analysis Techniques
  • Digital Mental Health Interventions
  • Bipolar Disorder and Treatment
  • Functional Brain Connectivity Studies
  • Generative Adversarial Networks and Image Synthesis
  • Advanced Fluorescence Microscopy Techniques
  • Emotion and Mood Recognition
  • Heart Rate Variability and Autonomic Control
  • Electroconvulsive Therapy Studies
  • EEG and Brain-Computer Interfaces
  • Advanced Image Processing Techniques
  • Psychosomatic Disorders and Their Treatments
  • Advanced Malware Detection Techniques
  • Image Processing Techniques and Applications
  • CCD and CMOS Imaging Sensors
  • Adversarial Robustness in Machine Learning
  • Image and Signal Denoising Methods
  • Physics and Engineering Research Articles
  • Eating Disorders and Behaviors
  • Network Packet Processing and Optimization
  • VLSI and Analog Circuit Testing
  • Cancer survivorship and care
  • Software Engineering Research

University of Edinburgh
2020-2025

The Alan Turing Institute
2025

Hospital Clínic de Barcelona
2022-2023

Universitat de Barcelona
2023

Art Institute of Portland
2019

Depressive and manic episodes within bipolar disorder (BD) major depressive (MDD) involve altered mood, sleep, activity, alongside physiological alterations wearables can capture. Firstly, we explored whether wearable data could predict (aim 1) the severity of an acute affective episode at intra-individual level 2) polarity euthymia among different individuals. Secondarily, which were related to prior predictions, generalization across patients, associations between symptoms data. We...

10.2196/45405 article EN cc-by JMIR mhealth and uhealth 2023-03-20

Mood disorders (MDs) are among the leading causes of disease burden worldwide. Limited specialized care availability remains a major bottleneck thus hindering pre-emptive interventions. MDs manifest with changes in mood, sleep, and motor activity, observable ecological physiological recordings thanks to recent advances wearable technology. Therefore, near-continuous passive collection data from wearables daily life, analyzable machine learning (ML), could mitigate this problem, bringing...

10.1038/s41398-024-02876-1 article EN cc-by Translational Psychiatry 2024-03-26

This work details CipherGAN, an architecture inspired by CycleGAN used for inferring the underlying cipher mapping given banks of unpaired ciphertext and plaintext. We demonstrate that CipherGAN is capable cracking language data enciphered using shift Vigenere ciphers to a high degree fidelity vocabularies much larger than previously achieved. present how can be made compatible with discrete train in stable way. then prove technique avoids common problem uninformative discrimination...

10.48550/arxiv.1801.04883 preprint EN other-oa arXiv (Cornell University) 2018-01-01

Abstract Mood disorders are among the leading causes of disease burden worldwide. They manifest with changes in mood, sleep, and motor-activity, observable physiological data. Despite effective treatments being available, limited specialized care availability is a major bottleneck, hindering preemptive interventions. Nearcontinuous passive collection data from wearables daily life, analyzable machine learning, could mitigate this problem, bringing mood monitoring outside doctor’s office....

10.1101/2023.03.25.23287744 preprint EN cc-by medRxiv (Cold Spring Harbor Laboratory) 2023-03-29

Background Bipolar disorder is highly prevalent and consists of biphasic recurrent mood episodes mania depression, which translate into altered mood, sleep activity alongside their physiological expressions. Aims The IdenTifying dIgital bioMarkers illnEss treatment response in BipolAr diSordEr with a novel wearable device (TIMEBASE) project aims to identify digital biomarkers illness bipolar disorder. Method We designed longitudinal observational study including 84 individuals. Group A...

10.1192/bjo.2024.716 article EN cc-by-nc-nd BJPsych Open 2024-08-01

Affective states influence the sympathetic nervous system, inducing variations in electrodermal activity (EDA), however, EDA association with bipolar disorder (BD) remains uncertain real-world settings due to confounders like physical and temperature. We analysed separately during sleep wakefulness varying potential differences mood state discrimination capacities. monitored from 102 participants BD including 35 manic, 29 depressive, 38 euthymic patients, healthy controls (HC), for 48 h....

10.1111/acps.13718 article EN Acta Psychiatrica Scandinavica 2024-06-18

Vast quantities of Magnetic Resonance Images (MRI) are routinely acquired in clinical practice but, to speed up acquisition, these scans typically a quality that is sufficient for diagnosis but sub-optimal large-scale precision medicine, computational diagnostics, and neuroimaging collaborative research. Here, we present critic-guided framework upsample low-resolution (often 2D) MRI full help overcome limitations. We incorporate feature-importance self-attention methods into our model...

10.3389/fncom.2022.887633 article EN cc-by Frontiers in Computational Neuroscience 2022-08-25

Personal sensing, leveraging data passively and near-continuously collected with wearables from patients in their ecological environment, is a promising paradigm to monitor mood disorders (MDs), major determinant of the worldwide disease burden. However, collecting annotating wearable resource intensive. Studies this kind can thus typically afford recruit only few dozen patients. This constitutes one obstacles applying modern supervised machine learning techniques MD detection.

10.2196/55094 article EN cc-by JMIR mhealth and uhealth 2024-05-24

Bipolar disorder (BD) is a severe psychiatric condition featuring autonomic nervous system dysfunctions, detectable with abnormal heart rate variability (HRV). This promising biomarker, but its dynamics over an acute episode of mania or depression, the two polarities BD, are poorly understood. Studies intra- individual HRV changes in BD cannot afford to recruit more than only few dozen patients, as collecting this kind data very resource-intensive. makes ground treacherous for frequentist...

10.31234/osf.io/6nzb9 preprint EN 2024-03-20

Abstract Bipolar disorder (BD) is a severe psychiatric condition featuring autonomic nervous system dysfunctions, detectable with abnormal heart rate variability (HRV). This promising biomarker, but its dynamics over an acute episode of mania or depression, the two polarities BD, are poorly understood. Studies intra-individual HRV changes in BD cannot afford to recruit more than only few dozen patients, as collecting this kind data very resource-intensive. makes ground treacherous for...

10.21203/rs.3.rs-4131049/v1 preprint EN cc-by Research Square (Research Square) 2024-03-25

Bipolar disorder (BD) involves autonomic nervous system dysfunction, detectable through heart rate variability (HRV). HRV is a promising biomarker, but its dynamics during acute mania or depression episodes are poorly understood. Using Bayesian approach, we developed probabilistic model of changes in BD, measured by the natural logarithm Root Mean Square Successive RR interval Differences (lnRMSSD). Patients were assessed three to four times from episode onset euthymia. Unlike previous...

10.1038/s44184-024-00090-x article EN cc-by npj Mental Health Research 2024-10-03

152 Background: Interventions that reduce symptom distress and enhance positive feelings are crucial for improving quality of life and, conceivably, overall survival cancer patients. One remedy is the immersive virtual reality relaxation (VR-R) environment/s to inspire an emotion-focused coping mechanism in Herein, we report on our experience with use this VR-R intervention normal volunteers patient volunteers. Methods: Fifty underwent training used 5 - 30 minutes. a software-based...

10.1200/jco.2018.36.34_suppl.152 article EN Journal of Clinical Oncology 2018-11-28

A bstract Vast quantities of Magnetic Resonance Images (MRI) are routinely acquired in clinical practice but, to speed up acquisition, these scans typically a quality that is sufficient for diagnosis but sub-optimal large-scale precision medicine, computational diagnostics, and neuroimaging research. Here, we present critic-guided framework upsample low-resolution (often 2D) MRI scans. In addition, incorporated feature-importance self-attention methods into our model improve the...

10.1101/2022.01.24.22269144 preprint EN cc-by-nc-nd medRxiv (Cold Spring Harbor Laboratory) 2022-01-24

A bstract Mood disorders are severe and chronic mental conditions exacting high costs from society. The lack of reliable biomarkers to aid clinicians in tailoring pharmacotherapy based on distinguishable patient-specific traits means that the current prescribing paradigm is largely one trial error. Previous studies showed different biological signatures, such as patterns heart rate variability or electro-dermal reactivity, associated with clinically meaningful outcomes. Against this...

10.1101/2022.05.19.22274670 preprint EN cc-by-nc medRxiv (Cold Spring Harbor Laboratory) 2022-05-22

Calcium imaging has become a powerful and popular technique to monitor the activity of large populations neurons in vivo. However, for ethical considerations despite recent technical developments, recordings are still constrained limited number trials animals. This limits amount data available from individual experiments hinders development analysis techniques models more realistic sizes neuronal populations. The ability artificially synthesize calcium signals could greatly alleviate this...

10.48550/arxiv.2009.02707 preprint EN other-oa arXiv (Cornell University) 2020-01-01

Introduction Mood episodes in bipolar disorder (BD) are still identified with subjective retrospective reports and scales. Digital biomarkers, such as actigraphy, heart rate variability, or ElectroDermal activity (EDA) have demonstrated their potential to objectively capture illness activity. Objectives To identify physiological digital signatures of during acute BD compared euthymia healthy controls (HC) using a novel wearable device (Empatica´s E4). Methods A pragmatic exploratory study....

10.1192/j.eurpsy.2022.575 article EN cc-by-nc-nd European Psychiatry 2022-06-01

Understanding how activity in neural circuits reshapes following task learning could reveal fundamental mechanisms of learning. Thanks to the recent advances imaging technologies, high-quality recordings can be obtained from hundreds neurons over multiple days or even weeks. However, complexity and dimensionality population responses pose significant challenges for analysis. Existing methods studying neuronal adaptation often impose strong assumptions on data model, resulting biased...

10.48550/arxiv.2111.13073 preprint EN other-oa arXiv (Cornell University) 2021-01-01

Accurate predictive models of the visual cortex neural response to natural stimuli remain a challenge in computational neuroscience. In this work, we introduce V1T, novel Vision Transformer based architecture that learns shared and behavioral representation across animals. We evaluate our model on two large datasets recorded from mouse primary outperform previous convolution-based by more than 12.7% prediction performance. Moreover, show self-attention weights learned correlate with...

10.48550/arxiv.2302.03023 preprint EN cc-by arXiv (Cornell University) 2023-01-01
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