Resources


Database Credentialed Access

Association of Sleep Electroencephalography-Based Brain Age Index With Dementia - Data and code

Elissa Ye, Haoqi Sun, Michael Leone, Luis Paixao, Robert Thomas, Alice Lam, M Brandon Westover

De-identified polysomnography dataset and analysis code from Ye et al. 2020 (JAMA Netw Open): sleep-EEG-based Brain Age Index (BAI) computed across 9,834 MGH Sleep Lab PSGs and tested as a biomarker for dementia and MCI versus healthy controls.

machine learning biomarker sleep mild cognitive impairment polysomnography dementia eeg brain age

Published: April 25, 2026. Version: 1.0.0

Database Credentialed Access

Harvard Electroencephalography Database

Sahar Zafar, Tobias Loddenkemper, Jong Woo Lee, Andrew Cole, Daniel Goldenholz, Jurriaan Peters, Alice Lam, Edilberto Amorim, Catherine Chu, Sydney Cash, Valdery Moura Junior, Aditya Gupta, Manohar Ghanta, Marta Fernandes, Haoqi Sun, Jin Jing, M Brandon Westover

Harvard Electroencephalography Database

routine eeg epilepsy monitoring unit electroencephalography icu eeg epilepsy eeg

Published: Feb. 10, 2025. Version: 4.1

Database Restricted Access

SPaRCNet data: Seizures, Rhythmic and Periodic Patterns in ICU Electroencephalography

Jin Jing, Wendong Ge, Aaron F Struck, Marta Fernandes, Shenda Hong, Sungtae An, Safoora Fatima, Aline Kherlopian, Ioannis Karakis, Jonathan Halford, Marcus Ng, Emily Johnson, Brian Appavu, rani sarkis, Gamaleldin Osman, Peter Kaplan, Monica Dhakar, Lakshman Arcot Jayagopal, Zubeda Sheikh, Olga Taraschenko, Sarah Schmitt, Hiba Haider, Jennifer Kim, Christa Swisher, Nicolas Gaspard, Mackenzie Cervenka, Jong Woo Lee, Andres rodriguez, Mohammad Tabaeizadeh, emily gilmore, Kristy Nordstrom, Jiyeoun Yoo, Manisha Holmes, Susan Herman, Jennifer Williams, Jay Pathmanathan, Fabio Nascimento, Ziwei Fan, Samaneh Nasiri, Mouhsin Shafi, Sydney Cash, Daniel Hoch, Andrew Cole, Zhen Lin, Chaoqi Yang, Manohar Ghanta, Aditya Gupta, Valdery Moura Junior, Eric Rosenthal, Sahar Zafar, M Brandon Westover, Jimeng Sun

"Interrater Reliability of Expert Electroencephalographers Identifying Seizures and Rhythmic and Periodic Patterns in EEGs" and "Development of Expert-Level Classification of Seizures and Rhythmic and Periodic Patterns During EEG Interpretation"

seizures rhythmic and periodic patterns artificial intelligence icu eeg

Published: May 5, 2023. Version: 1.1

Database Credentialed Access

The Brain Imaging and Neurophysiology Database (BIND)

Charlotte Maschke, Peter Hadar, Yicheng Zhang, Jian Li, Gauri Ganjoo, Andrew Hoopes, Alessandro Guazzo, Aditya Gupta, Manohar Ghanta, Bruce Nearing, Christine Tsien Silvers, Bharath Gunapati, Robert Thomas, Jennifer Kim, Shibani Mukerji, Adrian Dalca, Sahar Zafar, Alice Lam, Emmanuel Mignot, M Brandon Westover

BIND Database 1: Neuroimaging Data (MRI, CT, PET, SPECT) that can be paired with EEG and PSG (found in the Harvard EEG Database https://bdsp.io/content/harvard-eeg-db/4.1/). LLMs helped categorize pathology.

ct mri brain imaging

Published: Sept. 9, 2025. Version: 1.0

Database Restricted Access

Continuous EEG Predicts Delayed Cerebral Ischemia After SAH

M Brandon Westover

Data and code to reproduce results in "Continuous Electroencephalography Predicts Delayed Cerebral Ischemia after Subarachnoid Hemorrhage: A Prospective Study of Diagnostic Accuracy"

subarachnoid hemorrhage continuous eeg

Published: Feb. 20, 2025. Version: 1.0

Database Credentialed Access

Automated estimation of frequency and spatial extent of periodic and rhythmic epileptiform activity from continuous electroencephalography data

Alexandra Tautan, Jin Jing, Lara Basovic, Peter Hadar, Marta Fernandes, Jennifer Kim, Aaron Struck, M Brandon Westover, Sahar Zafar

Code and dataset used for the development of algorithms that automatically detect the frequency and spatial extent of epileptiform activity, specifically for LPD, GPD, LRDA, GRDA.

Published: Jan. 10, 2026. Version: 1.0.0

Database Restricted Access

I-CARE: International Cardiac Arrest REsearch consortium Electroencephalography Database

Edilberto Amorim, Wei-Long Zheng, Mohammad Ghassemi, Mahsa Aghaeeaval, Pravinkumar Kandhare, Vishnu Karukonda, Jong Woo Lee, Susan Herman, adithya sivaraju, Nicolas Gaspard, Jeannette Hofmeijer, Michel JAM van Putten, Reza Sameni, Matthew Reyna, Gari Clifford, M Brandon Westover

Multicenter clinical and EEG Database including patients who were comatose after cardiac arrest. This database includes 1,020 patients and more than 50,000 hours of continuous EEG from 7 hospitals in the U.S. and Europe.

Published: Oct. 11, 2023. Version: 1.0

Database Credentialed Access

Neurophysiologic Encephalopathy Severity Index (NESI) - Data and Code

Arka Roy, Katelyn Surrao, ChenXi Sun, Jin Jing, Tianyu Zhang, Aditya Gupta, Ryan A. Tesh, Imad Akbar, Kaileigh Gallagher, Marjan Sarami, Rajib Kanti Dey, Aysenur Yaramis, Alihan Yaramis, Zeeshan Haider, Utsav Patel, Laraib Jumani, Grace Bayas, Haoqi Sun, Wolfgang Ganglberger, Erika L. Juarez Martinez, Fábio A. Nascimento, Irfan S. Sheikh, Oluwaseun Akeju, Miles Berger, Eyal Y. Kimchi, Sahar F. Zafar, Christine A. Eckhardt, M Brandon Westover

A continuous, EEG-based index of encephalopathy severity (NESI) that maps RASS, GCS, CAM-S, and ICANS onto one physiological axis. Includes 10-minute EEG segments, MORGOTH features, trained models, derived tables, and the full analysis code.

Published: June 14, 2026. Version: 1.0.0

Database Credentialed Access

MORGOTH 1.0: A Foundation Model for Clinical EEG - Data and Code

Chenxi Sun, Ioannis Karakis, Aline Herlopian, Marcus Ng, Gamaleldin Osman, Zubeda Sheikh, Olga Taraschenko, Jiyeoun Yoo, Brian Appavu, Lakshman Arcot Jayagopal, Peter Kaplan, Jong Woo Lee, Olga Selioutski, Hiba Haider, Jonathan Halford, Daniel Hoch, Alice Lam, Fabio Nascimento, Jay Pathmanathan, Sarah Schmitt, Pia De Stefano, Urs Fisch, jeroen gijs, Humberto Castro-Lima, Wan-Yee Kong, Mackenzie Cervenka, Monica Dhakar, Safoora Fatima, Nicolas Gaspard, emily gilmore, Susan Herman, Manisha Holmes, Emily Johnson, Carlos F. Muniz, Eric Rosenthal, Andres rodriguez, rani sarkis, Mouhsin Shafi, Christa Swisher, Mohammad Tabaeizadeh, Selim Benbadis, Fonda Chan, Catherine Chu, Marjan Dolatshahi, Adam Greenblatt, Roohi Katyal, Chinasa Nwankwo, Edilberto Amorim, William O. Tatum, Dan Weber, Tobias Loddenkemper, Jurriaan Peters, Umakanth Katwa, Kiran Maski, Robert Thomas, Shenda Hong, Doyle Yuan, Sydney Cash, Andrew Cole, Daniel Goldenholz, Charlotte Stow, Jennifer Kim, Sahar Zafar, Aaron F Struck, M Brandon Westover, Jin Jing

MORGOTH, a unified EEG foundation model achieving expert-level interpretation across routine outpatient, EMU, ICU, and sleep-lab settings. Trained on 18,677 patients across 4 hospitals; externally validated on 1,573 patients across 48 sites.

Published: June 2, 2026. Version: 1.0.0

Database Credentialed Access

Evaluating crowdsourcing for ICU EEG annotation: A comparison with expert performance — Data and Code

Wan-Yee Kong, Fabio Nascimento, Aaron F Struck, Erik Duhaime, Srishti Kapur, Edilberto Amorim, Gregory Kapinos, Andres rodriguez, Brendan Thomas, Masoom Desai, Jong Woo Lee, M Brandon Westover, Jin Jing

Data and code from Kong et al. (Epilepsia 2025): 1,542 expert and non-expert participants annotated 478,834 EEG epochs for seizures and rhythmic/periodic patterns; mixed-effects analyses compare crowd vs expert accuracy.

Published: May 17, 2026. Version: 1.0.0