Gregory Alan Worrell, MD, PhD

  • 6335 Citations
  • 44 Scopus h-Index
1984 …2020
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Research Output 1984 2019

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Conference contribution
2019

A Computationally Efficient Model for Predicting Successful Memory Encoding Using Machine-Learning-based EEG Channel Selection

Saboo, K. V., Varatharajah, Y., Berry, B. M., Sperling, M. R., Gorniak, R., Davis, K. A., Jobst, B. C., Gross, R. E., Lega, B., Sheth, S. A., Kahana, M. J., Kucewicz, M. T., Worrell, G. A. & Iyer, R. K., May 16 2019, 9th International IEEE EMBS Conference on Neural Engineering, NER 2019. IEEE Computer Society, p. 323-327 5 p. 8717057. (International IEEE/EMBS Conference on Neural Engineering, NER; vol. 2019-March).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electroencephalography
Learning systems
Data storage equipment
Electrodes
Set theory
2018
1 Citation (Scopus)

Creating neural 'co-processors' to explore treatments for neurological disorders

Stanslaski, S., Herron, J., Fehrmann, E., Corey, R., Orser, H., Opri, E., Kremen, V., Brinkmann, B., Gunduz, A., Foote, K., Worrell, G. A. & Denison, T., Mar 8 2018, 2018 IEEE International Solid-State Circuits Conference, ISSCC 2018. Institute of Electrical and Electronics Engineers Inc., Vol. 61. p. 460-462 3 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Neurology
Energy transfer
Brain
Networks (circuits)
Coprocessor
1 Citation (Scopus)

Live demonstration: Continuous active probing and modulation of neural networks with a wireless implantable system

Kremen, V., Brinkmann, B., Kim, I., Chang, S-Y., Van Gompel, J., Herron, J. A., Baldassano, S., Patterson, E. E., Litt, B., Denison, T. & Worrell, G. A., Mar 23 2018, 2017 IEEE Biomedical Circuits and Systems Conference, BioCAS 2017 - Proceedings. Institute of Electrical and Electronics Engineers Inc., Vol. 2018-January. 1 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

seizures
Brain
epilepsy
Demonstrations
Modulation
2017
2 Citations (Scopus)

Inter-ictal Seizure Onset Zone localization using unsupervised clustering and Bayesian Filtering

Varatharajah, Y., Berry, B. M., Kalbarczyk, Z. T., Brinkmann, B., Worrell, G. A. & Iyer, R. K., Aug 10 2017, 8th International IEEE EMBS Conference on Neural Engineering, NER 2017. IEEE Computer Society, p. 533-539 7 p. 8008407

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Brain
Biomarkers
Electroencephalography
Tissue
Experiments
2016

Feasibility of tracked electrodes for use in epilepsy surgery

Holmes III, D. R., Brinkmann, B., Hanson, D., Worrell, G. A., Robb, R. & Holton, L., 2016, Medical Imaging 2016: Image-Guided Procedures, Robotic Interventions, and Modeling. SPIE, Vol. 9786. 97862M

Research output: Chapter in Book/Report/Conference proceedingConference contribution

epilepsy
surgery
Surgery
Epilepsy
Electrodes

Identifying epileptic source location and extent: An iterative sparse electromagnetic source imaging algorithm

Sohrabpour, A., Lu, Y., Worrell, G. A. & He, B., Oct 13 2016, 2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2016. Institute of Electrical and Electronics Engineers Inc., Vol. 2016-October. p. 109-112 4 p. 7590652

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electromagnetic Phenomena
Electroencephalography
Imaging techniques
Partial Epilepsy
Validation Studies
2015
3 Citations (Scopus)

Connectivity of epileptic brain regions in wake and sleep

Klimes, P., Duque, J. J., Jurak, P., Halamek, J. & Worrell, G. A., Nov 4 2015, Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS. Institute of Electrical and Electronics Engineers Inc., Vol. 2015-November. p. 2191-2194 4 p. 7318825

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Brain
Sleep
Seizures
Tissue
Frequency bands
3 Citations (Scopus)

Reliable seizure prediction from EEG data

Cherkassky, V., Veber, B., Lee, J., Shiao, H. T., Patterson, N., Worrell, G. A. & Brinkmann, B., Sep 28 2015, Proceedings of the International Joint Conference on Neural Networks. Institute of Electrical and Electronics Engineers Inc., Vol. 2015-September. 7280327

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electroencephalography
Brain
2014
3 Citations (Scopus)

Using functional MRI alone for localization in focal epilepsy

Zhang, C. H., Lu, Y., Brinkmann, B., Welker, K., Worrell, G. A. & He, B., Nov 2 2014, 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014. Institute of Electrical and Electronics Engineers Inc., p. 730-733 4 p. 6943694

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Partial Epilepsy
Magnetic Resonance Imaging
Epilepsy
Healthy Volunteers
Independent component analysis
2013
24 Citations (Scopus)

A multimodal platform for cloud-based collaborative research

Wagenaar, J. B., Brinkmann, B., Ives, Z., Worrell, G. A. & Litt, B., 2013, International IEEE/EMBS Conference on Neural Engineering, NER. p. 1386-1389 4 p. 6696201

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electroencephalography
Data integration
Animals
Imaging techniques

EEG source imaging and connectivity analysis in epilepsy patients

Lu, Y., Worrell, G. A., Zhang, H. C., Sohrabpour, A. & He, B., 2013, Conference Record - Asilomar Conference on Signals, Systems and Computers. IEEE Computer Society, p. 795-797 3 p. 6810395

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electroencephalography
Imaging techniques
Brain
Computer simulation
Transfer functions
2012
1 Citation (Scopus)

Dynamic seizure imaging in patients with extratemporal lobe epilepsy

Lu, Y., Yang, L., Worrell, G. A., Brinkmann, B., Nelson, C. & He, B., 2012, Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS. p. 6228-6231 4 p. 6347417

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Epilepsy
Seizures
Electroencephalography
Imaging techniques
Surgery

Multivariate principal oscillation pattern analysis of ICA sources during seizure

Mullen, T., Worrell, G. A. & Makeig, S., 2012, Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS. p. 2921-2924 4 p. 6346575

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Independent component analysis
Electroencephalography
Surgery
Seizures
Damping
2011

Dynamic imaging of ictal rhythmic activity using dense-array EEG

Yang, L., Wilke, C., Brinkmann, B., Worrell, G. A. & He, B., 2011, Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS. p. 8271-8274 4 p. 6092039

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electroencephalography
Seizures
Stroke
Imaging techniques
Physiologic Monitoring

Electrocortical source imaging of intracranial EEG data in epilepsy

Acar, Z. A., Palmer, J., Worrell, G. A. & Makeig, S., 2011, Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS. p. 3909-3912 4 p. 6090971

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electroencephalography
Epilepsy
Stroke
Independent component analysis
Imaging techniques

Modeling cortical source dynamics and interactions during seizure

Mullen, T., Acar, Z. A., Worrell, G. A. & Makeig, S., 2011, Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS. p. 1411-1414 4 p. 6090332

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Epilepsy
Seizures
Implanted Electrodes
Independent component analysis
Electroencephalography
2009
9 Citations (Scopus)

Analysis of epileptogenic network properties during ictal activity

Wilke, C., Worrell, G. A. & He, B., 2009, Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009. p. 2220-2223 4 p. 5334866

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Graph theory
Electric network analysis
Stroke
Monitoring
Seizures
6 Citations (Scopus)

Metadata and annotations for multi-scale electrophysiological data

Bower, M. R., Stead, S. M., Brinkmann, B., Dufendach, K. & Worrell, G. A., 2009, Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009. p. 2811-2814 4 p. 5333570

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Metadata
Information Storage and Retrieval
Communication
Information technology
Data structures
13 Citations (Scopus)

Multiscale electrophysiology format: An open-source electrophysiology format using data compression, encryption, and cyclic redundancy check

Brinkmann, B., Bower, M. R., Stengel, K. A., Worrell, G. A. & Stead, S. M., 2009, Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009. p. 7083-7086 4 p. 5332915

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Data Compression
Electrophysiology
Computer Security
Data compression
Cryptography
8 Citations (Scopus)

Patch-basis electrocortical source imaging in epilepsy

Acar, Z. A., Worrell, G. A. & Makeig, S., 2009, Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009. p. 2930-2933 4 p. 5333992

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Epilepsy
Insulator Elements
Imaging techniques
Electromagnetic Phenomena
Structural Models
4 Citations (Scopus)

Reference signal impact on EEG energy

Hu, S., Stead, S. M., Liang, H. & Worrell, G. A., 2009, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). PART 3 ed. Vol. 5553 LNCS. p. 605-611 7 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 5553 LNCS, no. PART 3).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electroencephalography
Energy
Decrease

The relationship between conductivity uncertainties and EEG source localization accuracy

Wang, G., Yang, L., Worrell, G. A. & He, B., 2009, Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009. p. 4799-4802 4 p. 5332637

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electroencephalography
Uncertainty
Brain
Skull
Epilepsy
2008
10 Citations (Scopus)

Head modeling and cortical source localization in epilepsy

Acar, Z. A., Makeig, S. & Worrell, G. A., 2008, Proceedings of the 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'08 - "Personalized Healthcare through Technology". p. 3763-3766 4 p. 4650027

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Independent component analysis
Boundary element method
Electroencephalography
Epilepsy
Brain
4 Citations (Scopus)

Recurrence based deterministic trends in EEG records of epilepsy patients

Zhang, W., Worrell, G. A. & He, B., 2008, 5th Int. Conference on Information Technology and Applications in Biomedicine, ITAB 2008 in conjunction with 2nd Int. Symposium and Summer School on Biomedical and Health Engineering, IS3BHE 2008. p. 391-394 4 p. 4570657

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electroencephalography
Epilepsy
Recurrence
Seizures
Brain
5 Citations (Scopus)

Removal of scalp reference signal and line noise for intracranial EEGs

Hu, S., Stead, S. M. & Worrell, G. A., 2008, Proceedings of 2008 IEEE International Conference on Networking, Sensing and Control, ICNSC. p. 1486-1491 6 p. 4525455

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electroencephalography
Electrodes
Notch filters
Independent component analysis
Surgery
2007
4 Citations (Scopus)

The effect of recording reference on EEG: Phase synchrony and coherence

Hu, S., Stead, S. M., Gardner, A. B. & Worrell, G. A., 2007, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). PART 2 ed. Vol. 4492 LNCS. p. 1273-1280 8 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 4492 LNCS, no. PART 2).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electroencephalography Phase Synchronization
Electroencephalography
Synchrony
Metric
Electroencephalogram
2006
5 Citations (Scopus)

Spatio-temporal source localization and granger causality in ictal source analysis

Ding, L., Worrell, G. A., Lagerlund, T. D. & He, B., 2006, Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. p. 3670-3671 2 p. 4030489

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Magnetic resonance imaging
Electroencephalography
2005
15 Citations (Scopus)

Automatic detection of high frequency epileptiform oscillations from intracranial EEG recordings of patients with neocortical epilepsy

Smart, O. L., Worrell, G. A., Vachtsevanos, G. J. & Litt, B., 2005, 2005 IEEE Region 5 and IEEE Denver Section Technical, Professional and Student Development Workshop. Vol. 2005. p. 53-58 6 p. 1614347

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electroencephalography
Brain
Fuzzy clustering
2002
1 Citation (Scopus)

Self-organized criticality in the epileptic brain

Cranstoun, S. D., Worrell, G. A., Echauz, J. & Litt, B., 2002, Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 1. p. 232-233 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Volcanoes
Neurons
Brain
Earthquakes
Dynamical systems