MAGSTIM EGI
Introducing the Geodesic EEG System 500
GES 500
EGI is proud to unveil the GES 500 HD-EEG system—a transformative new platform designed to advance brain research, precision stimulation, and advanced clinical research by improving ease of use and EEG signal quality.
The launch of the GES 500 marks more than a product release—it’s a step into the future of neuroscience. With clearer signals, seamless integrations, and a forward-looking architecture, researchers now have the power to explore the brain in ways that were once unimaginable.
The GES 500 is a platform that integrates with more commercial and open-source tools than ever before. Its future-ready architecture supports artificial intelligence (AI), and machine learning (ML) integrations for minimal latency closed loop applications, creating new opportunities for breakthroughs in neuroscience and non-invasive brain stimulation.
The Geodesic Sensor Net
The reliable EGI sensor nets provide whole head and evenly distributed coverage allowing users to:
• Capture activity from the entire brain, including the anterior, basal, and medial regions
• Fast and easy application, ideal even with challenging populations
• Sizes for infants, pediatrics, and adults available
• Nets compatible for fMRI, TMS, MEG, TES, and extended recordings available
• Options for saline and gel-applied electrodes available
Unlock New Possibilities
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More options to explore network brain dynamics and discover biomarkers: users can seamlessly analyze data in a range of commercial (Net Station Tools, BESA, Persyst), open source (EEGLAB, Fieldtrip, Brainstorm, MNE, HAPPE, MADE, TESA) tools or engage companies like Selway Data, Lucerum or Mindig that offer cloud-based analysis services and support for multi-site studies and clinical trials.
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A future-focused ecosystem with on-device advanced AI, machine learning hardware to allow low-latency EEG feature extraction for closed loop applications including phase locked stimulation, brain computer interfaces and advanced neurofeedback.
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Designed for rapid application, comfortable Geodesic Sensor Nets – 32, 64, 128 and 256 saline or gel Ag/AgCl sensors for high quality, high resolution recordings of brain activity across the lifespan to define biomarkers of brain function and disfunction and inform therapies.
Publications
This library is a compilation of all peer-reviewed scientific research publications produced by customers of Magstim EGI, formerly known as Electrical Geodesics, Inc. (EGI).Follow us for quarterly updates by creating a free Zotero account and clicking the red “Join Group” box below. Every quarter you’ll automatically receive the latest peer-reviewed publications by your peers and colleagues using Magstim EGI products.Don’t see your publication listed? Please contact us and we’ll happily include it. PDF files of the full papers are not available through this bibliography due to copyright restrictions.
Geodesic Transcranial Electrical Neuromodulation 200 (GTEN 200)*
Record HD EEG and deliver current simultaneously using the same Geodesic Sensor Net
A single integrated platform featuring:
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Options for 32, 64, 128, or 256 channel sensor nets allowing any electrode to serve as anodes, cathodes or recording electrodes
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Up to 2 mA current intensity for custom HD tDCS, tACS, tPCS, and tRNS protocols
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Individualized head modeling and a library of age-matched atlases
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Source localization tools (LORETA, sLORETA, LAURA)
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Software Developer’s Kit (SDK) included complimentary
GTEN 2OO Neuromodulation Research System
Robust planning tools to optimize for each individual
Create an MR-based individualized head model or select an age-matched atlas
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Account for intersubject differences from the start
Design your custom stimulation protocols in one of three ways:
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Manually select electrodes and current level
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Choose a region of interest within the brain to target
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Use EEG-based source localization to guide the stimulation paradigm
Localize with confidence
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High density, whole head electrode coverage and finite difference method head models allow for highly accurate source localization
Apply the reciprocity theorem to align stimulation with physiology
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A cortical source’s scalp voltage projection is the same as the scalp stimulation required to stimulate/modulate that cortical source 1
Maximize flexibility with a larger array of montages
Localize targeting by selecting, combining custom stimulation arrays
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Up to 256 channels of EEG, of which 190 channels can be used for stimulation, with spatial selectivity to stimulate multiple anodal/cathodal pairs at a given time (minimum of 10 pairs needed to achieve maximum current)
Achieve greater focality with smaller stimulation sensors
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1cm2 enables 0.2mA/cm2 current density in patch electrodes
Measure the targets and effects with HD EEG
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Use EEG-based source localization to guide the stimulation paradigm and seamlessly record EEG while stimulating
Close the loop and change protocols in real-time driven by physiology
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Use the Software Developers’ Kit (SDK) and other open-source platforms to develop and perform closed-loop neuromodulation