TMS–EEG: stimulate and record in one system
Combine transcranial magnetic stimulation with high-density EEG to study the brain’s response to each pulse. Gaze Intelligence helps you define, install and get started with a Magstim × EGI configuration.
Why combine TMS and EEG?
TMS stimulates a region of the cortex; EEG records the resulting electrical activity with millisecond resolution. Together they make it possible to study TMS-evoked potentials (TEPs), cortical excitability and the spread of activity between regions, including outside the motor cortex, where no muscle response can be measured.
High-density EEG provides broad scalp coverage, which helps describe the spatial distribution of these responses.
The integrated Magstim × EGI solution
The EGI GES 500 and Magstim TMS systems bring together high-density EEG acquisition and magnetic stimulation, with a shared interface in Net Station 6.
- Unified control: EEG recording and TMS stimulation are controlled from the same interface.
- Pulses marked in the EEG: communication between the systems links EEG events to pulse triggering, ready for analysis.
- Better-controlled artefacts: the integration is designed to limit stimulation artefacts and shorten the signal recovery time after the pulse.
What to plan for
- Stimulator and coil: single, paired or repetitive pulses, active and sham coils depending on the protocol.
- EEG net: channel count, size and sensor type suited to your participants and to the presence of the coil.
- Synchronisation: trigger exchange and pulse marking in the recording.
- Artefacts: the stimulation artefact, and muscle and auditory responses that must be separated from the cortical response.
- Versions: models, options and software versions that are compatible with one another.
We check these points with you and with the manufacturer before making any proposal.
Already have an EGI EEG or a Magstim TMS?
Send us the references of your amplifier, nets and stimulator. We work with the manufacturer to establish what is needed to complete your installation.
Our support
Advice on the configuration, installation, training for your team and technical support: one point of contact for both EEG and TMS. We demonstrated this configuration at FENS 2026 in Barcelona.
Our distribution territories
Integrated multimodal solutions: projects worldwide, following Gaze Intelligence’s configuration review and approval.
Further reading
Frequently asked questions
What do you measure by combining TMS and EEG?
EEG records the electrical response of the cortex to each pulse: these are TMS-evoked potentials. This makes it possible to study cortical excitability and the spread of activity, including outside the motor cortex.
How is the stimulation artefact handled?
The integration between the GES 500 and Magstim stimulators is designed to limit artefacts and shorten the signal recovery time after the pulse. Pulses are marked in the recording, ready for analysis.
Can I complete an EGI EEG or a Magstim TMS I already own?
Send us the references of your amplifier, nets and stimulator: we work with the manufacturer to establish what is needed to complete your installation.
In which countries do you offer this solution?
Integrated multimodal solutions can be offered worldwide, after Gaze Intelligence has reviewed and validated the configuration.