Revolutionizing EEG-TMS Experiments: The New 64 g.LADYbird TMS Electrodes Deliver Unmatched Performance

At g.tec, we’re always pushing the boundaries of neurotechnology, and our latest EEG-TMS experiment demonstrates the cutting-edge performance of our new g.LADYbird TMS electrode. Designed specifically for combined EEG and TMS recordings, this electrode is a game-changer in both usability and signal quality.

Why the g.LADYbird TMS Electrode Stands Out

1. Slimmest Design on the Market
   With a height of just 3 mm, the g.LADYbird TMS electrode offers unparalleled comfort and compatibility, even in demanding setups. The electrode material is significantly smaller than that of a C-shaped TMS electrode, which helps minimize artifacts.
2. Active Technology
   Each electrode features a built-in amplifier, enabling fast and easy setup. While traditional passive electrodes require extensive scalp preparation and low impedance values, the g.LADYbird TMS electrodes tolerate higher impedance ranges, drastically simplifying the process.
   • Setup Time: Assembling 64 EEG channels takes approximately 8 minutes, compared to significantly longer times with passive electrodes.
   • Impedance Management: During our experiment, all electrodes were in the green and yellow ranges (<100 kOhm), ensuring optimal recording conditions without the need for lengthy abrasion procedures.

The Experiment Setup

For this experiment, we used:

• g.Recorder Biosignal Recording Software: For real-time data acquisition of all 64 EEG channels.
• g.HIamp Multi-Channel Biosignal Amplifier: Capturing EEG data and trigger signals with millisecond precision.
• 64 Channel Active Electrode Connector Box TMS: Featuring specialized filters to remove most TMS artifacts before digitization.

Methodology

The TMS coil was positioned over the left sensorimotor cortex, and 100 magnetic pulses at 65% intensity were delivered. Each pulse was synchronized with the EEG system using a trigger signal from the TMS machine.

Data Quality and Results

The EEG recordings were exceptionally clean and robust, showcasing the power of the g.LADYbird TMS electrodes.

Real-time visualizations in g.Recorder allowed for immediate quality checks, while post-processing in g.BSanalyze with the TMS toolbox enabled complete artifact removal.

The topographic distribution of the TMS-evoked potentials (TMS-EPs) was then plotted, revealing clear and accurate brain activity patterns with high signal fidelity.

Conclusion

The g.LADYbird TMS electrode makes EEG-TMS experiments more efficient, reliable, and accessible than ever. Its active design ensures faster setup, excellent signal quality, and seamless integration with advanced neurotechnology tools like g.Recorder and g.BSanalyze.

If you’re conducting TMS-EEG experiments, the g.LADYbird TMS electrode is a must-have for high-quality results.

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