g.LADYbird Active & Passive EEG Electrodes

The g.LADYbird active EEG electrode has a high-quality amplifier inside the electrode in order to record the best EEG possible. The electrode picks up much less noise than other electrodes and can be mounted very quickly. Thousands of recordings have shown that the g.LADYbird outperforms other systems. You don’t want to lose any second of data just because you didn’t use the best EEG equipment- especially if you work with patients.

If we look back to all the BCI experiments done with passive electrodes compared to experiments done with g.LADYbird active electrodes, than we get about 10% better accuracy. g.LADYbird active EEG electrodes were designed to make physiological setups for EEG/ECG/EMG/EOG recording fast and easy, while still using a comfortable EEG cap that provides very high signal quality.

The g.LADYbird active electrode is designed to work with all g.HIamps and g.USBamps. It is connected via the g.GAMMAbox to the g.USBamp and via the electrode connector boxes to the g.HIamp.

For TMS recordings, we offer a g.LADYbird passive version that does not have electronic components inside the electrode itself. This reduces the TMS stimulation artifact in the EEG recording and allows to have a clean recording within a few ms after the TMS pulse.

Both use sintered Ag/AgCl electrode material for perfect EEG data resolution from 0 to 10 kHz.

PRODUCT HIGHLIGHTS

Record the best possible EEG, EMG, ECG, EOG

Do not lose a second of data due to inappropriate equipment

Avoid or reduce artefacts from movements and electromagnetic interference

Fastest electrode montage for multi-channel recordings

No abrasive skin treatment required, just inject a drop of gel

Electrodes remain in the cap, which allows fast montage and cleaning

Single electrodes can be replaced easily

0 - 10 kHz frequency response

Perfect for slow wave recordings

Simultaneous impedance check of all channels with g.HIamp

TECHNICAL SPECIFICATIONS

Amplification	Inside the electrode
Sockets	2-pin safety
Cable	1.5 kV isolation

g.LADYBIRD ACTIVE EEG ELECTRODES

g.LADYbird are active EEG electrodes with a bigger reservoir for longer recordings with up to 64 channels. The electrode is inserted directly into the g.GAMMAcap and remains plugged in to minimize mistakes and to speed up electrode mounting. The g.LADYbird electrodes can also be assembled on the body with adhesive washers for EMG, ECG or EOG recordings.

The g.GAMMAcap can be configured with electrodes for a certain experiment (such as the P300 speller), and the electrodes remain inside the cap even during cleaning. This makes preparation and cleaning very fast, which speeds up experiments considerably. A typical setup time for a P300 speller experiment (10 electrodes) is about 2 minutes – just put on the cap and inject the gel. After the cap is removed, the gel almost disappears after some time, and gel is removed completely by washing the hair.

g.LADYBIRD PASSIVE EEG ELECTRODES

g.LADYbird passive EEG electrodes have a sintered Ag/AgCL electrode inside and are perfectly suited for EEG recordings in combination with TMS. The electrode does not have any electronic inside to reduce the TMS artifact in the EEG data. This is important for short-lasting EP recordings with TMS and ensures that the EEG signal comes back to normal within a few ms.

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PRODUCT HIGHLIGHTS

Perfectly suited for TMS experiments

Sintered Ag/AgCl material for slow wave recordings

Electrodes stay within the cap for faster cleaning and assembling

Very light to reduce artifacts

TECHNICAL SPECIFICATIONS

Ag/AgCl electrode

1.5 kV isolation

1.5 mm safety connector

HOW TO PERFORM TMS EXPERIMENTS WITH GTEC'S EEG ELECTRODES

g.LADYBIRD passive EEG electrodes feature a sintered Ag/AgCL electrode designed specifically for EEG recordings combined with TMS. These electrodes lack internal electronics, minimizing TMS artifact interference in EEG data. This feature is crucial for short-lasting EP recordings with TMS, ensuring rapid restoration of the EEG signal to normal levels within milliseconds. Ideal for TMS experiments, these electrodes offer a seamless integration for your research needs.

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g.GAMMACAP FOR g.LADYBIRD ELECTRODES

g.GAMMAcap is designed for maximum comfort with minimal mounting time. The fabric used for this g.GAMMAcap is very flexible, but robust. 74 labeled standard positions (based on the extended 10-20 system / 10-10 system) and 86 additional intermediate positions are precut for easy placement. This makes it easy to configure caps for certain experiments (e.g. P300 speller, SSVEP robot control, high-density brain mapping, etc.).

g.GAMMAcap uses active or passive g.LADYbird electrodes and active g.SCARABEO electrodes. The g.GAMMAcap can also be used with the active hybrid electrode system g.SAHARA hybrid, which can be used without or with gel. All types of active and passive electrodes can be changed or replaced if necessary. The caps can be used with a chest belt strap or with chin straps, which are supplied with each cap.

g.GAMMACAP WITH fNIRS SENSORS

g.GAMMAcap fNIRS allows to record with g.SCARABEO, g.LADYbird or g.SAHARA hybrid electrodes and g.SENSOR fNIRS. g.SENSOR fNIRS can be attached with a magnet to the cap and the optodes can be inserted into pre-defined positions over the sensorimotor-cortex and/or frontal cortex.

g.GAMMACAP FOR KIDS

Mini	Head circumference 32 - 36 cm
Midi	Head circumference 37 - 43 cm
Maxi	Head circumference 44 - 48 cm

g.GAMMACAP (+fNIRS) FOR ADULTS

Small	Head circumference 50 - 54 cm
Medium	Head circumference 54 - 58 cm (fits 95% of adult subjects)
Large	Head circumference 58 - 62 cm

g.GAMMABOX FOR BIOSIGNAL AMPLIFIERS

g.GAMMAbox is an EEG Electrode Connector Box that connects the fully equipped EEG cap with g.tec’s biosignal amplifiers such as g.USBamp or g.HIamp biosignal amplifier. If it is used with g.GAMMAclip ECG, EMG and EOG recordings are possible with active electrode technology. It is designed to make experimental setups for EEG/ECG/EMG/EOG recording fast and easy, and of highest quality.