SCARABEO

ACTIVE EEG/EMG/EOG ELECTRODES

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g.SCARABEO electrodes are active EEG electrodes to record the best EEG possible. The small amplifier inside the electrode makes a huge difference in data quality and usability compared to passive electrodes. As a result, you will see much less artifacts in your EEG data. Also, no abrasion of the skin is required, the electrodes can be mounted quickly and the BCI performance is much higher. These facts have been proven over thousands of recordings. You never want to lose a second of EEG data by just using the wrong equipment.

g.SCARABEO electrodes have a small form factor to support high-density recordings. The electrode is inserted into a holder ring of the g.GAMMAcap EEG cap and can be easily removed and plugged into other positions to equip a cap for a certain experiment. Typically, the electrodes remain plugged in to minimize mistakes and to speed up electrode mounting. The g.SCARABEO electrodes with the holder rings can also be assembled on the body with adhesive washers for EMG, ECG or EOG recordings.

PRODUCT HIGHLIGHTS

Record the best possible EEG
Compact active electrode for high-density EEG and multi-purpose applications
Fully compatible with g.GAMMAsys and g.HIamp’s active headbox
Touchproof sintered Ag/AgCl-ring electrode in a durable molded housing
Super-fast and reliable setup: fill-and-ready
Usable with g.GAMMAcap or with adhesive washers
Simultaneous impedance check of all channels with g.HIamp

TECHNICAL SPECIFICATIONS

Amplification inside the electrode
1.5 kV isolation
2-pin safety connector

RECORD THE BEST EEG DATA POSSIBLE – WITHOUT LOSING DATA

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QUALITY FEATURES

  • Very light electrodes to reduce the momentum when the head is moved and therefore to avoid artifact
  • No unnecessary plastic components that increase weight and artifacts
  • The combination of the electrode and cap is as light as possible to avoid artifacts
  • No polarization or saturation effects
  • Small, highly precise amplifier integrated in EEG electrode

HIGH DENSITY EEG RECORDINGS

g.SCARABEO EEG electrodes give a high spatial and temporal resolution for neuroscience studies. First, all EEG electrodes are assembled on the EEG cap and are connected to the g.HIamp. Then, the cap is put onto the subject’s head and the electrode are filled with gel. It takes only about 5 minutes to put on 64 channels and to record artifact free data. This is a huge usability improvement compared to other systems where you will need an hour to put on the cap. It is of course important to do this as quickly as possible so that the subject does not get exhausted before the actual experiment begins.

Another important fact is that we care about every single electrode. That’s why every single EEG electrode has an amplifier inside and a small holder ring with a reservoir below. This ensures that the g.GAMMAgel contacts a certain area of the head so that we know exactly where we are recording and it allows long-term recording without re-gelling.

Especially important is that we don’t get any bridging between electrodes, which would produce meaningless data while we are recording.

When you are recording from patients, you don’t want to lose a second of EEG data, just because you are using low quality equipment that creates more artifacts or noise than necessary. You want the best EEG equipment possible to save time, money and get the best EEG data quality.

Dr. Christoph Guger - CEO & Founder of g.tec medical engineering GmbH

EEG CAP

g.GAMMAcap is an EEG cap 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.).

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fNIRS & EEG CAP

g.GAMMAcap fNIRS is an EEG cap that allows you to mount up to 8 fNIRS optodes. 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.

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SOPHISTICATED EEG CAP DESIGN

The EEG cap can be mounted with active or passive g.LADYbird EEG electrodes, active g.SCARABEO EEG electrodes or active g.SAHARA Hybrid EEG electrodes.

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. You can configure the cap with an electrode montage 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 EEG gel almost disappears after some time, and gel is removed completely by washing the hair. 

EEG CAP FOR KIDS

MiniHead circumference 32 - 36 cm
MidiHead circumference 37 - 43 cm
MaxiHead circumference 44 - 48 cm

EEG (+fNIRS) CAP FOR ADULTS

SmallHead circumference 50 - 54 cm
MediumHead circumference 54 - 58 cm (fits 95% of adult subjects)
LargeHead circumference 58 - 62 cm

g.GAMMABOX FOR g.USBAMP BIOSIGNAL AMPLIFIER

g.GAMMAbox is an EEG Electrode Connector Box that connects the fully equipped EEG cap and EEG electrodes with g.tec’s g.USBamp 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.

 

 

PRODUCT HIGHLIGHTS

Avoid or reduce artifacts from movements and electromagnetic interference
Fastest electrode montage for multi-channel recordings
No abrasive skin treatment required; just inject a drop of gel
Single electrodes can be replaced easily
All cables have the necessary 1.5 kV isolation

TECHNICAL SPECIFICATIONS

Channels16
FilterDC - 10 kHz
Battery supply9V
Sockets2-pin safety

g.GAMMACLIP ACTIVE ELECTRODES

The g.GAMMAclip contains an amplifier inside and allows you to attach disposable EMG/ECG electrodes for high quality recordings. The active electrode system greatly reduces noise produced by movements and interference with other devices, and thereby provides very high-quality data, even in challenging usage situations. Especially in hospital environments the system delivers very clean data. You will never use a passive electrode system again!

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