g.GAMMAsys: Specs & Features

High signal quality, low interference and fast montage!

g.GAMMAsys was designed to make experimental setups for EEG/ECG/EMG/EOG recording fast and easy, while still using a comfortable cap that provides very high signal quality.

g.GAMMAsys is designed to work with all g.tec amplifiers. It includes different types of active and passive electrodes that can be mounted with the g.GAMMAcap onto the head for EEG recordings, or can be mounted on the body for ECG/EMG/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 allows a very fast preparation and cleaning procedure, 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. 

New: g.GAMMAcap, the second generation: new optimized cut for perfect fit, new highly flexible super-narrow seams for high-density electrode placement, 74 labeled standard positions (10-10/extended 10-20 system) plus 86 additional intermediate positions, can now be used either with a chest belt set or with a chin strap that comes with each cap.

Size M fits most adult subjects, but a cap set includes sizes S, M and L.

New: g.GAMMAcapKIDS: new electrode cap for kids, 74 labeled standard positions (10-10/extended 10-20 system). Available in different sizes (MINI, MIDI, MAXI) and cap set.

Product Highlights

  • Avoid or reduce artifacts from movements and electromagnetic interference
  • Fastest electrode montage for multi-channel recordings
  • Flexible material, comfortable to wear; one size fits most people
  • System can be used instead of standard passive electrodes
  • No abrasive skin treatment required, just inject a drop of gel
  • Electrodes remain in the cap for cleaning, which allows fast montage and cleaning
  • Single electrodes can be replaced easily
  • 74 standard + 86 intermediate positions; user can add positions freely
  • 0 - 10 kHz (DC) or 0.1 Hz - 10 kHz (AC) bandwidth

More product information

g.GAMMAcap is designed for maximum comfort and fastest montage. 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.). The gel is inserted through the hole in the middle of the electrode. All types of active and passive electrodes can be changed or replaced if necessary. The electrodes normally stay inside the cap and are also cleaned with the cap. This reduces the time needed to mount and wash the cap. 

g.GAMMAcap is available in sizes:
 small: head circumference 50 - 54 cm 
 medium: 54 - 58 cm 
 large: 58 - 62 cm

g.GAMMAcapKIDS is available in sizes:
 mini: head circumference 32 - 36 cm 
 midi: 37 - 43 cm 
 maxi: 44 - 48 cm

Size M fits more than 95 % of adult subjects. Plain caps without labeling and cuts are also available. The caps can be used with a chest belt set or with chin straps, which are supplied with each cap.

g.GAMMAcap uses active or passive g.LADYbird electrodes and active g.SCARABEO electrodes. The active electrodes are mounted with g.GAMMAgel without abrasion. The passive electrodes are mounted with abrasive gel. Further the g.GAMMAcap can also be used with the active dry electrode system g.SAHARA, where no gel at all is necessary.

g.tec's active electrodes are equipped with a touch-proof 2-pin safety connector and are plugged into g.GAMMAbox(es). A special adapter cable connects the box to the amplifier inputs. The passive electrodes are directly connected to the biosignal amplifier. g.GAMMAbox provides inputs for up to 16 channels. g.EXTENSIONbox is used to add more channels (32, 48, 64,...). The extension box has no GND and no REF socket, as only one ground and one reference electrode is used with this system.

With g.USBamp, the active electrode system can be used with external sensors on isolated input blocks.


g.tec electrodes and NIRS

The g.SCARABEO active electrode is compatible with the Shimadzu NIRS system.
A special adapter allow you to mount the g.SCARABEO electrodes on the colored positions of the NIRS cap.


Available configurations

Electrodes and Sensors

product no.: 1111 (1027+17*1033+2*1034+2*1039+5*1021+1016a+1019a) read more g.GAMMAbundle for g.USBamp — consisting of g.GAMMAcap3SET; 17x g.LADYbird; 2x g.LADYbirdGND; 2x g.GAMMAearclip Ag/AgCl; 5x g.GAMMAgel; 1x g.GAMMAbox for 16 channels; 1x Active Electrode Driver Box Connector for g.USBamp; 3x g.GAMMAsyringe
product no.: 1114 (1027+17*1033+2*1034+2*1039+5*1021+1016a+1019b) read more g.GAMMAbundle for g.MOBIlab+ 8 channel EEG version — consisting of g.GAMMAcap3SET; 9x g.LADYbird; 2x g.LADYbirdGND; 2x g.GAMMAearclip Ag/AgCl; 5x g.GAMMAgel; 1x g.GAMMAbox for 16 channels; 1x Active Electrode Driver Box Connector for g.MOBIlab+ EEG; 3x g.GAMMAsyringe
product no.: 1111b read more g.GAMMAbundle for g.USBamp CSP — consisting of g.GAMMAcap3SET; 33x g.LADYbird; 2x g.LADYbirdGND; 2x g.GAMMAearclip Ag/AgCl; 5x g.GAMMAgel; 1x g.GAMMAbox for 16 channels; 1x g.EXTENSIONbox for g.GAMMAbox for additional 16 channels; 2x Active Electrode Driver Box Connector for g.USBamp; 3x g.GAMMAsyringe
product no.: 1116 read more g.GAMMAbundle for g.BSamp — consisting of g.GAMMAcap3SET; 17x g.LADYbird; 2x g.LADYbirdGND; 2x g.GAMMAearclip Ag/AgCl; 5x g.GAMMAgel; 1x g.GAMMAbox for 16 channels; 1x Active Electrode Driver Box Connector for touch-proof medical connectors; 3x g.GAMMAsyringegel

See some related products

Electrodes and Sensors

read more g.Electrodes: Specs & Features — various active and passive electrodes for electrophysiological recordings
product no.: 1023 (s, m, l) read more g.GAMMAcap² — electrode cap with 74 standard and 86 intermediate positions; international 10-10/extended 10-20 system
product no.: 1023 (mini, midi, maxi) read more g.GAMMAcap2KIDS — electrode cap for kids with 74 standard positions; international 10-10/extended 10-20 system
product no.: 1027 read more g.GAMMAcap²SET — set of 3 caps (size S, M, L), 74 standard and 86 intermediate positions according to the international 10-10/extended 10-20 system, additional positions can be added freely by the user, includes 1 chest belt set
product no.: 1027b read more g.GAMMAcap2SETKIDS — set of 3 caps (size mini, midi, maxi), 74 standard positions according to the international 10-10/extended 10-20 system, additional positions can be added freely by the user, includes 1 chest belt set
product no.: 4500 read more g.BALDY — bald head made of styrofoam for perfect storage of all available caps from g.tec. color: white

Hardware and Accessories

product no.: 1016c read more g.GAMMAbox for 16 channels, AC — power supply & driver/interface box for 16 active electrodes, AC coupled for usage with g.USBamp, g.BSamp and g.MOBIlab+; works with g.tec-2-pin safety connector electrodes
product no.: 1022 read more g.EXTENSIONbox for g.GAMMAbox — for additional 16 active electrodes; without ground and reference
product no.: 1019a read more Active Electrode Driver Box Connector for g.USBamp — connector cable between the g.USBamp (system connector) and the g.GAMMAbox/g.SAHARAbox; 25 cm lead
product no.: 1019b read more Active Electrode Driver Box Connector for g.MOBIlab+ EEG — connector cable between the g.MOBIlab+ 8 channel EEG version (system connector to 8 EEG channels) and the g.GAMMAbox/g.SAHARAbox; 40 cm lead
product no.: 1019c read more Active Electrode Driver Box Connector for touch-proof medical connectors — connector cable between 1.5 mm touch proof medical connectors (monopolar) and the g.GAMMAbox/g.SAHARAbox; 40 cm lead
product no.: 1019d read more Customized Active Electrode Box Connector — connector cable between a third party amplifier and the g.GAMMAbox/g.SAHARAbox; 84 cm lead, confirmation of availability on request before order
product no.: 1019e read more Active Electrode Driver Box Connector for g.MOBIlab+ MP EEG/EOG — connector cable between the g.MOBIlab+ multi-purpose version (system connector to 4 EEG/EOG channels) and the g.GAMMAbox/g.SAHARAbox for bipolar recordings; 84 cm lead
product no.: 1028 read more g.GAMMAcap²BELT — chest belt set, flexible velcro chest belt (90 - 150 cm), 2 adjustable strips for g.GAMMAcap², measuring tape, syringe
product no.: 7005 read more g.HEADbox - active — electrode interface box for 64 active channels, for usage with g.HIamp; works with g.tec 2 pin safety connector active electrodes; g.INTERfaceHEADbox2HIamp (7008); g.HEADboxPOWER (7009)
product no.: 7008 read more g.INTERfaceHEADbox2HIamp — interface cable g.HEADbox to g.HIamp with multi pole connector; approx. 165 cm lead
product no.: 7009 read more g.HEADboxPOWER — power supply cable for g.HEADbox; approx. 165 cm lead

Consumables

product no.: 1021 read more g.GAMMAgel — special electrode gel for active electrodes (can also be used for passive electrodes), in 200 g doser can; no syringe included
product no.: 1066 read more g.GAMMAgel 100 ml — special electrode gel for active electrodes (can also be used for passive electrodes), in 100 g doser can (can be carried in hand luggage), with special syringe for easy application
product no.: 1060 read more g.GAMMAgelSET — 10 cans of special electrode gel for active electrodes (can also be used for passive electrodes), in 200 g doser can, with special syringe for easy application
product no.: 1050 read more g.GAMMAcream — special electrode cream for long-term recording with active electrodes (can also be used for passive electrodes), in 200 g doser can, with special syringe for easy application
product no.: 1065 read more g.GAMMAgelBIGbag — 5 liter bag with g.GAMMAgel. Is equal to volume of 22x g.GAMMAgel (1012)
product no.: 1042 read more double-sided adhesive washers — 500 pieces; outer diameter 20 mm, inner diameter 5 mm, for reusable EOG Ag/AgCl electrodes
product no.: 1043 read more double-sided adhesive washers — 500 pieces; 20 mm outer diameter, 8 mm inner diameter for g.LADYbird or g.SCARABEO electrodes
product no.: 1032 read more disposable Ag/AgCl electrodes — pregelled, adhesive electrodes for EMG, ECG; 50 pcs/package, with clip/snap contact
product no.: 1067 read more g.GAMMAsyringe — syringe to fill up g.LADYbird and g.BUTTERFLY electrodes with g.GAMMAgel

Related Media and Documents

Product Manuals/Handbooks

g.GAMMAsys

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gGAMMAsys_ActivePassiveComparison — 17/04/2014 — 714.33 kB
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gGAMMAsys_InstructionsForUse — 17/04/2014 — 1.35 MB
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gGAMMAcap_InstructionsForUse — 17/04/2014 — 1.54 MB