Peter Gamma (Physiologist & Director) Meditation Research Institute Switzerland (MRIS)

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To spend 50 000 USD for a 32 channel EEG headset from g.tec medical for our home lab?

Posted bypg@petergamma.org 2 Comments on To spend 50 000 USD for a 32 channel EEG headset from g.tec medical for our home lab?

Last Updated on December 16, 2023 by pg@petergamma.org

Why does a g.tec medical multi-purpose device have 32 channels? We do not know the answer. OpenBCI has up to 16 channels and is called «open brain computer interface». And g.tec medical multi-purpose uses the word «medical» to describe the device, and not brain computer interface. A g.tec medical multi-purpose device was used in the following validation paper about the Polar OH1:

https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0217288

Here is the picture of the g.tec medical device which was used in the paper.

For comparison we have here an OpenBCI headset.

  • We can see 8 channels on the picture, together with the electrodes on the back head, it has 16 electrodes.
  • We are looking for a device to study the effect of mediation on the brain. The signals of interest are alpha waves which represent a calm state of mind.
  • The other parameter which is interesting are gamma waves, especially gamma waves in the pre-frontal cortex, as we have described previously in our journal.

But can we localize gamma waves in the prefrontal cortex with a 16 channel ECG heatset? We can, we can do this also with the Muse headband. But if we have a choice, we would rather choose a 32 channel device if there is one available which fit s our needs.

Currently this device fit s our needs:

091. Low-cost high-quality ECG & EEG devices which offer validation papers

And the g.tec medical multi-purpose heatset with 32 EEG channels fit s our needs as well. But who spends 50 000 USD for a EEG headset for his home lab?

We personally currently have no plans to spend 50 000 USD for this device, and we do not know if we need such a device for our application. But we are promoting this device instead:

To build a low-cost high-quality 32 channel EEG headset from four PiEEG’s easier than from 4 TI ADS1299EEG-FE boards?

There are also 32 and 64 channel headsets from mBrainTrain, but they offer as far as we know only Bluetooth 5 transmission. And since we are interested in fast high frequency gamma waves we are looking for an EEG headset which offers WIFI transmission.