Are EMG snap electrode cables compatible with dry EEG electrodes?
jayceeare
London
in Electrodes
Hi everyone,
We're currently building a neurofeedback tool using the Cyton board and would like to use the dry Datwyler Softpulse EEG electrodes with it.
We only have EMG/ ECG snap electrode cables available to which we want to snap the Datwyler electrodes. The specifications say that the EMG/ECG electrodes are "not compatible with the 5mm dry comb electrodes" which seems odd as they snap perfectly to the cables. Does anyone see a reason why it should not be possible to read EEG activity using the EMG cables, the dry electrodes and an OpenBCI board?
Has anyone ever tried reading EEG activity with EMG snap electrodes and dry electrodes?
Thanks!
Julius
Comments
Julius, hi.
It looks like the soft Datwyler electrodes ARE using the same connectors as the ECG electrodes:
https://datwyler.com/technology-innovation/advanced-technologies/strategic-fields/wearables-digital-health/softpulse
However the HARD plastic dry electrodes used in Ultracortex (5mm dry combs, or older 'spikey' dry combs), are NOT compatible with the ECG snap connectors. You can see the various dry hard electrodes here,
https://fri-fl-shop.com/collections/electrodes-eeg-electrodes
Note they now have BOTH the original LARGE connector combs / cones, and newer combs that do have ECG snap connectors. Here is an example of the original cables used with the original combs / cones,
https://fri-fl-shop.com/products/tde-207xx-1-5-mm-safety-jack-for-eeg-electrodes-specify-color-and-length
https://fri-fl-shop.com/products/new-longer-5mm-spike-disposable-reusable-dry-eeg-electrode-tde-210
William
Hi William,
Thanks for your research. You're right, it definitely seems that the Datwyler electrodes should be compatible with the snap electrode cables.
We tested them as well yesterday and they connected easily and streamed data which is why we got even more curious about why the snap electrode cables should not be compatible with the electrodes. It seems that the Datwyler electrodes are exactly designed to be used with the snap electrodes so we got a bit confused. Now it makes sense that the dry comb electrodes thee specs referred to are simply not the same as the newer cone electrodes.
Thanks again for resolving the confusion and cheers from London,
Julius