Hello,
I need the 256,128, 64, 32 channels density of international 10–20 system. Can you help me what are the names of international 10–20 system for the 64, 128, and 256 channel in the figure below?
For BioSemi caps with 16, 32 and 64 electrodes, first select the correct cap for the number of electrodes. Then, right-click on the created channel file and select strong text it will convert the names from their Ax convention to the international 10-10 (compatible with 10-20 international system). If the option does not appear, be sure, you are running the latest Brainstorm version (03-Jun-2024).
BioSemi caps for 256 and 128 electrodes do not follow the international 10-10 (nor 10-20) layout, thus, there is not an one-to-one equivalent. This is well documented in BioSemi headcaps page and their provided documentation:
Thank you for your response.
Which cap, other than the BioSemi, has the international standard 10-20 for all the 19, 32, 64, 128 and 256 channels?
You could explore the caps available in Brainstorm
If more details are needed about an specific cap, check specifications on the EEG cap maker website