Mind Monitor

I'm currently developing a program in python with a basic UI, which receives EEG data from Petal metrics via the LSL protocol. My question regards the signal quality check of the Muse device. In both Interaxon's application and in Mind Monitor, the horseshoe indicates how good the connection of each sensor is. How is that process carried out? Interaxon's SDK is very limited and does not mention this at all, from what I've found. How does the signal quality check in Mind Monitor work James?

Thanks in advance,
Leo

Mind Monitor uses the values supplied by the Interaxon SDK.
What you should be looking for is minimal variance on the RAW EEG, with the exception of blinks. The lower the min/max of RAW EEG over a period of time, the better the signal quality.