Capturing respiration when using Ganglion
evolution_encoded
East Coast US
in Ganglion
What is the best way to capture respiration while using the ganglion, ideally while using Neuromore or BrainBay?
Emotibit does not seem to support direct connection to the Ganglion, or at least the docs don't make that obvious. Not sure if that is an undocumented option?
Is there another sensor that could be used for this?
Or maybe someone has a slick algorithm that can extract it from EEG signal? Doubtful, but worth asking.
Comments
The Ganglion data stream (packet format), does not contain any extra space for adding more sensor data bits. Your best bet is to use both the Ganglion and Emotibit together with their two data streams.
William
Thanks for clarifying that William.
It looks like the Ganglion can accept the pulse sensor, so it was worth asking if it could support the Emotibit. Oh well.
The software for Emotibit appears to be for recording and offline review. My use case is neurofeedback/biofeedback, so I might go with the pulse sensor alone since it's compatible with the Ganglion board, could be incorporated for biofeedback, and forego the respiratory input for now.
Hmm, I'm not sure some of the information on the OpenBCI sites is correct, as far as using Pulse Sensor with Ganglion. It IS definitely supported on Cyton. And the person writing the shop listing text, might have just made an assumption. See this thread for the difficulties with Ganglion:
https://openbci.com/forum/index.php?p=/discussion/919/ganglion-and-pulse-sensors
Basically it's what I said before, there is no extra space in the Ganglion packet format for Pulse Sensor data, AND, it would require firmware changes as well, since there is NO collection of Simblee analog input pins currently. Finally, to get respiration is NOT the same as simple PPG pulse rate calculation. You have to look in detail on the rise and fall of the PPG waves.
My understanding was that Emotibit can do live streaming OR SD card recording, see below.
https://www.emotibit.com/
More complexities with the Ganglion and pulse sensor than I first understood.
I will have to read through the Emotibit Visualizer docs. The Emotibit website is a bit difficult to navigate, so reviewing the docs on github.