I have been using the Emtoiv EpochX headset, one of the problems that I have been facing is that even though the EEG Contact quality is 100%, the EEG signal quality keeps on fluctuating. For example, its on 95% after the setup when starting the experiment inside the software, it drop to 5% and goes back to 90%. The problem is that the signal quality drops from very high to very low keeps on doing back and forth. I have followed all the procedures for the setup of the headset based on the manual, even the felts are soaked properly in the saline solution.
Is it supposed to be like that? or is there something wrong with the device?
Any suggestion would be greatly appreciated.