Below is an image of the recording from one of my electrodes: enter image description here Can someone please tell me why the recording is slanted, i remember learning this in my university but forgot about it, i think it was related to dc offset, not sure. Also can you suggest possible ways to fix it.

  • $\begingroup$ One guess (something I have simply heard before, this is not my field): the conductivity improved over the course of the experiment, e.g., due to sweat. $\endgroup$ – Steven Jeuris Oct 17 at 8:28
  • $\begingroup$ Ohh, I did use water electrodes, so probably it took a while for the interface to form up well $\endgroup$ – Roshan Oct 17 at 9:15
  • $\begingroup$ In the case of water electrodes the opposite can happen as well (they dry out). This is also a clear indication that it would be useful to provide some axes information (units and scale). :) You can edit your question to include that. $\endgroup$ – Steven Jeuris Oct 17 at 9:24
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    $\begingroup$ I'll edit the image, but drying out is not possible as the electrodes that i have purchased can be moist for a duration of 8 hours and the recording shown here was for under 2 min. $\endgroup$ – Roshan Oct 17 at 11:07
  • $\begingroup$ ... all of which is relevant information to add to the question. ;p $\endgroup$ – Steven Jeuris Oct 17 at 11:33

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