Neuroelectrics Support

A Neuroelectrics’ device connected to a test board will respond as a system properly placed in a subject, with a very similar electrical environment, that is why we refer to it as an “artificial head”. This tool lets us know if the root cause of the high impedance issue is the device, the cables, or the setup. I kindly ask you to run the protocol 1.

Using the flat cable connection as the picture shows, the eight channels of the system plus the CMS and DRL are connected to the testboard. As a result, all the channels are connected to this “ideal head of a subject” and, using this setup, the protocol 1 shouldn’t be aborted due to high impedances. If the protocol is aborted, we can assume this issue comes from the device itself. In this case, please If the stimulation protocol can be run without a problem, we know the issue doesn't come from the device and it may come from the cables or the setup.

This first protocol might be aborted once, so if the first attempt fails, make sure the cable is well connected on both ends and try 2 or 3 more times. If after this the protocol is still aborted, if possible, try with another flat cable. If protocol still fails with the same channel, everytime, then its time to check the pin associated to that channel, as it might be bent.

In order to test the electrode cables, please see the picture above. Using the electrode cable connection, the CMS, the DRL and two channels are connected to the testboard. In this case, the channels 1 and 6 would be tested. Find attached a bipolar stimulation "protocol 2" with channels 1 and 4. I kindly ask to run it mounted the second image shows, if it is aborting due to high impedances we can then be sure that there is an issue with the cables.