Dear Arunnee,
1. It is impossible to determine the cause of the low amplitude responses (or lack of responses) from the information and screen shot that was provided. It would be more helpful to have a copy of the actual subject data folder with the data file shown in the screen shot so that we can vary the plot parameters appropriately to diagnose the problem. The subject folder and its contents must be copied and compressed prior to emailing it. It is important to know if the recording parameters were properly loaded into the automatic amplifier before testing. If an error message appeared listing settings for a manual amplifier was displayed prior to the opening of the recording window, then the parameters were not properly loaded and may account for the responses in the screen shot. There are other possible causes as well but we do not have enough information at this time.
2. No picture was received after #2 in the forwarded email and we do not understand the problem with the mfERG. Please explain this problem more fully.
It may be best to schedule and online session if that is possible for the customer. Please advise as to an early morning (India) date and time if this is possible.
Best regards,
- Mike