Mitsar-EEG-BT reference electrode options

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Mitsar-EEG-BT offer a few reference electrodes options. You can choose Reference electrode in software settings. The Reference drop down menu is available only after you have selected your amplifier in EEGStudio-Application Options – Hardware.

Mitsar-EEG-BT amplifier reference electode selection in EEGStudio softwaare

Following Reference option are available for Mitsar-EEG-BT amplifier:

eeg machine, eeg amplifier
  • REF – Common reference*
  • A1 – left ear
  • A2 – right ear
  • AA – linked ears (LE)
  • Cz electrode

* – Montages should be designed in conformity with Guideline 6: A Proposal for Standard Montages to Be Used in Clinical Electroencephalography. It is desirable that at least some montages in all laboratories be uniform to facilitate communication and comparison. Digital systems allow reformatting of montages to provide optimal display of activity at the time of interpretation. To permit this flexibility, initial recording must be made from a referential montage; but the system reference itself cannot easily be reformatted. For this reason the digital recording reference should be an additional electrode (or combination of electrodes), and not one of those in the 10:10 or 10:20 system. An additional electrode between Cz and Pz is commonly used. The use of linked ears as a digital recording reference is specifically discouraged

American Clinical Neurophysiology Society
Guideline 1: Minimum Technical Requirements
for Performing Clinical Electroencephalography

To be able to apply any Montage to you recording for processing we recommend to install both REF and A1, A2 electrodes while you do recording. It will allow you to apply both common REF montages and well as linked ears montages and there you use A1 for left and A2 to right hemisphere.

For example if you use AA like a reference in your re-montaging will be limited with just linked ears reference.

You can learn how to setup correct reference in WinEEG in following article>>

Previous ECG/EOG/EMG biosignals recording
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