How are digital EEG montages reformatted?

Digital EEG montages are reformatted using a system reference. This means that the data collected from the electrodes are referenced to a chosen electrode or a set of electrodes that serve as a consistent reference point across the entire recording. This approach allows for improved comparisons between different sites on the scalp because it maintains a uniform reference standard.

By using a system reference, the data can be processed and analyzed more effectively, as it provides a stable baseline for interpreting the brain's electrical activity. This method is particularly useful for identifying patterns and abnormalities in the EEG, as it can help to balance out noise and artifacts that may originate from other sources.

In contrast, other referencing methods, such as local or common references, may introduce variability or skewed results depending on the placements and characteristics of the reference electrodes used. Therefore, adopting a system reference is crucial for clarity and consistency in digital EEG analysis.