[Eeglablist] Biosemi reference- Re reference?

[Laura Kaczer]

Hi all,
Sorry for the basic question:
-When importing a Biosemi file, it is required to specify a certain
reference, so I chose the linked mastoids. However, it is not clear to me
whether this step is the same as Re-referencing all channels to mastoids.
In the EEEGLAB window, it says “Reference: unknown”, and from this I
assume the data is still not referenced
  So, if I want to re-reference,
do I have to choose the same reference that I used when importing the
Biosemi data? Or is it redundant?

Many thanks in advance!
Laura