[Eeglablist] Events marks disapearing in EDF format.

[Alois Schloegl]

Hi Felipe,


The original specification of EDF (Kemp et al 1992) does not provide any 
space for marker information. Later, EDF+ was proposed which can contain 
an annotation channel.
Most vendors provide only EDF export, but not EDF+. If Alice exports EDF 
but not EDF+, than the marker information is lost during this procedure.


Alois


On 05/30/11 23:09, Felipe Beijamini wrote:
> Hello Everyone.
> I have some EEG data recorded by the polysomnography "Alice 5 - Respironics"
> which permit export the data to edf format. I want to work with this data
> using the EEGLAB to perform some spectral analysis. However when I do import
> the .edf files to EEGLAB I can´t find the event markers that a need to do my
> work.
> Do you know If is any way to import the data with the event markers?
> I´m new with EEGLAB, I hope you´ll understant my very basic question.
> Thank you.
>
> Felipe
>
>
>
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