Spectral Analysis on EEG data

Hi everyone,

I am quite new in MatLab as well as in EegLab. Some months ago I started a project using EEG, and now I would like to make the "Spectral Analysis" on my eeg data. I apologize for my inexperience, but I really do not know where to start or where to take information to make this kind of analysis.

Can anyone please some directions/advices on this type of analysis? And how to perform it?

Thanks in advance!

Sara