I was trying to get FFT power of an interval in a record. The sleep recording software we use doesn't allow to export EDF format of an interval, only of the whole record, but it allows to extract an ascii file with uV value of a single lead. We are selecting the visually cleaner part of a longer dot test task.The way I'm proceeding now, is toimport them in eeglab, use FIR automatic filter with 0.5 - 28 low hi passrun this script[power, freq] = spectopo(EEG.data(chanNr, :), 0, sampRate, 'winsize', 512, 'freqfac', 2,'freqrange',[0 28]);(chanNr = 1 and sampRate =512)I am note very familiar with signal analysis, am I proceeding in the proper way? The output I get from spectopo in the power variable, is uV squared, right?
EEGlab: power spectral density from a single eeg lead
eeg;signal processing