[Eeglablist] ERSP parametres

[Daniele D. Marasco]

Dear list,

I'm trying to perform my first TF analisys (study-->precomp-->ersp), but
I'm not sure about the parametres to use. My ephochs are  -1000 to 7000 ms
(512 Hz s.r.). I'm interested in theta-alpha bands and I'd like to perform
only one analysy (preliminarly... at least).

I'm using these parametres:

'cycles',[2 0.5], 'freqs',[4 13], 'nfreqs', 100, 'ntimesout', 400,
'freqscale','linear'

In this way I have just obtained (via TEST):

Computing Event-Related Spectral Perturbation (ERSP) and
  Inter-Trial Phase Coherence (ITC) images based on 20 trials
  of 4096 frames sampled at 512 Hz.
Each trial contains samples from -1000 ms before to
  6998 ms after the timelocking event.
  Image frequency direction: normal
Using 2 cycles at lowest frequency to 3.25 at highest.
Generating 200 time points (-721.7 to 6719.7 ms)
Finding closest points for time variable
Time values for time/freq decomposition is not perfectly uniformly
distributed
The window size used is 285 samples (556.641 ms) wide.
Estimating 100 linear-spaced frequencies from 4.0 Hz to 13.0 Hz.
Processing time point (of 200): 10 20 30 40 50 60 70 80 90 100 110 120
 130 140 150 160 170 180 190 200
Computing the mean baseline spectrum
Note: Add output variables to command line call in history to
      retrieve results and use the tftopo function to replot them

What do you think about? Could you suggest me some ideas?

Thanks so much!
Daniele
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