<div dir="ltr">Dear Alex,<div><br></div><div>> Am I correct?</div><div><br></div><div>Yes.</div><div><br></div><div>> Should anything else be used (i.e. Edit/Select data using events) or EEGLab scripts employing functions such as timef, pop_spectopo, instead?<br></div><div class="gmail_extra"><br></div><div class="gmail_extra">If you can write code of course you will have much more choices, but it's not mandatory.</div><div class="gmail_extra"><br></div><div class="gmail_extra">Makoto</div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Jul 8, 2015 at 2:16 PM, <a href="mailto:alessandro.marassi@libero.it">alessandro.marassi@libero.it</a> <span dir="ltr"><<a href="mailto:alessandro.marassi@libero.it" target="_blank">alessandro.marassi@libero.it</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div></div>I performed an audio P300 StimulusPresentation experiment in which the audio signal has a duration of 375 ms and the interstimulus interval lasts 1250 ms.<br>I would like to get a spectral plot of density power of:<br><br>1. an overall chosen EEG channel on all available data;<br>2. over the 1000 ms preceding the Stimulus begin event on all epochs;<br>3. over the first 600 ms following the Stimulus begin events on all epochs;<br>4. over the first 600 ms following the Stimulus begin events in the attended stimuli epochs;<br>5. over the first 600 ms following the Stimulus begin events in the unattended stimuli epochs;<br><br>In order to get 1. I tried:<br>Plot/Channel Properties or Plot/Channel Spectra and Maps<br><br>In order to get 2. and 3. I first used Tools/Extract Epochs by StimulusBegin in order to subdivide data in epochs and then Plot/Channel Spectra and Maps, selecting time begin-end respectively as -1000 0 and 0 600.<br><br>In order to get 4. and 5. I first followed the procedure to select attended/unattended events by Edit/Select Epochs or Events applied on the extracted epochs dataset and then Plot/Channel Properties or Plot/Channel Spectra and Maps<br><br>Am I correct?<br>Should anything else be used (i.e. Edit/Select data using events) or EEGLab scripts employing functions such as timef, pop_spectopo, instead?<br><br>thanks,<br>Alex<br><br>_______________________________________________<br>
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