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<pre><span style="font-size: 12pt; font-family: "Times New Roman";"
lang="EN-GB">Hi to everyone,<o:p></o:p></span></pre>
<pre wrap=""><span
style="font-size: 12pt; font-family: "Times New Roman";" lang="EN-GB">I would like to obtain data about Power Spectra and Coherence between channels (cf. Andres et al., 1999, Brain, 122, 855-870) and I have 3 questions:<o:p></o:p></span></pre>
<pre wrap=""><span
style="font-size: 12pt; font-family: "Times New Roman";" lang="EN-GB">(1) Concerning the Power, I use the function pop_spectopo() in order to obtain the channels spectra but it seems that the data in the Matlab array editor do not correspond to the data that produce the graph (values from -2 to 10 dB for the graph and values from -59 to 15 for the Matlab array). What are the values I obtain in the array editor? and how can I get the "real" data, that correspond to the graph?<o:p></o:p></span></pre>
<pre wrap=""><span
style="font-size: 12pt; font-family: "Times New Roman";" lang="EN-GB">(2) Concerning the Coherence, I obtain coherence between two channels by using the function pop_newcrossf(). Does anyone know how to visualize the data corresponding to </span><span
style="font-size: 12pt; font-family: "Times New Roman";" lang="EN-GB">both </span><span
style="font-size: 12pt; font-family: "Times New Roman";" lang="EN-GB">the amplitude and the phase coherences in the Matlab array editor?<o:p></o:p></span></pre>
<pre style="margin-bottom: 12pt;" wrap=""><span
style="font-size: 12pt; font-family: "Times New Roman";" lang="EN-GB">(3) When I perform the function pop_newcrossf(), I wonder why the epoch is reduced. <o:p></o:p></span></pre>
<pre style="margin-bottom: 12pt;"><span
style="font-size: 12pt; font-family: "Times New Roman";" lang="EN-GB">Sorry for these basic questions and thanks for any help.
Jessica Tallet (Research Assistant)
</span><span style="font-size: 12pt; font-family: "Times New Roman";"
lang="EN-GB">Faculty of Psychology<o:p></o:p></span><st1:place
w:st="on"><st1:City w:st="on"><span
style="font-size: 12pt; font-family: "Times New Roman";" lang="EN-GB">
University of Geneva</span></st1:City><span
style="font-size: 12pt; font-family: "Times New Roman";" lang="EN-GB">, <st1:country-region
w:st="on">Switzerland</st1:country-region></span></st1:place>
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