<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Dear Caroline,<div><br><div><div><blockquote type="cite"><div><font face="Arial"><ul><li><font size="2"><font face="Courier New"><span class="754382808-01072011"><font face="Arial"><strong>1. Question</strong>: Is the the timef() ,as I used it,
correct?</font></span></font> </font>
</li></ul></font></div></blockquote><div><br></div><div>Yes, this is a correct usage. You should use newtimef though which is more computationally efficient.</div><br><blockquote type="cite"><div><font face="Arial"><ul><li><font size="2"><span class="754382808-01072011"><strong>2. Question</strong>:
Normally, the output ERSP values are log spectral diffs. from baseline, but
what do they describe, if no baseline is available (baseline set NaN)? Do they
then refelect Event related spektral power after the pulse (in dB?)?</span>
</font>
</li></ul></font></div></blockquote><div><br></div><div>Yes, this reflect the spectrogram. The unit it 10*log(power)/Hz unless you ask otherwise.</div><br><blockquote type="cite"><div><font face="Arial"><ul><li><font size="2"><span class="754382808-01072011"><strong>3. Question</strong>:
I set cycles number to 0.25 (that I earn frequency range 1-4.5 with 0.25 Hz
bins), can I use that?</span> </font>
</li></ul></font></div></blockquote><div><br></div><div>It is better to start with numbers above 1 for cycles, otherwise you frequency resolution will be very poor.</div><br><blockquote type="cite"><div><font face="Arial"><ul><li><span class="754382808-01072011"><font size="2"><strong>4.
Question:</strong> Can I assume, when the <span class="754382808-01072011">ersp_c1(i).ersp differ from the <span class="754382808-01072011">ersp_c2(i).ersp in any timepoint, that the EMF pulse
leads to a change in spektral power (after the pulse) for this
timepoint(s)?</span></span></font></span></li></ul></font></div></blockquote><div><br></div><div>Yes, this is a reasonable assumption if the difference proves to be significant. You can test this hypothesis when using the newtimef function.</div><div>Best,</div><div><br></div><div>Arno</div><div><br></div><div><br></div></div><br></div></div></body></html>