<p><span style="padding: 3px 10px; border-radius: 5px; color: #ffffff; font-weight: bold; display: inline-block; background-color: #ff0000;"> External Email - Use Caution </span></p><p></p><div dir="ltr"><div>Hi Tao,</div><div><br></div><div>I am assuming you mean baseline correction on the output of the tfr_morlet function? Since you are looking at power and it's not linear, the order of the operation should indeed matter. Regarding which is recommended, my intuition would be that averaging in the time-frequency domain is better when you are looking for subtle oscillations that are not necessarily completely aligned in phase. It's what we call induced power in MNE.</div><div><br></div><div>Mainak<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Dec 8, 2019 at 8:22 AM Xia, Tao <<a href="mailto:psytao18@connect.hku.hk">psytao18@connect.hku.hk</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><p><span style="padding:3px 10px;border-radius:5px;color:rgb(255,255,255);font-weight:bold;display:inline-block;background-color:rgb(255,0,0)"> External Email - Use Caution </span></p><p></p><div dir="ltr">Hi all,<div> I am a freshman in time-frequency analysis. I run a time-frequency analysis with tfr_morlet. I found the results are large differences in doing baseline correction before or after average epochs. I was wondering what is the difference between these two steps? </div><div> Thank you very much<br clear="all"><div><br></div>-- <br><div dir="ltr"><div dir="ltr"><div dir="ltr"><div>---------------------------------------</div><div><br></div><div>Tao Xia<span style="font-size:12.8px"> </span></div></div></div></div></div></div>
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