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<p>Dear Makoto,</p>
<p><br>
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<p>Thanks for your insight. This was what I suspected.</p>
<p>I later went ahead and did it both ways to compare the differences; while the general spectral characteristics seemed similar the numbers were pretty off.</p>
<p>Seems like there's no shortcut to this.</p>
<p><br>
</p>
<p>Thanks,</p>
<p>Julian</p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Makoto Miyakoshi <mmiyakoshi@ucsd.edu><br>
<b>Sent:</b> Thursday, February 2, 2017 10:01:09 AM<br>
<b>To:</b> Julian Yaoan Cheng<br>
<b>Cc:</b> eeglablist@sccn.ucsd.edu<br>
<b>Subject:</b> Re: [Eeglablist] Wavelet analysis result combination</font>
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<div dir="ltr">Dear Julian,
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<div>If you are talking about STUDY (i.e. group-level solution), yes you can do it. You can combine Ahit and Amiss conditions into one condition by using STUDY.design from GUI.</div>
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<div>For a single-subject analysis, you need to create a .set that contains Ahit and Amiss to represent Ahit + Amiss. But I don't think you can perform single-subject ERSP subtraction test (at least with decent statistics).</div>
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<div>Makoto</div>
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<div class="gmail_extra"><br>
<div class="gmail_quote">On Tue, Jan 31, 2017 at 10:20 AM, Julian Yaoan Cheng <span dir="ltr">
<<a href="mailto:jycheng0@stanford.edu" target="_blank">jycheng0@stanford.edu</a>></span> wrote:<br>
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<p>Hi all,</p>
<p><br>
</p>
<p>Lets say I have conditions A,B for which there are sub-categories hit and miss, forming Ahit, Amiss, Bhit, Bmiss.</p>
<p>If I'm interested in seeing [A vs B], [Ahit vs Amiss], and [Bhit vs Bmiss] analyses, can I do just 2 separate wavelet analyses [Ahit vs Amiss] and [Bhit vs Bmiss], and then use algebra on the ERSP matrix to generate [A vs B] (as in: [(Ahit + Amiss) - (Bhit
+ Bmiss)])? Or do I have to pool the epochs and do a third wavelet of [A vs B] proper?</p>
<p>I am assuming of course that all wavelet parameters are the same (cycles, baseline, frequency/times ...etc).</p>
<p><br>
</p>
<p>Thanks,</p>
<p>Julian</p>
<p></p>
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<br>
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-- <br>
<div class="gmail_signature" data-smartmail="gmail_signature">
<div dir="ltr">Makoto Miyakoshi<br>
Swartz Center for Computational Neuroscience<br>
Institute for Neural Computation, University of California San Diego<br>
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