<div dir="ltr">Dear Tyler,<div><br></div>> it tells me that it can't be performed on more than two datasets. I then had a quick look at the SIFT manual, and it does appear as though only two datasets are examined, one for each condition. I'm wondering how multiple subjects is handled in this instance, is it designed for only one subject? or am I meant to merge the datasets from the multiple subjects?<div><br></div><div>I think there is some kind of gorup-level solution for SIFT by the original developer Tim Mullen and his colleague Nima Bigdely-Shamlo, both my former colleagues in SCCN. If you use Nima's Measure Projection Toolbox, I think you can find 'connectivity measures' or something like that in the GUI menu. I have never tried it myself though. It probably projects only total information outflow and inflow (i.e., sum of columns and rows of the connnectivity matrix; in this way, you can handle the data as if it were ERSP.)</div><div><br></div><div>I have developed groupSIFT solution, which can fully resolve ROI x ROI x time x freq (x subjects) which is still version alpha (i.e., limited to my collaborators only). The groupSIFT is based on Nima's Network Projection, which is a connectivity version of the Measure Projection.</div><div><a href="https://sccn.ucsd.edu/wiki/GroupSIFT" target="_blank">https://sccn.ucsd.edu/wiki/GroupSIFT</a><br></div><div>If you are interested in trying it out, write me separately.<br></div><div><br></div><div>Makoto</div><br><div class="gmail_quote"><div dir="ltr">On Tue, Aug 21, 2018 at 9:55 AM Clement Lee <<a href="mailto:cll008@eng.ucsd.edu" target="_blank">cll008@eng.ucsd.edu</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"><div dir="ltr"><div style="font-family:"times new roman",serif;font-size:small">Dear Tyler,</div><div style="font-family:"times new roman",serif;font-size:small"><br></div><div style="font-family:"times new roman",serif;font-size:small">That is indeed correct. For group level analysis with SIFT, see <a href="https://sccn.ucsd.edu/wiki/GroupSIFT" target="_blank">groupSIFT</a> (currently under development). I've cc'd Makoto, the main developer (and author of wiki page), here.</div><div style="font-family:"times new roman",serif;font-size:small"><br>Best,</div><br><div class="gmail_quote"><div dir="ltr">On Mon, Aug 20, 2018 at 11:35 PM Tyler Grummett <<a href="mailto:tyler.grummett@flinders.edu.au" target="_blank">tyler.grummett@flinders.edu.au</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">
<div dir="ltr">
<div id="m_3287634997570698859gmail-m_-1748760556818086205m_7416117731384549384divtagdefaultwrapper" style="font-size:12pt;color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif" dir="ltr">
<p style="margin-top:0px;margin-bottom:0px">Dear EEGLAB,</p>
<p style="margin-top:0px;margin-bottom:0px"><br>
</p>
<p style="margin-top:0px;margin-bottom:0px">I've been slowly making my way through the SIFT toolbox, and I am currently at the stage where I am trying to perform surrogate statistics (or any statistics between two conditions, 20 subjects in each). All steps previous
were performed on each subject individually. When I run the surrogate statistics, it tells me that it can't be performed on more than two datasets. I then had a quick look at the SIFT manual, and it does appear as though only two datasets are examined, one
for each condition. I'm wondering how multiple subjects is handled in this instance, is it designed for only one subject? or am I meant to merge the datasets from the multiple subjects?</p>
<p style="margin-top:0px;margin-bottom:0px"><br>
</p>
<p style="margin-top:0px;margin-bottom:0px">Thanking you in advance as always,</p>
<p style="margin-top:0px;margin-bottom:0px">Tyler</p>
<p style="margin-top:0px;margin-bottom:0px"><br>
</p>
<div id="m_3287634997570698859gmail-m_-1748760556818086205m_7416117731384549384Signature">
<div id="m_3287634997570698859gmail-m_-1748760556818086205m_7416117731384549384divtagdefaultwrapper" dir="ltr" style="font-size:12pt;color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols">
<div name="divtagdefaultwrapper">
<div style="font-family:Tahoma;font-size:13px">
<div style="font-family:Tahoma;font-size:13px">
<div style="font-family:Tahoma;font-size:13px">
<div style="font-size:13px">*************************
<div style="font-family:Tahoma"><br>
</div>
<div><font face="Arial"><i>Tyler Grummett ( BBSc, BSc(Hons I))</i></font></div>
<div><font face="Arial"><i>PhD Candidate</i></font></div>
<div><font face="Arial"><i>Brain Signals Laboratory</i></font></div>
<div><font face="Arial"><i>Multimodal Recording Facility</i></font></div>
<div><font face="Arial"><i>Flinders University Tonsley Building</i></font></div>
<div><font face="Arial"><i>Rm 4.17</i></font></div>
<div><font face="Arial"><i>Ext 19573</i></font></div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="m_3287634997570698859gmail-m_-1748760556818086205gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div><font color="#000000" face="garamond, serif" size="2">Clement Lee</font></div><div dir="ltr"><font color="#000000" face="garamond, serif" size="2">Applications Programmer<br>Swartz Center for Computational Neuroscience<br>Institute for Neural Computation, UC San Diego<br>858-822-7533</font></div></div></div></div></div></div></div></div></div></div></div></div></div>
</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="m_3287634997570698859gmail_signature"><div dir="ltr">Makoto Miyakoshi<br>Swartz Center for Computational Neuroscience<br>Institute for Neural Computation, University of California San Diego<br></div></div></div>