<div dir="ltr">Hi FTer,<div> I am doing Cluster-based permutation statistic after beamforming on two condition over subjects following the tutorial <a href="http://fieldtrip.fcdonders.nl/example/source_statistics">http://fieldtrip.fcdonders.nl/example/source_statistics</a>, but I get something funny.</div>
<div> In my case , I would expect decreased activity in the visual and posterior area. The effect is quite strong, which is showed in the grand average difference (log ratio to reduce inter subject variability). However , from the statistic , the identified areas go to the temporal area , which doesn't make sense at all . Please see the below and attached pictures. I understand cluster-based permutation test doesn't necessary pick the peak difference, but in general it should find main different area. Any comment would be greatly appreciated.</div>
<div><br></div><div style>Average: </div><div style><br></div><div style><img src="cid:ii_13e2164ad1daedad" alt="Inline images 2" width="1167" height="829"><br></div><div style><br></div><div style><br></div><div style><br>
</div><div style>Statistic:</div><div style><img src="cid:ii_13e21632b3f8bf96" alt="Inline images 1" width="1167" height="875"><br></div><div> Best,</div>
<div> Haiteng<br clear="all"><div><br></div>-- <br><div><div><font face="arial, helvetica, sans-serif">Haiteng Jiang</font></div><div><font face="arial, helvetica, sans-serif">PhD candidate</font></div>
<div><font face="arial, helvetica, sans-serif">Neuronal Oscillations Group</font></div><div><font face="arial, helvetica, sans-serif">Donders Institute for Brain, Cognition and Behaviour</font></div><div><font face="arial, helvetica, sans-serif">Centre for Cognitive Neuroimaging</font></div>
<div><font face="arial, helvetica, sans-serif">Radboud University Nijmegen</font></div><div><span style="line-height:18px;background-color:rgb(255,255,255)"><font face="arial, helvetica, sans-serif"><br></font></span></div>
<div><span style="line-height:18px;background-color:rgb(255,255,255)"><font face="arial, helvetica, sans-serif">Visiting address</font></span></div><div><div style="text-align:left;background-color:rgb(255,255,255)"><div>
<span style="line-height:18px"><font face="arial, helvetica, sans-serif">Room 2.32</font></span></div><div><span style="line-height:18px"><font face="arial, helvetica, sans-serif">Donders Centre for Cognitive Neuroimaging</font></span></div>
<div><span style="line-height:18px"><font face="arial, helvetica, sans-serif">Kapittelweg 29</font></span></div><div><span style="line-height:18px"><font face="arial, helvetica, sans-serif">6525 EN Nijmegen</font></span></div>
<div><span style="line-height:18px"><font face="arial, helvetica, sans-serif">the Netherlands</font></span></div><div><span style="line-height:18px"><font face="arial, helvetica, sans-serif"><br></font></span></div></div>
</div><div><font face="arial, helvetica, sans-serif"> Tel.: +31 (0)243668291</font></div></div><div><font face="arial, helvetica, sans-serif"> Web: <a href="https://sites.google.com/site/haitengjiang/" target="_blank">https://sites.google.com/site/haitengjiang/</a></font></div>
</div></div>