<div dir="ltr">Hi Ninja,<div><br></div><div>Not counting the issues with ft_sourceplot, my first observation is that I think you are confusing what is common for the common filter that you are creating. <span style="font-family:arial,helvetica">s</span><font style="font-family:arial,helvetica">ource_post.avg.</font><span style="font-family:arial,helvetica">filter is common over both conditions for the post-stimulus window only, meaning that it can be applied to </span></div>
<div><span style="font-family:arial,helvetica"><br></span></div><div><span style="font-family:arial,helvetica">source_post_co</span><font style="font-family:arial,helvetica">nd1<font> = ft_sourceanalysis (cfg,timelock_post_<font>cond1</font>)</font></font><span style="font-family:arial,helvetica"><br>
</span></div><div><font style="font-family:arial,helvetica"><font>or </font></font></div><div><div><span style="font-family:arial,helvetica">source_post_co</span><font style="font-family:arial,helvetica">nd2<font> = ft_sourceanalysis (cfg,timelock_post_<font>cond2</font>)</font></font><span style="font-family:arial,helvetica"><br>
</span></div><div><font style="font-family:arial,helvetica"><font><br></font></font></div></div><div><font style="font-family:arial,helvetica"><font>But not to </font></font></div><div>
<span style="font-family:arial,helvetica">source_pre_cond1 = ft_sourceanalysis (cfg,timelock_pre_cond1</span><font style="font-family:arial,helvetica">);. You need a filter computed from </font><span style="font-family:arial,helvetica">source_pre for this. </span><font style="font-family:arial,helvetica"><font><br>
</font></font></div><div><span style="font-family:arial,helvetica"><br></span></div><div><span style="font-family:arial,helvetica">Alternativey, have 1 overall filter common to both condtions and both time windows. (i.e. Use the time window [-.2 .2] and all conditions to create this filter).</span></div>
<div><span style="font-family:arial,helvetica"><br></span></div><div><span style="font-family:arial,helvetica">Specific to your sourceplot question, I'm less familiar with this, and hopefully someone else can answer, but is it a problem that you call </span><span style="font-family:arial,helvetica">cfg.funparameter = 'nai';? or does it need to be 'avg.nai'? </span></div>
<div><span style="font-family:arial,helvetica"><br></span></div><div style><span style="font-family:arial,helvetica">Cheers,</span></div><div style><span style="font-family:arial,helvetica">Johanna</span></div><div><font style="font-family:arial,helvetica"><font><br>
</font></font></div><div><font style="font-family:arial,helvetica"><font><br></font></font></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">2013/1/24 Ninja Katja Horr <span dir="ltr"><<a href="mailto:ninja78278@aol.com" target="_blank">ninja78278@aol.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><font color="black" face="arial"><font color="black" face="arial">
<div style="font-size:10pt;font-family:arial,helvetica">
<div>
<font color="black" face="arial"><font color="black" face="arial">
<div style="font-size:10pt;font-family:arial,helvetica">
<div>
<font color="black" face="arial"><font color="black" face="arial">
</font>
<div style="font-size:10pt;font-family:arial,helvetica"><font color="black" face="arial">
</font>
<div><font color="black" face="arial">
<font color="black" face="arial"><font color="black" face="arial">
</font></font>
</font>
<div><font color="black" face="arial"><font color="black" face="arial"><font color="black" face="arial"> Dear Fieldtrip<font>-Users, <br>
<br>
<font>I am t<font>rying to do lcmv beamform sourcean<font>alysis w<font>it<font>h a common filter for all conditions<font> <font>(<font>same session<font>, <font>different trials <font>defined with ft_pr<font>eprocessing belon<font>g to different conditions,sequence of conditions </font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font>randomly inter<font>mixed for each block). <br>
<font><font>However i<font>f I <font>use the common filter calculated from<font> one</font> block (consist<font><font face="arial">ing</font> <font>of 57 trials)</font></font> <font>ft_sourceplot doesn't show any activity anymore<font> (if <font>I run each condition se<font>p<font>arate<font>ly</font> with<font>out common filters i<font>t is working). <br>
<br>
<font>Her<font>e is how I proc<font>eed: <br>
<br>
<font><font face="arial">%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</font></font><br>
<br>
<font>% MAKE <font>TIMELOCKANALYSIS <font>F<font>OR</font></font> <font>COMPLETE</font> BLOCK<br>
<br>
cfg = [];<br>
<font>cfg.channel='MEG';<br>
<font>cfg.keeptrials='yes';<br>
<font>cfg.blc<font>='yes';<br>
<font>cfg.blcwindow = [-<font>0.2 0]<br>
<font>data = ft_timelockanalysis(cfg,data);</font><br>
<br>
<font>cfg<font> = [];<br>
<font>c<font>fg.channel = 'MEG'<br>
<font>cfg.covariance ='yes';<br>
<font>cfg.covar<font>iancew<font>indow = [0 0.2];<br>
<font>cfg.removeme<font>an = 'no';<br>
<font>cfg.keeptrials = 'yes';<br>
<font>timelock_post = ft_timelockanalysis(cfg,data);<br>
<font>cfg.covariancewindow = [-0.2 0];<br>
<font>timelock<font>_pre = ft_timelockanal<font>ysis(cfg,data);<br>
<br>
<font>%M<font>AKE SOURCEANALYSIS <font>FOR</font> COMPLETE BLOCK AND KEEP F<font>ILTER<br>
<br>
<font>cfg = [];<br>
<font>cfg.method = 'lcmv';<br>
<font>cfg.grid = grid.grid;<br>
<font>cfg.vol = vol.vol;<br>
<font>cfg.grad = grad.grad;<br>
<font><font>cfg.keeptrials='yes';<br>
<font>cfg.lcmv.lamda = '5%<font>';<br>
<font><font>cfg.lcmv.keepfilter <font>= 'yes';</font></font></font><br>
<font><font>source_post = ft_sourceanalysis<font>(cfg,timelock_post);<br>
<font>source_pre = ft_sourceanalysis<font>(cfg,timelock_pre);<br>
<br>
<font><font>source_post.avg.nai = source_post.avg.pow<font>./source_pre.avg.pow;<br>
<br>
<font>%<font>MAKE TIMELOCKANALYSIS O<font>F S<font>PE<font>CIFIC</font></font> CONDITIONS<br>
<br>
<font>cfg = [];<br>
<font>cfg.trials=<font>cond1</font>; %this <font>picks out the <font>trials belonging to condition<font>1<br>
<font>cfg.channel ='MEG<font>';<br>
<font>cfg.keeptrials='yes'<font>;<br>
<font>cfg.blc = 'yes';</font><br>
<font>cfg.blcwindow = [-02 0];<br>
<font>data=<font>ft_timelockanalysis(cfg,data);<br>
</font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font><font color="black" face="arial"><font color="black" face="arial"><font color="black" face="arial"><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font color="black" face="arial"><font color="black" face="arial"><font color="black" face="arial"><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font><br>
<font>cfg =[];<br>
<font><font>cfg.channel='MEG';<br>
<font>cfg.covariance='yes';<br>
<font>cfg.<font>covariancewindow=[0<font> 0.2];<br>
<font>cfg.removem<font>ean ='no';<br>
<font>cfg.keeptrials='yes';<br>
<font><font>timelock_post_<font>cond1</font> = ft_timelockanalysis(cfg,data);<br>
<font>timelock_pre_<font>cond1 = ft_timelockanalysis(cfg,data);<br>
<br>
</font></font></font></font></font></font></font></font></font></font></font></font></font></font><font>%MAKE<font> SOUCEANALYSIS <font>OF SPECIFIC CONDITION USING THE COM<font>MON FILTER OF THE BLOCK<br>
<br>
<font>cfg = [];<br>
<font>cfg.method = 'lcmv';<br>
<font><a href="http://cfg.gr" target="_blank">cfg.gr</a><font>id = grid.grid;<br>
<font>cfg.grid.filter=s<font>ource_post.avg.</font>filter;<br>
<font>cfg.lcmv.keepfilter='no';<br>
<font>cfg.keeptrials = 'yes';<br>
<font>cfg.vol = vol.vol;<br>
<font>cfg.grad=grad.grad;<br>
<font>cfg.lcmv.lam<font>bda='5%';<br>
<br>
<font>source_post_co<font>nd1<font> = ft_sourceanalysis (cfg,timelock_post_<font>cond1</font>);<br>
<font>source_pre_cond1 = ft_sourceanalysis (cfg,timelock_pre_cond1<font>);<br>
<br>
<font>source_post_cond1<font>.<font>avg.nai = source_post_cond1.avg.pow./source_pre_cond1.avg.pow;<br>
<br>
<font>%PLOT<br>
<br>
<font>source_post_<font>cond1</font>.pos = <font>template.pos;<br>
<font>source_post_cond1.dim = template.dim;<br>
<font>source_post_cond1.xgrid = t<font>emplate.xgrid;<br>
<font>source_post_cond1.ygrid = template<font>.ygrid;<br>
<font>source_post_cond1.z<font>grid = template.zgrid; <br>
<br>
<font>cfg = [];<br>
<font>cfg.parameter =' avg.nai';<br>
<font>interp_co<font>nd1 = ft_sourceinterpolate (<font>cfg,source_<font>post_cond1,mri);<br>
<br>
<font>cfg = [];<br>
<font>cfg.funparameter = 'nai';<br>
<font>cfg.method = 'ortho';<br>
<font>cfg.location = 'max';<br>
<font>cfg.funcolorlim = [1.5 2.0];<br>
<br>
<font><font>ft_sourceplot (cfg,in<font>terp_cond1);<br>
<br>
<font><font face="arial">%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</font></font><br>
<br>
<font>I also tried i<font>t using rawtrials, but with the same outcome (no activation visi<font><font face="arial">ble </font></font>in sourceplot). <br>
<font>As I said, doing the same thing for cond1 wi<font>thout using the common filter works perfectly fin<font>e</font>. <br>
<br>
<font><font>Does anybody have an idea what <font>might be my mistake</font><font>?</font>. <br>
<br>
<font>Thank you<font> a lot for your help!</font><span class="HOEnZb"><font color="#888888"><br>
<br>
<font>Ninja</font><br>
</font></span></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font><br>
</font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font><br>
<br>
<br>
<br>
<br>
</div>
<div> <br>
</div>
<div style="clear:both"><br>
</div>
</div>
</div>
</font>
</div>
</div>
</font></font>
</div>
</div>
</font></font><br>_______________________________________________<br>
fieldtrip mailing list<br>
<a href="mailto:fieldtrip@donders.ru.nl">fieldtrip@donders.ru.nl</a><br>
<a href="http://mailman.science.ru.nl/mailman/listinfo/fieldtrip" target="_blank">http://mailman.science.ru.nl/mailman/listinfo/fieldtrip</a><br></blockquote></div><br></div>