<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Dear Elke and Jan-Mathijs,<div class=""><br class=""></div><div class="">Thank you for your answers. So indeed I now understand the problem, but I still have issues to solve that problem. It’s probably something simple to solve but I do not find it. Basically, I have now tried to use the ft_sourceinterpolate, as suggested. As far as I understand, this has to be done after the ft_sourceanalysis. However, I constantly have an issue with cfg_parameters, which should be the positions of the electrodes. I run the following code (full code below):</div><div class=""><br class=""></div><div class=""><div style="margin: 0px;" class=""><div style="font-size: 10px; font-family: Courier; margin: 0px;" class="">cfg = [];</div><div style="font-size: 10px; font-family: Courier; margin: 0px;" class="">cfg.parameter = <span style="color: #b245f3" class="">'elec.chanpos'</span>;</div><div style="font-size: 10px; font-family: Courier; margin: 0px;" class="">cfg.interpmethod = <span style="color: #b245f3" class="">'nearest'</span>;</div><div style="font-size: 10px; font-family: Courier; margin: 0px;" class="">interp = ft_sourceinterpolate(cfg, source_C_Shock, sourcemodel)</div><p style="font-size: 10px; margin: 0px; min-height: 12px;" class=""> <br class="webkit-block-placeholder"></p><div style="margin: 0px; min-height: 14px;" class=""><span style="font-size: 12px;" class="">I get the following error message: "</span><font color="#e32400" style="font-size: 12px;" class="">Reference to non-existent field 'elec’.</font><span style="font-size: 12px;" class=""> », which I do not get since I do have my ‘elec’ file which is indeed opened, with a .chanpos that contains the positions of the electrodes. </span></div></div></div><div class=""><br class=""></div><div class="">Perhaps I am doing something wrong with ft_sourceinterpolate. But in fact I am also worried about the fact that the file which results from the ft_sourceanalysis has lots of NaN (see screenshot in attachement) and I am not sure it should be the case or if I should have obtained full data in each case. From the tutorials, the source model have a .tri but I don’t have one in the source model I have created. Perhaps it may also be the source of the issue?</div><div class=""><br class=""></div><div class="">Thank you in advance for your time!</div><div class=""><br class=""></div><div class="">Emilie</div><div class=""><br class=""></div><div class=""><img height="577" width="970" apple-width="yes" apple-height="yes" apple-inline="yes" id="80311C58-D762-47A5-B7DC-208A3C5D30E4" src="cid:61A2ED64-D59B-4C41-838F-3BAB5278C828@home" class=""></div><div class=""><br class=""></div><div class=""><div style="margin: 0px; font-size: 10px; font-family: Courier; color: rgb(37, 153, 45);" class=""><br class=""></div><div style="margin: 0px; font-size: 10px; font-family: Courier; color: rgb(178, 69, 243);" class=""><span style="color: #000000" class="">load </span>biosemi64.mat</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">q=angles;</div><p style="margin: 0px; font-size: 10px; font-family: Courier; min-height: 12px;" class=""> <br class="webkit-block-placeholder"></p><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">ph = cell2mat(q(:,2));</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">th = cell2mat(q(:,3));</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">x = sin(ph*pi/180) .* cos(th*pi/180);</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">y = sin(ph*pi/180) .* sin(th*pi/180);</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">z = cos(ph*pi/180);</div><p style="margin: 0px; font-size: 10px; font-family: Courier; min-height: 12px;" class=""> <br class="webkit-block-placeholder"></p><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">plot3(x, y, z, <span style="color: #b245f3" class="">'.'</span>);</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">elec.label = q(:,1);</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">elec.pnt = [x y z];</div><p style="margin: 0px; font-size: 10px; font-family: Courier; min-height: 12px;" class=""> <br class="webkit-block-placeholder"></p><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg.sourcemodel.pos = elec.pnt;</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">sourcemodel = ft_prepare_sourcemodel(cfg);</div><p style="margin: 0px; font-size: 10px; font-family: Courier; min-height: 12px;" class=""> <br class="webkit-block-placeholder"></p><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">headmodel = ft_read_headmodel(<span style="color: #b245f3" class="">'headmodel/standard_bem.mat'</span>);</div><div style="margin: 0px; font-size: 10px; font-family: Courier; color: rgb(37, 153, 45);" class="">%electr_pos=ft_read_sens('Biosemi-Cap64.sfp');</div><p style="margin: 0px; font-size: 10px; font-family: Courier; color: rgb(37, 153, 45); min-height: 12px;" class=""> <br class="webkit-block-placeholder"></p><div style="margin: 0px; font-size: 10px; font-family: Courier; color: rgb(37, 153, 45);" class="">%% realign electrodes to headmodel</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg = [];</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg.method = <span style="color: #b245f3" class="">'interactive'</span>;</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg.elec = elec;</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg.headshape = headmodel.bnd(1); <span style="color: #25992d" class="">%1 = skin</span></div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">elec = ft_electroderealign(cfg);</div><p style="margin: 0px; font-size: 10px; font-family: Courier; min-height: 12px;" class=""> <br class="webkit-block-placeholder"></p><div style="margin: 0px; font-size: 10px; font-family: Courier; color: rgb(37, 153, 45);" class="">%save new electrodes</div><div style="margin: 0px; font-size: 10px; font-family: Courier; color: rgb(178, 69, 243);" class=""><span style="color: #000000" class="">save </span>elec64.mat<span style="color: #000000" class=""> </span>elec</div><p style="margin: 0px; font-size: 10px; font-family: Courier; color: rgb(178, 69, 243); min-height: 12px;" class=""> <br class="webkit-block-placeholder"></p><div style="margin: 0px; font-size: 10px; font-family: Courier; color: rgb(37, 153, 45);" class="">%ERPsAll.elec = ft_read_sens('Biosemi-Cap64.sfp');</div><p style="margin: 0px; font-size: 10px; font-family: Courier; color: rgb(37, 153, 45); min-height: 12px;" class=""> <br class="webkit-block-placeholder"></p><div style="margin: 0px; font-size: 10px; font-family: Courier; color: rgb(37, 153, 45);" class="">% Prepare leadfield</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg = [];</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg.elec = elec;</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg.headmodel = headmodel;</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg.reducerank = 3;</div><div style="margin: 0px; font-size: 10px; font-family: Courier; color: rgb(37, 153, 45);" class=""><span style="color: #000000" class="">cfg.resolution = 1; </span>% use a 3-D grid with a 1 cm resolution</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg.sourcemodel.unit = <span style="color: #b245f3" class="">'cm'</span>;</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg.channel ={<span style="color: #b245f3" class="">'all'</span>};</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">leadfield = ft_prepare_leadfield(cfg);</div><p style="margin: 0px; font-size: 10px; font-family: Courier; min-height: 12px;" class=""> </p><div style="margin: 0px; font-size: 10px; font-family: Courier; color: rgb(37, 153, 45);" class="">%% mne</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg = [];</div><div style="margin: 0px; font-size: 10px; font-family: Courier; color: rgb(37, 153, 45);" class=""><span style="color: #000000" class="">cfg.method = </span><span style="color: #b245f3" class="">'mne'</span><span style="color: #000000" class="">; </span>%pcc: partial cannonical correlation/coherence</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg.elec = elec; <span style="color: #25992d" class="">%grid.cfg.elec;%</span></div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg.headmodel = headmodel;</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg.grid = leadfield;</div><div style="margin: 0px; font-size: 10px; font-family: Courier; color: rgb(37, 153, 45);" class="">%cfg.sourcemodel = sourcemodel;</div><div style="margin: 0px; font-size: 10px; font-family: Courier; color: rgb(37, 153, 45);" class="">% cfg.channel ={'all'};%, '-spmnas', '-spmlpa', '-spmrpa'};</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg.mne.prewhiten = <span style="color: #b245f3" class="">'yes'</span>;</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg.mne.lambda = 3;</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg.mne.scalesourcecov = <span style="color: #b245f3" class="">'yes'</span>;</div><div style="margin: 0px; font-size: 10px; font-family: Courier; color: rgb(37, 153, 45);" class="">%cfg.reducerank = 2;</div><p style="margin: 0px; font-size: 10px; font-family: Courier; color: rgb(37, 153, 45); min-height: 12px;" class=""> <br class="webkit-block-placeholder"></p><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">source_C_Shock = ft_sourceanalysis(cfg, GA_C_Shock);</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">source_C_Noshock = ft_sourceanalysis(cfg, GA_C_NOshock);</div><div style="margin: 0px; font-size: 10px; font-family: Courier; color: rgb(37, 153, 45);" class=""><br class=""></div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg = [];</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg.parameter = <span style="color: #b245f3" class="">'elec.chanpos'</span>;</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg.interpmethod = <span style="color: #b245f3" class="">'nearest'</span>;</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">interp = ft_sourceinterpolate(cfg, source_C_Shock, sourcemodel)</div><p style="margin: 0px; font-size: 10px; font-family: Courier; min-height: 12px;" class=""> <br class="webkit-block-placeholder"></p><div style="margin: 0px; font-size: 10px; font-family: Courier; color: rgb(37, 153, 45);" class=""><br class=""></div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg = [];</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg.projectmom = <span style="color: #b245f3" class="">'yes'</span>;</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">sdShock = ft_sourcedescriptives(cfg,source_C_Shock);</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">sdNoShock = ft_sourcedescriptives(cfg,source_C_Noshock);</div><p style="margin: 0px; font-size: 10px; font-family: Courier; min-height: 12px;" class=""> <br class="webkit-block-placeholder"></p><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">sdDIFF = sdNoShock;</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">sdDIFF.avg.pow = sdNoShock.avg.pow - sdShock.avg.pow;</div><div style="margin: 0px; font-size: 10px; font-family: Courier; color: rgb(37, 153, 45);" class=""> </div><div style="margin: 0px; font-size: 10px; font-family: Courier; color: rgb(178, 69, 243);" class=""><span style="color: #000000" class="">save </span>sd<span style="color: #000000" class=""> </span>sdDIFF<span style="color: #000000" class="">;</span></div><p style="margin: 0px; font-size: 10px; font-family: Courier; min-height: 12px;" class=""> <br class="webkit-block-placeholder"></p><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg = [];</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">cfg.funparameter = <span style="color: #b245f3" class="">'pow'</span>;</div><div style="margin: 0px; font-size: 10px; font-family: Courier;" class="">ft_sourcemovie(cfg,sdDIFF);</div></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""><div apple-content-edited="true" class="">
<div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">---------------------------------------------<br class="">Emilie Caspar, Ph.D<br class=""> <br class="">CO3, Centre de Recherche Cognition et Neurosciences (CRCN), ULB </div><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Voice : +32 2 650 32 95 <br class="">mail : <a href="mailto:ecaspar@ulb.ac.be" class="">ecaspar@ulb.ac.be</a><br class="">office: DB10-138 </div><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><br class=""></div><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Social Brain Lab, Netherlands Institute for Neuroscience (NIN), KNAW<br class="">mail : <a href="mailto:e.caspar@nin.knaw.nl" class="">e.caspar@nin.knaw.nl</a><br class=""></div></div></div></div></div></div></div></div>
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<br class=""><div><blockquote type="cite" class=""><div class="">Le 31 mars 2020 à 12:02, Eelke Spaak <<a href="mailto:e.spaak@donders.ru.nl" class="">e.spaak@donders.ru.nl</a>> a écrit :</div><br class="Apple-interchange-newline"><div class="">Hi Emilie,<br class=""><br class="">To add to Jan-Mathijs' explanation of why this does not work: you can<br class="">use ft_sourceinterpolate to interpolate your volumetric source data<br class="">onto a surface, which you can then plot using ft_sourcemovie (or the<br class="">newer, though still somewhat experimental, ft_sourceplot_interactive).<br class=""><br class="">Best,<br class="">Eelke<br class=""><br class="">On Tue, 31 Mar 2020 at 11:07, Schoffelen, J.M. (Jan Mathijs)<br class=""><<a href="mailto:jan.schoffelen@donders.ru.nl" class="">jan.schoffelen@donders.ru.nl</a>> wrote:<br class=""><blockquote type="cite" class=""><br class="">Hi Emilie,<br class=""><br class="">ft_sourcemovie has been designed to operate on source level data that is defined on a cortical surface based source model.<br class="">The code you pasted in suggests that you used a 3-dimensional grid as a sourcemodel. So this is never going to work.<br class="">Apparently, you managed to fool the function by post-hoc including a so-called ’tri’ field, which is the hallmark that fieldtrip uses to determine whether the sourcemodel geometry was a mesh or not.<br class="">However, there is no relation whatsoever between the specified triangulation (which you took from the headmodel) and the dipole positions at which your source activity has been estimated.<br class=""><br class="">Best wishes,<br class="">Jan-Mathijs<br class=""><br class=""><br class="">On 31 Mar 2020, at 10:42, Emilie Caspar <<a href="mailto:ecaspar@ulb.ac.be" class="">ecaspar@ulb.ac.be</a>> wrote:<br class=""><br class="">Dear all,<br class=""><br class="">I am trying to compute a source reconstruction of different ERPs between two experimental conditions. Well, good news is that the script ‘works’, but the issue is that I am producing contemporary art instead of a brain with ft_sourcemovie (see figure in attachement). The headmodel I used is the standard one available for download. The leadfield I built seems to look like a brain with a correct positions of the electrodes (see also figure in attachement).<br class=""><br class="">I really have no cue about how I produced such output with ft_sourcemovie and what could possibly be the issue (code is below). If someone can help transforming this to a brain? ;-)<br class="">The only thing that differs (I think) from the tutorial is that I don’t have a headmodel.tri but rather a headmodel.bnd.tri. Don’t know if it makes any difference. Perhaps the sourcespace defined in the tutorial is something different?<br class=""><br class="">Thank you,<br class=""><br class="">Emilie<br class=""><br class=""><ft_sourcemovie.png><leadfield.png><ft_plot_mesh.png><br class=""><br class="">CODE<br class=""><br class="">q=biosim64;<br class="">ph = cell2mat(q(:,2));<br class="">th = cell2mat(q(:,3));<br class="">x = sin(ph*pi/180) .* cos(th*pi/180);<br class="">y = sin(ph*pi/180) .* sin(th*pi/180);<br class="">z = cos(ph*pi/180);<br class=""><br class="">plot3(x, y, z, '.');<br class="">elec.label = q(:,1);<br class="">elec.pnt = [x y z];<br class=""><br class="">cfg.sourcemodel.pos = elec.pnt;<br class="">sourcemodel = ft_prepare_sourcemodel(cfg);<br class=""><br class="">headmodel = ft_read_headmodel('headmodel/standard_bem.mat');<br class=""><br class="">% realign electrodes to headmodel<br class="">cfg = [];<br class="">cfg.method = 'interactive';<br class="">cfg.elec = elec;<br class="">cfg.headshape = headmodel.bnd(1); %1 = skin<br class="">elec = ft_electroderealign(cfg);<br class=""><br class="">%save new electrodes<br class="">save elec64.mat elec<br class=""><br class="">ERPsAll.elec = ft_read_sens('elec64.mat’);<br class=""><br class="">% Prepare leadfield<br class="">cfg = [];<br class="">cfg.elec = ERPsAll.elec;<br class="">cfg.vol = headmodel;<br class="">cfg.reducerank = 3;<br class="">cfg.grid.resolution = 1; % use a 3-D grid with a 1 cm resolution<br class="">cfg.grid.unit = 'cm';<br class="">cfg.channel ={'all'};<br class="">leadfield = ft_prepare_leadfield(cfg);<br class=""><br class=""><br class=""><br class="">%%mne<br class="">cfg = [];<br class="">cfg.method = 'mne'; %pcc: partial cannonical correlation/coherence<br class="">cfg.elec = ERPsAll.elec; %grid.cfg.elec;%<br class="">cfg.headmodel = headmodel;<br class="">cfg.grid = leadfield;<br class="">%cfg.sourcemodel = sourcemodel;<br class="">% cfg.channel ={'all'};%, '-spmnas', '-spmlpa', '-spmrpa'};<br class="">cfg.mne.prewhiten = 'yes';<br class="">cfg.mne.lambda = 3;<br class="">cfg.mne.scalesourcecov = 'yes';<br class="">%cfg.reducerank = 2;<br class=""><br class="">source_C_Shock = ft_sourceanalysis(cfg, GA_C_Shock);<br class="">source_C_Noshock = ft_sourceanalysis(cfg, GA_C_NOshock);<br class=""><br class="">save source_C_Shock.mat source_C_Shock<br class="">save source_C_Noshock.mat source_C_Noshock<br class=""><br class="">bnd.pos = headmodel.bnd.pos;<br class="">bnd.tri = headmodel.bnd.tri;<br class=""><br class="">m=source_C_Shock.avg.pow(:,450);<br class="">%timeN1 = [1232:1301];timeP3 = [1722:1927];timeeLPP = [1928:2356];timelLPP = [2357:2868];<br class="">ft_plot_mesh(bnd, 'vertexcolor', m);<br class="">view([180 0]); h = light; set(h, 'position', [0 1 0.2]); lighting gouraud; material dull<br class=""><br class="">cfg = [];<br class="">cfg.projectmom = 'yes';<br class="">sdShock = ft_sourcedescriptives(cfg,source_C_Shock);<br class="">sdNoShock = ft_sourcedescriptives(cfg,source_C_Noshock);<br class=""><br class="">sdDIFF = sdNoShock;<br class="">sdDIFF.avg.pow = sdNoShock.avg.pow - sdShock.avg.pow;<br class="">sdDIFF.tri = headmodel.bnd.tri;<br class=""><br class="">save sd sdDIFF;<br class=""><br class="">cfg = [];<br class="">cfg.funparameter = 'pow';<br class="">%cfg.method = 'surface';<br class="">ft_sourcemovie(cfg,sdDIFF);<br class=""><br class=""><br class="">---------------------------------------------<br class="">Emilie Caspar, Ph.D<br class=""><br class="">CO3, Centre de Recherche Cognition et Neurosciences (CRCN), ULB<br class="">Voice : +32 2 650 32 95<br class="">mail : <a href="mailto:ecaspar@ulb.ac.be" class="">ecaspar@ulb.ac.be</a><br class="">office: DB10-138<br class=""><br class="">Social Brain Lab, Netherlands Institute for Neuroscience (NIN), KNAW<br class="">mail : <a href="mailto:e.caspar@nin.knaw.nl" class="">e.caspar@nin.knaw.nl</a><br class=""><br class="">_______________________________________________<br class="">fieldtrip mailing list<br class=""><a href="https://mailman.science.ru.nl/mailman/listinfo/fieldtrip" class="">https://mailman.science.ru.nl/mailman/listinfo/fieldtrip</a><br class="">https://doi.org/10.1371/journal.pcbi.1002202<br class=""><br class=""><br class="">_______________________________________________<br class="">fieldtrip mailing list<br class="">https://mailman.science.ru.nl/mailman/listinfo/fieldtrip<br class="">https://doi.org/10.1371/journal.pcbi.1002202<br class=""></blockquote><br class="">_______________________________________________<br class="">fieldtrip mailing list<br class=""><a href="https://mailman.science.ru.nl/mailman/listinfo/fieldtrip" class="">https://mailman.science.ru.nl/mailman/listinfo/fieldtrip</a><br class="">https://doi.org/10.1371/journal.pcbi.1002202<br class=""></div></blockquote></div><br class=""></div></body></html>