<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
span.E-MailFormatvorlage17
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 2.0cm 70.85pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="DE" link="#0563C1" vlink="#954F72">
<div class="WordSection1">
<p class="MsoNormal"><span lang="EN-GB">Dear FieldTrip Community,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">I'm currently working on a project where I'm interested in exploring single channel differences between two conditions using cluster-based permutation tests. My aim is to only identify significant temporal clusters,
without considering spatial clusters across multiple channels. I've configured my analysis as follows:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">cfg_stats = [];<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">cfg_stats.neighbours = [];<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">cfg_stats.channel = 'ECG';<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">cfg_stats.latency = time_stat;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">cfg_stats.avgovertime = 'no';<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">cfg_stats.minnbchan = 0;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">cfg_stats.parameter = 'avg';<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">cfg_stats.correctm = 'cluster';<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">cfg_stats.method = 'montecarlo';<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">cfg_stats.statistic = 'depsamplesT';<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">cfg_stats.clusterstatistic = 'maxsum';<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">cfg_stats.alpha = 0.05;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">cfg_stats.correcttail = 'prob';<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">cfg_stats.clustertail = 0;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">cfg_stats.clusteralpha = 0.025;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">cfg_stats.numrandomization = 1000;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Nsubj = length(reference);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">design = zeros(2, Nsubj*2);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">design(1,:) = [1:Nsubj 1:Nsubj];<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">design(2,:) = [ones(1,Nsubj) ones(1,Nsubj)*2];<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">cfg.design = design;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">cfg.uvar = 1;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">cfg.ivar = 2;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">cfg_stats.design = design;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">cfg_stats.uvar = 1;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">cfg_stats.ivar = 2;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">stat = ft_timelockstatistics(cfg_stats, reference{:}, target{:});<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">My question is whether this approach of focusing solely on temporal clusters within a single channel is justifiable and valid?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Additionally, I am curious about the comparability of the clusters found solely in the time domain with those identified through both time and space domain analyses. Does focusing only on the time domain potentially simplify
the detection of significant clusters? In other words, are clusters which are only identified in time more prone to being detected due to the reduced complexity of the analysis, or does this approach yield results that are comparable in validity to those obtained
through spatial-temporal cluster analyses?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Further, if there are any suggestions for improving this configuration or if there are alternative approaches that I should consider, I would greatly appreciate your input.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Thank you for your time and assistance.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">All the best<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Pia<o:p></o:p></span></p>
</div>
</body>
</html>