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<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Dear Silvia,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Do I understand correctly that
<i>data_cue</i> is epoched, but not pre-processed?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">You can apply ft_rejectartifact after ft_redefinetrial. We usually pre-process continuous datasets and save the cfg of
this pre-processing (in the example below cfg_myartifactrejection). Only then we epoch the data and apply this artifactrejection.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Courier New";color:#1F497D;mso-fareast-language:EN-US">cfg=[];<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Courier New";color:#1F497D;mso-fareast-language:EN-US">cfg.trl=trl; # trl contains the trial definition of target-locked epochs<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Courier New";color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Courier New";color:#1F497D;mso-fareast-language:EN-US">data_target = ft_redefinetrial (cfg, data_cue)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Courier New";color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Courier New";color:#1F497D;mso-fareast-language:EN-US">cfg = [];<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Courier New";color:#1F497D;mso-fareast-language:EN-US">data_target_clean = ft_rejectartifact(cfg_myartifactrejection, data_target);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">I hope this helps…<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Best,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Christine<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="DE" style="font-size:11.0pt;font-family:"Calibri",sans-serif">Von:</span></b><span lang="DE" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> fieldtrip <fieldtrip-bounces@science.ru.nl>
<b>Im Auftrag von </b>Silvia Formica<br>
<b>Gesendet:</b> Montag, 26. November 2018 14:19<br>
<b>An:</b> fieldtrip@science.ru.nl<br>
<b>Betreff:</b> [FieldTrip] ft_redefinedata after pre-processing<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p><span style="font-family:"Calibri",sans-serif;color:black">Dear all,<o:p></o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black">I'm in need of suggestions on the correct analyses strategy for my data.<o:p></o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black">I have an experiment with a cue followed (after ~2 seconds) by a target.<o:p></o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black">I epoched the data cue-locked and pre-processed my dataset. In my preprocessing I'm downsampling, re-referencing, rejecting some trials, running ICA, etc etc.<o:p></o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black">My problem is that I would want to also epoch my data target-locked, but I want to do it after pre-processing the cue-locked dataset. This is because I want to exclude the same trials and apply exactly
the same corrections to the two different datasets.<o:p></o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black">I tried to use the function ft_redefinetrial, creating the new probe-locked trial definition and applying it to the cue-locked dataset.<o:p></o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black">cfg=[];<o:p></o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black">cfg.trl=trl; # trl contains the trial definition of target-locked epochs<o:p></o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black">data_target = ft_redefinetrial (cfg, data_cue)<o:p></o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black">But I do not obtain what I wished for, because I get a data_target dataset that doesn't account for the trial rejection I performed while pre-processing the cue-locked dataset.<o:p></o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black">So my questions are:<o:p></o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black">1) is it possible to achieve my goal?<o:p></o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black">2) If yes, what is the right strategy to do it?<o:p></o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black">Thanks for any input and suggestion!<o:p></o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black">Best,<o:p></o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black">Silvia<o:p></o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
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