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<p style="margin-top:0;margin-bottom:0">Hello fieldtrip community,</p>
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<p style="margin-top:0;margin-bottom:0">I have a project with a lot of source analysis of EEG data. I'm using ft_sourceanalysis and ft_sourceplot. I would like to add standard (e.g., Colin 27) MRI slices to these images as an overlay (underlay?) for reference.
Is there a way to do this? How do I align the MRI with my source space?</p>
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<p style="margin-top:0;margin-bottom:0">Example code for ft_sourceanalysis and ft_sourceplot are provided below my signature in case you need the reference.<br>
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<p style="margin-top:0;margin-bottom:0">Thank you,</p>
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<p style="margin-top:0;margin-bottom:0"><span style="font-size:12pt;" id="divtagdefaultwrapper"></span></p>
<div style="margin-top:0;margin-bottom:0;">Lindsey Tate</div>
<div style="margin-top:0;margin-bottom:0;">PhD Candidate</div>
<div style="margin-top:0;margin-bottom:0;">University of Oklahoma</div>
<div style="margin-top:0;margin-bottom:0;">lindseyrtate@ou.edu </div>
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<p style="margin-top:0;margin-bottom:0">///</p>
<p style="margin-top:0;margin-bottom:0">%baseline period source analysis <br>
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<div style="margin-top:0;margin-bottom:0;">cfg = [];</div>
<div style="margin-top:0;margin-bottom:0;">cfg.elec = elec ; <br>
</div>
<div style="margin-top:0;margin-bottom:0;">cfg.method = 'dics';</div>
<div style="margin-top:0;margin-bottom:0;">cfg.frequency = 25 ; <br>
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<div style="margin-top:0;margin-bottom:0;">cfg.grid = grid; <br>
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<div style="margin-top:0;margin-bottom:0;">cfg.headmodel = headmodel; <br>
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<div style="margin-top:0;margin-bottom:0;">cfg.dics.projectnoise = 'yes';</div>
<div style="margin-top:0;margin-bottom:0;">cfg.dics.lambda = 0;</div>
<div style="margin-top:0;margin-bottom:0;">cfg.latency = -0.7490 ; <br>
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<div style="margin-top:0;margin-bottom:0;">[presource25] = ft_sourceanalysis(cfg, prefreq25) %from ft_freqanalysis</div>
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<div style="margin-top:0;margin-bottom:0;">%same is done for a post-stimulus period, called pmsource25; code omitted for brevity</div>
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<div style="margin-top:0;margin-bottom:0;">%difference between pre- and post-stimulus periods</div>
<div style="margin-top:0;margin-bottom:0;">source25diff = pmsource25 ; <br>
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<div style="margin-top:0;margin-bottom:0;">source25diff.avg.pow = (pmsource25.avg.pow - presource25.avg.pow) ./ presource25.avg.pow;<br>
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<div style="margin-top:0;margin-bottom:0;">%interpolate the difference between pre- and post-stimulus periods<br>
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<div style="margin-top:0;margin-bottom:0;">cfg = []; <br>
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<div style="margin-top:0;margin-bottom:0;">cfg.downsample = 2; <br>
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<div style="margin-top:0;margin-bottom:0;">cfg.parameter = 'avg.pow';</div>
<div style="margin-top:0;margin-bottom:0;">source25DiffInt = ft_sourceinterpolate(cfg, source25diff, grid);</div>
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<div style="margin-top:0;margin-bottom:0;">%plot</div>
<div style="margin-top:0;margin-bottom:0;">cfg = [];</div>
<div style="margin-top:0;margin-bottom:0;">cfg.method = 'slice';</div>
<div style="margin-top:0;margin-bottom:0;">cfg.funparameter = 'avg.pow';</div>
<div style="margin-top:0;margin-bottom:0;">cfg.maskparameter = cfg.funparameter; <br>
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<div style="margin-top:0;margin-bottom:0;">cfg.funcolorlim = [-1 2];</div>
<div style="margin-top:0;margin-bottom:0;">cfg.opacitylim = [-5 1];</div>
<div style="margin-top:0;margin-bottom:0;">cfg.opacitymap = 'rampup';</div>
<div style="margin-top:0;margin-bottom:0;">ft_sourceplot(cfg, source25DiffInt); <br>
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