<div dir="ltr">Hi Lampros,<div><br></div><div>I'm not aware of an implementation within EEGLAB, but it is straightforward to do by hand. You would just need to identify the sample[s] of interest on each trial and construct a model using trials and subjects as random effects in addition to whatever fixed effects are associated with those trials. There are several different ways you could handle multiple comparisons across channels and timepoints; you could average across several channels and/or timepoints that were of interest a priori, or you could include channel/region as a fixed effect in the analysis as is typically done with ANOVA on EEG data, or you could do a mixed model at each {channel,timepoint} data point and use the model coefficients to do spatiotemporal clustering as described in Maris & Oostenveld (2007, Journal of Neuroscience Methods).</div><div><br></div><div>Best,</div><div>Steve</div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><div dir="ltr"><div><br><br></div>Stephen Politzer-Ahles<br>New York University, Abu Dhabi<br>Neuroscience of Language Lab<br><a href="http://www.nyu.edu/projects/politzer-ahles/" target="_blank">http://www.nyu.edu/projects/politzer-ahles/</a><br></div></div></div>
<br><div class="gmail_quote">On Tue, Jun 16, 2015 at 3:44 PM, Lampros Perogamvros <span dir="ltr"><<a href="mailto:lambros.pero@gmail.com" target="_blank">lambros.pero@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi all,<div><br></div><div>We were just wondering whether you guys ever implemented a <span>mixed</span> <span>model</span> analysis for eeg data, and if so how you did it/setup the <span>model</span>? This model would be ideal when there are unequal numbers of observations per condition, and
sometimes 0 observations for a condition for a given subject. This <span>model</span>
would allow us to use all the data and do statistical tests on the
individual observations rather than just averaging over all the observations
for each subject, so it would be much more powerful. Are you aware of any such model for EEG?<br><br></div><div>Thanks!<br></div><div>Lampros Perogamvros MD<br></div><div>University of Wisconsin <br></div></div>
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