<div dir="ltr"><div><div><div>Dear Imtiaz,<br><br></div>You can quantify the EEG using a NBT toolbox (see <a href="http://www.nbtwiki.net">www.nbtwiki.net</a>), which is also a plugin to EEGLAB. The NBT toolbox offers several ways of quantifying the EEG in both the spatial, temporal and spectral domain, you can also easily add your own algorithms.<br><br></div>Best wishes, and good luck with your research<br></div>Simon<br><div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr">--<br>Simon-Shlomo Poil, Dr.<br><span>LinkedIn profile: <a href="http://ch.linkedin.com/in/simonshlomopoil/" target="_blank">http://ch.linkedin.com/in/simonshlomopoil/</a></span><br><br>Need help with your EEG analysis? Outsource your EEG analysis to NBT Analytics: <a href="http://l.nbtwiki.net/1FrE4if" target="_blank">http://l.nbtwiki.net/1FrE4if</a><br><div><br>The Neurophysiological Biomarker Toolbox (NBT): <a href="http://www.nbtwiki.net" target="_blank">http://www.nbtwiki.net</a><br></div><br>My latest publications:<br>Subcortical Glutamate Mediates the Reduction of Short-Range Functional Connectivity with Age in a Developmental Cohort: <a href="http://l.nbtwiki.net/1LnYs92" target="_blank">http://l.nbtwiki.net/1LnYs92</a> <br><br>Integrative EEG biomarkers predict progression to Alzheimer's disease at the MCI stage: <a href="http://l.nbtwiki.net/19jMuy8" target="_blank">http://l.nbtwiki.net/19jMuy8</a><br><br></div></div></div></div></div>
<br><div class="gmail_quote">2015-06-29 23:42 GMT+02:00 Stephen Politzer-Ahles <span dir="ltr"><<a href="mailto:spa268@nyu.edu" target="_blank">spa268@nyu.edu</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div>Hello Imtiaz,<br>
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The data are in the field EEG.data; for instance, if you have epoched data for one participant then this field is a 3-dimensional matrix (channels x samples x trials). You can work directly with the raw numbers any way you see fit (for example, choosing a time
window and a subset of trials to average over if you want to statistically analyze mean amplitudes), directly in MATLAB or after exporting them into e.g. Excel or something like that; you can check the book by Luck (2005/2012) for a more detailed discussion
and recommendations about how to quantify ERP waveforms.<br>
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If you're working with multi-subject STUDY data and/or spectral data as well as spatiotemporal data, the underlying logic is similar---you can extract the numbers from the appropriate field of the MATLAB structure and manipulate them however you need.<br>
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I believe the ERPLAB toolbox and similar add-ons also provide a lot of built-in functions for data quantification, which you could explore.<br>
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Steve<br>
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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>
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<div class="gmail_quote"><div><div class="h5">On Mon, Jun 29, 2015 at 3:11 PM, Imtiaz SA <span dir="ltr">
<<a href="mailto:imtiaz1877@gmail.com" target="_blank">imtiaz1877@gmail.com</a>></span> wrote:<br>
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<div dir="ltr">Hello everyone,
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<div>I am new to eeglab and need to know if I can quantify eeg data. I can see it generates scalp distribution maps and spectra but can I get actual number data for those graphs? If yes, how?<br clear="all">
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<p style="margin-bottom:0.0001pt"><span lang="EN-US">Thanks and regards,</span></p>
<p style="margin-bottom:0.0001pt"><span lang="EN-US"> </span></p>
<p style="margin-bottom:0.0001pt"><b><span lang="EN-US">Imtiaz</span></b></p>
<p style="margin-bottom:0.0001pt"><span lang="EN-US">PhD Student</span></p>
<p style="margin-bottom:0.0001pt"><span lang="EN-US">Department of Computer Science</span></p>
<p style="margin-bottom:0.0001pt">The University of Texas at San Antonio</p>
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