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<div>Thank you all for your responses. As many people had suggested, we are already in the process of having several of the systems demoed, or visiting sites with the systems, but had wanted to check if there were outstanding issues or general consensuses regarding
one active electrode system over another. Again, we appreciate everyone's input. </div>
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<div>Best,</div>
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<div>Jason</div>
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<div>Jason M Cowell, Ph.D.</div>
<div>Postdoctoral Scholar</div>
<div>Social Cognitive Neuroscience Lab</div>
<div>University of Chicago</div>
<div>cowell@uchicago.edu</div>
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<span style="font-weight:bold">From: </span>Alex Svojanovsky <<a href="mailto:Alex.Svojanovsky@brainproducts.com">Alex.Svojanovsky@brainproducts.com</a>><br>
<span style="font-weight:bold">Date: </span>Sun, 11 Nov 2012 13:13:15 +0000<br>
<span style="font-weight:bold">To: </span>Jason Cowell <<a href="mailto:cowell@uchicago.edu">cowell@uchicago.edu</a>><br>
<span style="font-weight:bold">Cc: </span>"<a href="mailto:eeglablist@sccn.ucsd.edu">eeglablist@sccn.ucsd.edu</a>" <<a href="mailto:eeglablist@sccn.ucsd.edu">eeglablist@sccn.ucsd.edu</a>><br>
<span style="font-weight:bold">Subject: </span>AW: [Eeglablist] has anyone used an actiCHamp and an ActiveTwo?<br>
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<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">Since this post is about our products and the initial question has not completely been answered I would like to add some missing information
as well as to clarify some possible misunderstandings.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">“</span><span lang="EN-US" style="color:black">We are comparing both and are interested in the quality of these data, particularly in
noise issues. Are either of the systems more compatible with EEGLAB?”</span><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); "><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">Both systems are compatible with EEGLAB.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">The Biosemi system uses a LABVIEW based software. If you got LABVIEW (or just buy it) you may adopt the software upon your needs.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">The Brain Products actichamp uses the Pycorder. It is an open source software written in python which may be adopted as well.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">In EEGLAB choose the correct format when importing the data.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">The internal noise (amplifier noise) is quite similar for both systems as well as pricing. Please compare here:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); "><a href="http://www.biosemi.com/activetwo_full_specs.htm">http://www.biosemi.com/activetwo_full_specs.htm</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); "><a href="http://www.brainvision.com/files/actiCHamp-PyCorder-Flyer_US.pdf">http://www.brainvision.com/files/actiCHamp-PyCorder-Flyer_US.pdf</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); "><a href="http://www.brainproducts.com/productdetails.php?id=42">http://www.brainproducts.com/productdetails.php?id=42</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">Well, misusing or misunderstanding a system technically will relate in wrong suggestions. So you may see noisy actichamp as well as noisy
active II data. It depends on the recording environment,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">electrode impedances and other aspects. At least the technical information you can find in the web (including pricing) is quite similar.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">It may be hard to find somebody with a longer experience in using both systems because the active II is around for some time and the actiChamp
is a quite new system.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">Let me comment on some of the statements in this thread:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">ActiCAP is not the actichamp, it is an electrode cap with active electrodes which you may connect to many available amplifiers from different
manufacturers. The initial reason to develop it was the intention to offer a cap<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">which lets you kind of upgrade your existing amplifier (e.g. Neuroscan) to an active electrode system without the need to purchase a complete
new system (and then to modify your whole setup).<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">A 128channel actiCAP can of course be used with just 64 channels, just connect 64 electrodes, that’s it.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">The intended preparation is also slightly different from what you can read below. Biosemi electrodes have to be inserted after you lower
impedances by inserting gel. Brain Products active electrodes (actichamp or actiCAP)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">can be connected in the same way but you could also ask your volunteers beforehand (when you schedule your study) which head circumference
they got and prepare the whole cap before they arrive. Then you mount the cap<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">and insert the gel through the slits in the already inserted electrodes. You may compare yourself which method is faster or “the preferred
one” in your lab.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">The electrodes are bigger, correct. Our electrodes contain an additional circuit to measure impedances and a 3 color LED which indicates
the impedance level by the color. Advantage/disadvantage – your choice…<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">Well, when selecting a system for the next couple of years, other aspects should also be taken into account like repair issues, service,
support etc…<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">Ask users about broken electrodes, repair time, replacement, support, etc.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">You do not only select a system, you also choose to stay with a manufacturer for some years so choose the best one for you.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">Source localization:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">When planning an experiment one should browse through publications beforehand to get a feeling about what is the common practice.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">If the decision is to use less than 64 channels (in this case) one should not be surprised that reviewers may need some good explanation
for it.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">Maybe this (interesting) topic should be closed here and a new thread should be opened because it has nothing to do with the initial question.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">Hope I could add some value to this topic.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); ">Alex<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(31, 73, 125); "><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size: 10pt; font-family: Tahoma, sans-serif; ">Von:</span></b><span style="font-size: 10pt; font-family: Tahoma, sans-serif; ">
<a href="mailto:eeglablist-bounces@sccn.ucsd.edu">eeglablist-bounces@sccn.ucsd.edu</a> [<a href="mailto:eeglablist-bounces@sccn.ucsd.edu">mailto:eeglablist-bounces@sccn.ucsd.edu</a>]
<b>Im Auftrag von </b>Dimitrijevic, Andrew<br>
<b>Gesendet:</b> Freitag, 9. November 2012 13:49<br>
<b>An:</b> Arnaud Delorme; Patrick Simen<br>
<b>Cc:</b> <a href="mailto:eeglablist@sccn.ucsd.edu">eeglablist@sccn.ucsd.edu</a><br>
<b>Betreff:</b> Re: [Eeglablist] has anyone used an actiCHamp and an ActiveTwo?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size: 10pt; font-family: Tahoma, sans-serif; color: black; ">Can't comment on 128 vs 64 ... but I have been using the Brain Products ActiChamp 64-channel system for about a year now. Things
are great compared to a passive electrode system. We've been using a mannequin head to the mount the electrodes and then place on the subject. This has been fine since, the subject can read and fill out the IRB forms while you're placing the electrodes on
the mannequin.<br>
<br>
In terms of cost .. the Brain Products system was cheaper than BioSemi when I was searching around... I was choosing between BioSemi and BrainProducts.<br>
<br>
I remember reading Pascual-Marqui's dipole error localization for 64 electrodes and above ... the error curve saturates near ~70 electrodes for a single "epileptic dipole" near the surface. This may not be case for other ERPs, and this may relate to Arnaud's
comment.<br>
<br>
Jason ... I have a friend who recently purchased a 256 BP actichamp system .... I can put you in contact with him<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10pt; font-family: Tahoma, sans-serif; color: black; "><o:p> </o:p></span></p>
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<pre><span style="font-family: Tahoma, sans-serif; color: black; ">----------------------------------<o:p></o:p></span></pre>
<pre><span style="font-family: Tahoma, sans-serif; color: black; ">Andrew Dimitrijevic PhD<o:p></o:p></span></pre>
<pre><span style="font-family: Tahoma, sans-serif; color: black; ">Assistant Professor<o:p></o:p></span></pre>
<pre><span style="font-family: Tahoma, sans-serif; color: black; ">Communication Sciences Research Center<o:p></o:p></span></pre>
<pre><span style="font-family: Tahoma, sans-serif; color: black; "><a href="https://csrc.cchmc.org/">https://csrc.cchmc.org/</a><o:p></o:p></span></pre>
<pre><span style="font-family: Tahoma, sans-serif; color: black; ">Cincinnati Children's Hospital<o:p></o:p></span></pre>
<pre><span style="font-family: Tahoma, sans-serif; color: black; ">Department of Otolaryngology, University of Cincinnati<o:p></o:p></span></pre>
<pre><span style="font-family: Tahoma, sans-serif; color: black; ">3333 Burnet Ave. - S1.313<o:p></o:p></span></pre>
<pre><span style="font-family: Tahoma, sans-serif; color: black; ">MLC 15008<o:p></o:p></span></pre>
<pre><span style="font-family: Tahoma, sans-serif; color: black; ">Cincinnati, OH 45229-3026<o:p></o:p></span></pre>
<pre><span style="font-family: Tahoma, sans-serif; color: black; ">tel. 513.636.3469<o:p></o:p></span></pre>
<pre><span style="font-family: Tahoma, sans-serif; color: black; "><a href="mailto:andrew.dimitrijevic@cchmc.org">andrew.dimitrijevic@cchmc.org</a><br><a href="http://csrc.cchmc.org/andrew-dimitrijevic">http://csrc.cchmc.org/andrew-dimitrijevic</a> </span><span style="color:black"><o:p></o:p></span></pre>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size: 10pt; font-family: Tahoma, sans-serif; color: black; ">From:</span></b><span style="font-size: 10pt; font-family: Tahoma, sans-serif; color: black; "><a href="mailto:eeglablist-bounces@sccn.ucsd.edu">eeglablist-bounces@sccn.ucsd.edu</a>
[<a href="mailto:eeglablist-bounces@sccn.ucsd.edu">eeglablist-bounces@sccn.ucsd.edu</a>] on behalf of Arnaud Delorme [<a href="mailto:arno@ucsd.edu">arno@ucsd.edu</a>]<br>
<b>Sent:</b> Thursday, November 08, 2012 9:16 PM<br>
<b>To:</b> Patrick Simen<br>
<b>Cc:</b> <a href="mailto:eeglablist@sccn.ucsd.edu">eeglablist@sccn.ucsd.edu</a><br>
<b>Subject:</b> Re: [Eeglablist] has anyone used an actiCHamp and an ActiveTwo?</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">I disagree with Baris and Patrick. 128-channels is better than 64 in many ways. I had done some testing on source localization (comparing dipole localization error from 256 (ground truth) down to 19 electrodes)
and below 72 channels, the error starts to increase (not published unfortunately).
<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:black">Only record with 64 channels if you do not have the choice. If you are planning to scan electrode positions, use 128. If you are planning to coregister with the subject's MRI, definitely use 128.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:black">In choosing between Biosemi and Brainproduct, Biosemi systems are less expensive than Brainproduct. However, with Biosemi, you cannot check electrode impedances. If you have the funds, you might want to get the Brainproduct
system. If your funds are limited, you might want to get Biosemi. And remember there is also Neuroscan, EGI, Ant and Guger Technologies who all offer decent products as well.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:black">Best,<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="color:black">Arno<o:p></o:p></span></p>
</div>
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<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<div>
<div>
<p class="MsoNormal"><span style="color:black">On 8 Nov 2012, at 05:02, Patrick Simen wrote:<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="color:black"><br>
<br>
<o:p></o:p></span></p>
<div>
<p class="MsoNormal"><span style="color:black">I only have experience with ActiCHamp, so it may be true that BioSemi is better.
<o:p></o:p></span></p>
<div>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="color:black">However, I just wanted to say that I haven't found it at all difficult to reduce impedance with the BrainProducts system. It also didn't feel uncomfortable to me when I wore the cap several times and had the electrodes
inserted by students (nor when I inserted them myself -- it was easy enough that I could prep myself completely and quickly without assistance from anybody else -- I just needed a handheld mirror to see the occipital electrodes). <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="color:black">The only thing I really noticed was that reducing impedance was far (!!) easier and more comfortable than the usual process with passive-electrode caps in my previous lab. But that would probably be true with any
active electrode cap, I guess.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="color:black">Incidentally, an engineer at Brain Products also told me something that agrees with what Baris says below: there's not much point in going beyond 64 electrodes. <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="color:black">Best,<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="color:black">Pat.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
</div>
<div>
<div>
<p class="MsoNormal"><span style="color:black">On Nov 7, 2012, at 11:10 PM, Baris Demiral wrote:<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="color:black"><br>
<br>
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Yes I have experience with both. Use BioSemi. Here is my reasoning:
<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="color:black">I used full BioSemi Active2 system (cap+amplifier+LabView+response bix etc.) Electrodes are easy to insert, small, easy to reduce impedance, comfortable. You put the gel before the electrodes are placed.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="color:black">I used BProduct Active electrodes with Neuroscan amplifier+electrode box. Electrodes are very large, not easy to place the elctrodes on the cap, subjects feel discomfort. In order to reduce this effect you may
need to place the electordes on the manican before you put it on the subject which is weird. Since you will have 128 electrodes !! Also, you ned to insert the gel after you put the electrodes through a small opening, which makes impedance reduction relatively
hard to obtain.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="color:black">Kinking problem is likely to occur due to the difficulty of placing the electrodes.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="color:black">Buy BioSemi. even 64 channel is fine for many applications and source localization. 128 too much and not very necessary (read some papers related to source localization, you will notice that after 60 channels quality
does not change much). Kinking proble is likely to occur due to the orientation of the cable placed initially in the beginning. <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="color:black">Feel free to call me if you need further help. But, I would suggest (if you are going to pay a lot of money in this business) go and observe the systems in the labs live.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="color:black">Baris<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="color:black"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span style="color:black">On Fri, Nov 2, 2012 at 11:42 AM, Jason M Cowell <<a href="mailto:cowell@uchicago.edu" target="_blank">cowell@uchicago.edu</a>> wrote:<o:p></o:p></span></p>
<div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="color:black">Hello,<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="color:black">Our lab is presently in the process of acquiring several active 128- electrode systems. Does anyone have experience with both the Brain Products
actiCHamp and the BioSemi ActiveTwo? We are comparing both and are interested in the quality of these data, particularly in noise issues. Are either of the systems more compatible with EEGLAB? Any help or experience, particularly using the actiCHamp would
be greatly appreciated.<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="color:black">Jason<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="color:black">Jason M Cowell, Ph.D.<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="color:black">Postdoctoral Scholar<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="color:black">Social Cognitive Neuroscience Lab<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="color:black">University of Chicago<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="color:black">5848 S. University Ave.<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="color:black">Chicago, IL 60637<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="color:black"> <o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><span style="color:black"><br>
_______________________________________________<br>
Eeglablist page: <a href="http://sccn.ucsd.edu/eeglab/eeglabmail.html" target="_blank">
http://sccn.ucsd.edu/eeglab/eeglabmail.html</a><br>
To unsubscribe, send an empty email to <a href="mailto:eeglablist-unsubscribe@sccn.ucsd.edu" target="_blank">
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eeglablist-request@sccn.ucsd.edu</a><o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="color:black"><br>
<br clear="all">
<o:p></o:p></span></p>
<div>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
</div>
<p class="MsoNormal"><span style="color:black">-- <br>
S. Baris Demiral<br>
NIH/NIDCD<br>
10 Center Drive<br>
Building 10, 5C410<br>
Bethesda, 20892<br>
MD<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="color:black">_______________________________________________<br>
Eeglablist page: <a href="http://sccn.ucsd.edu/eeglab/eeglabmail.html" target="_blank">
http://sccn.ucsd.edu/eeglab/eeglabmail.html</a><br>
To unsubscribe, send an empty email to <a href="mailto:eeglablist-unsubscribe@sccn.ucsd.edu" target="_blank">
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eeglablist-request@sccn.ucsd.edu</a><o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<div>
<div>
<div>
<p class="MsoNormal"><span style="font-size: 13.5pt; font-family: Helvetica, sans-serif; color: black; "><br>
<span class="apple-style-span">Patrick Simen, Ph.D.</span><br>
<span class="apple-style-span">Assistant Professor, </span>Neuroscience Department<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span class="apple-style-span"><span style="font-size: 13.5pt; font-family: Helvetica, sans-serif; color: black; ">Oberlin College</span></span><span style="font-size: 13.5pt; font-family: Helvetica, sans-serif; color: black; "><br>
<span class="apple-style-span"><a href="mailto:psimen@oberlin.edu" target="_blank">psimen@oberlin.edu</a></span><br>
<span class="apple-style-span"><a href="http://www.oberlin.edu/faculty/psimen" target="_blank">www.oberlin.edu/faculty/psimen</a></span><br>
<br>
<br>
<o:p></o:p></span></p>
</div>
</div>
</div>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
</div>
<p class="MsoNormal"><span style="color:black">_______________________________________________<br>
Eeglablist page: <a href="http://sccn.ucsd.edu/eeglab/eeglabmail.html" target="_blank">
http://sccn.ucsd.edu/eeglab/eeglabmail.html</a><br>
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eeglablist-request@sccn.ucsd.edu</a><o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
</div>
</div>
</div>
</div>
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