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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I placed a request for information regarding EEG amplifiers
a couple weeks ago…I want to thank everyone for their responses. I have
compiled the responses and am sending it to the list in case there are others
out there with the same questions. Again thanks for the responses,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Jamie<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi all –<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I am looking into buying an EEG system for research looking
at cortical activity associated with motor behavior. I’d love to
find a system that would allow me to collect EEG, and both surface and
intramuscular EMG. It should also allow for synchronization to other
behavioral system (force and position trackers). I have had some
experience with Neuroscan (about 4 years ago) and had some issues with it.
I was wondering what systems are being used out there and whether I could
get some pros and cons about them.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><br>
Jamie<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Dear Jamie,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I was informed that you are looking for a biosignal
amplifier to measure EMG and EEG activity together with position and behavioral
data. My company g.tec medical engineering, located in <st1:place w:st="on"><st1:country-region
w:st="on">Austria</st1:country-region></st1:place>, has equipment which runs
under MATLAB and Simulink. Therefore it is quite easy to integrate other
devices. I will be happy to send you further information and to discuss with
you the application of the devices.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Best regards<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Christoph<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Dear Jamie,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I monitor EEGlablist server and I saw your query on EEG
amplifiers. I work with Electrical Geodesics, Inc. (EGI), and we are a world
leader in manufacturing Dense Array EEG Systems. You can visit us at <a
href="http://www.egi.com/" title="http://www.egi.com/">www.egi.com</a><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>For your immediate review, I attach our product flyer for
the new Geodesic EEG System 300, which can be configured for 32, 64, 128 and
256 channels of EEG. EGI’s patented HydroCel Geodesic Sensor Nets allow
you to record 128 channels in less than 5 minutes. There is no scalp abrasion
or gel application! <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>In your email, you also mention that you would like to
record other physiological measures apart from EEGs. May I ask if you would be
using EEGlab to analyze your non-EEG data? Also, how many channels of EEG v/s
non-EEG you wish to record?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Currently our Net Station software (acquisition and analysis
software) can not handle non-EEG channels; however, if you are using some other
software then you can export raw data from our software to say, Matlab and
other softwares.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>By the way, do you know people from Kinesiology Department
at <st1:place w:st="on"><st1:PlaceType w:st="on">University</st1:PlaceType> of <st1:PlaceName
w:st="on">Georgia</st1:PlaceName></st1:place>? I ask this because they are
using EGI’s 256 channel system and have come up with some interesting
data.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Best regards,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Viral<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Jamie,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> We have a system from Sensorium
http://www.sensoriuminc.com/ and works perfect, we use it to run EEG and EMG
(surface) simultaneously with out any issue.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> Let me know if you need anything
else.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> Rafael Escobedo<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Hi, Jamie. BioSemi's ActiveTwo
system can be equipped with EEG, sEMG and buffered inputs with spring contacts
for intramuscular fine wire electrodes. The acquisition software is
open-source LabVIEW and the data file format (BDF, a 24-bit version of EDF) is
supported by EEGLAB / BIOSIG. My company sells and supports
ActiveTwo in the <st1:country-region w:st="on">US</st1:country-region> and <st1:country-region
w:st="on"><st1:place w:st="on">Canada</st1:place></st1:country-region>. I
can provide a list of the pros for ActiveTwo and cons for other brands, but I
should probably do that off-line. Let me know if you are interested to
know more.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Best regards,</span></font><o:p></o:p></p>
<p><font size=2 face="Times New Roman"><span style='font-size:10.0pt'><!-- Converted from text/plain format -->Lloyd
Smith</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Neuroscan SynAmps 1 works fine for me,
since it can easily do 20kHz sampling rate and the data format is easily
accessible. The SynAmps2 might even have some advantages (channel number, s/n
ratio, active noise cancellation). The SynAmps2 does not supply
analog output though.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>If you need something cheaper, you could
also go for BrainVision, a German product.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Best,</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Johannes</span></font><o:p></o:p></p>
<p><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>Dear
Jamie, receiving the EEGlab digest I have found your question...Well: no, at
the moment I have no answer and I am very busy with other problems, but as
I asked myself the same question you wrote about, few years ago, I am sending
you this e-mail. For many years I have been a professional dancer and at the
end of the last...millennium I began again to look at the connections between
dance & newtech (I wrote an eight-pages article for the First Monaco Forum,
in 2000...for the Forum: see an example here: <a
href="http://portal.unesco.org/culture/fr/ev.php-URL_ID=32305&URL_DO=DO_TOPIC&URL_SECTION=201.html"
title="http://portal.unesco.org/culture/fr/ev.php-URL_ID=32305&URL_DO=DO_TOPIC&URL_SECTION=201.html">http://portal.unesco.org/culture/fr/ev.php-URL_ID=32305&URL_DO=DO_TOPIC&URL_SECTION=201.html</a> )...and I
asked mysel some questions you probably are asking yourself! Next year, if
possible, I will go on with a little project concerning "trance" and
movement, may be using EEGlab...If I will have any news concerning your
needings I will send some news!<br>
Best wishes for your researches!<br>
Giorgio<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
lang=NL style='font-size:12.0pt;color:black'>Hi,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
lang=NL style='font-size:12.0pt;color:black'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
lang=EN-GB style='font-size:12.0pt;color:black'>What are the “hard”
criteria for you ,like number of channels, sampling rate?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
lang=EN-GB style='font-size:12.0pt;color:black'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
lang=EN-GB style='font-size:12.0pt;color:black'>Be sure to have a look at
Brainproducts. Amplifiers are modular (Brainamp) 32 ch. Referential or 8
bipolar or 8bipolar + 8 Aux/sensor, 16 bit ttl trigger input etc. Specially for
research. Website <a href="http://www.brainproducts.com/"
title="http://www.brainproducts.com/">http://www.brainproducts.com</a> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
lang=EN-GB style='font-size:12.0pt;color:black'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
lang=EN-GB style='font-size:12.0pt;color:black'>Regards,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
lang=EN-GB style='font-size:12.0pt;color:black'>Harm-jan<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>Hello Jamie, <o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>look at Biosemi site. They
have "active" electrodes which preamplify the EEG signal on scalp and
reduce noise. They have 8 EMG channels and 3 additional inputs for measuring
other variables, like position trackers (inputs have power supply). There is
also the Advanced Neural Technology system which comes with a software for
various signal processing. It is convenient for combination with TCM. It has a
shielding of each electrode so 50 Hz is suppressed. Biosemi can have up to 256
electrodes and the other system can have at least 128 electrodes.<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>However none of the systems
has a hardware manual....but I think that both have representatives in the <st1:country-region
w:st="on"><st1:place w:st="on">USA</st1:place></st1:country-region>. ANT
promises to come and teach you how to use the system. Biosemi have a good
customer support on the phone and email.<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>We have Biosemi and use EEG
and EMG. It works fine but I had to program myself a protocol (in C) for
sending markers that were event driven (I work on BCI). You need the LabView to
make your additional software for it, especially if you want to run it in on-line
experiments. My colleagues are working on the on-line data collection and
further processing in Matlab using C instead.<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>Hope this help,<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>Greetings,<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>Dr Aleksandra Vuckovic<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>In our lab we use both neuroscan and biosemi. Biosemi is newer to
us, and in terms of time to set up the cap, it is much faster and we get lots
of decent quality data. However, our lack of experience with it makes
troubleshooting sometimes difficult, and the electrodes themselves are a bit
fragile. However, if you are using it exclusively or training everyone
who uses it, you shouldn't have too much to worry about. And, having
my head scraped with all different sorts of caps, I can say that the
biosemi cap is the most comfortable and requires the least abrasion.<br>
<br>
enjoy the hunt!<br>
Brian</span></font><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p></o:p></span></font></p>
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