<div dir="ltr">Hi Andrea<br><br>This electrode location could be made by using eeglab. Just open an higher channels reference than the one you have employed. Then remove the locations which you do not want, then reference them accordingly. Save this as .loc file for future use. <br>
<br><div class="gmail_quote">On Tue, May 8, 2012 at 2:20 AM, <span dir="ltr"><<a href="mailto:eeglablist-request@sccn.ucsd.edu" target="_blank">eeglablist-request@sccn.ucsd.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<br>Today's Topics:<br>
<br>
1. electrode location (Andrea Helo)<br>
2. Re: Automated way of placing events (Andrew Hill)<br>
3. STUDY design: spectrum negative power values<br>
(Christian Scharinger)<br>
4. Re: Automated way of placing events (Stephen Politzer-Ahles)<br>
5. channel spectra & maps (Schelenz, Patrick David)<br>
<br><br>---------- Forwarded message ----------<br>From: Andrea Helo <<a href="mailto:andreahelo@gmail.com" target="_blank">andreahelo@gmail.com</a>><br>To: <a href="mailto:eeglablist@sccn.ucsd.edu" target="_blank">eeglablist@sccn.ucsd.edu</a><br>
Cc: <br>Date: Mon, 7 May 2012 14:19:27 +0200<br>Subject: [Eeglablist] electrode location<br>
<pre><font size="4">Dear list, <br>I would like to find an electrode location data for Neuroscan SynAmps-2 128-channel cap <br>Please send me if anybody have it. <br>Thank you :)</font>
</pre><br clear="all"><br>-- <br>Andrea <br><br><br>
<br><br>---------- Forwarded message ----------<br>From: Andrew Hill <<a href="mailto:andrewhill@ucla.edu" target="_blank">andrewhill@ucla.edu</a>><br>To: Marco Montalto <<a href="mailto:montaltomarco@onvol.net" target="_blank">montaltomarco@onvol.net</a>><br>
Cc: <a href="mailto:eeglablist@sccn.ucsd.edu" target="_blank">eeglablist@sccn.ucsd.edu</a><br>Date: Sat, 5 May 2012 18:54:39 -0700<br>Subject: Re: [Eeglablist] Automated way of placing events<br><div style="word-wrap:break-word">
Marco,<div>
<br></div><div>You can do this a lot more easily using ERPLAB's "Bin Operator" to add / redefine labels based on conditional logic of event, timing, etc. Check out <a href="http://erpinfo.org" target="_blank">erpinfo.org</a> for the plugin.</div>
<div><br></div><div>The workflow is like this</div><div>- create a "binlist" (list of events in a text file with labels)</div><div>- assign that binlist to a continuous event file</div><div>- epoch the continuous file per the bins assigned, and average to ERPs</div>
<div>- then you would run conditional code to re-define your bins and apply it to the ERP file. </div><div><br></div><div>for example:</div><div><br></div><div>
<span style="font-family:Arial">%add ERPLab event structure</span></div>
<div style="font-size:medium"><span style="font-family:Arial">EEG = pop_creabasiceventlist(EEG, '', {'boundary'}, {-99});</span></div><div style="font-size:medium"><span style="font-family:Arial">% "bindesc.txt" contains numeric and text labels for each event</span></div>
<div style="font-size:medium"><span style="text-indent:0px;letter-spacing:normal;font-variant:normal;text-align:-webkit-auto;font-style:normal;font-weight:normal;line-height:normal;border-collapse:separate;text-transform:none;font-size:medium;white-space:normal;font-family:Arial;word-spacing:0px">EEG = pop_binlister( EEG, 'LANT_bindesc.txt', 'no', '', 0, [], [], 0, 0, 0);</span></div>
<div style="font-size:medium"><span style="text-indent:0px;letter-spacing:normal;font-variant:normal;text-align:-webkit-auto;font-style:normal;font-weight:normal;line-height:normal;border-collapse:separate;text-transform:none;font-size:medium;white-space:normal;font-family:Arial;word-spacing:0px">%cut continuous file into epoched file - resulting in a single file, unlike the epoching of EEGLAB</span></div>
<div style="font-size:medium"><span style="text-indent:0px;letter-spacing:normal;font-variant:normal;text-align:-webkit-auto;font-style:normal;font-weight:normal;line-height:normal;border-collapse:separate;text-transform:none;font-size:medium;white-space:normal;font-family:Arial;word-spacing:0px">EEG = pop_epochbin( EEG , [-1500 1500], [-0.1 0]);; %3-sec epohcs, baselined 100 ms pre-stim</span></div>
<div style="font-size:medium"><span style="text-indent:0px;letter-spacing:normal;font-variant:normal;text-align:-webkit-auto;font-style:normal;font-weight:normal;line-height:normal;border-collapse:separate;text-transform:none;font-size:medium;white-space:normal;font-family:Arial;word-spacing:0px">EEG = eeg_checkset( EEG );</span></div>
<div>%Create ERPs</div><div><div style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;font:normal normal normal 12px/normal Courier;font-family:Arial"><font color="#040404"><font face="Arial"><font size="4"><span style="font-size:14px">ERP = pop_averager( EEG,1,1,1);</span></font></font></font><font face="Arial"><font size="4"><span style="font-size:14px"> </span></font></font></div>
<div>% difference wave subtraction - you can create new ERPs not in the original epochs, here.</div><div><span style="font-size:14px;font-family:Arial">ERP = pop_binoperator( ERP, {'bin10 = bin1 - bin3 labels OrientingCost LVF' 'bin11 = bin7 - bin9 labels OrientingCost RVF' });</span> <span style="font-family:Arial;font-size:14px"> </span></div>
<div style="font-family:Arial"><font color="#040404"><font size="4"><span style="font-size:14px">ERP = pop_savemyerp(ERP, </span></font></font><font color="#040404"><font size="4"><span style="font-size:14px">'erpname'</span></font></font><font color="#040404"><font size="4"><span style="font-size:14px">, inputfilename, </span></font></font><font color="#040404"><font size="4"><span style="font-size:14px">'filename'</span></font></font><font color="#040404"><font size="4"><span style="font-size:14px">, [OUTPUTFILEPATH erpfilename]);</span></font></font></div>
</div><div> </div><div>Good luck - hope this helps!</div><div><br></div><div>Best,</div><div>andrew</div><div><br></div><div><div><div>On May 5, 2012, at 2:33 PM, Marco Montalto wrote:</div><br><blockquote type="cite"><div>
Dear List,<br><br>In my experiment I have three conditions and each trial is 30 seconds long. I ignore the first and last 10 seconds of each block and the middle 10-second block I divide into epochs of 2-second duration. Currently I am doing this manually through the EEGLAB GUI by placing an event (with the same 'type' for blocks from the same condition) at every two seconds (in the middle 10-second block) and then extracting epochs around those events. Would anyone know whether there is a more automated and a faster way of doing this? Thanks in advance.<br>
<br>Regards,<br>Marco Montalto<br>_______________________________________________<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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</div></blockquote></div><br></div></div><br><br>---------- Forwarded message ----------<br>From: Christian Scharinger <<a href="mailto:c.scharinger@gmx.net" target="_blank">c.scharinger@gmx.net</a>><br>To: <a href="mailto:eeglablist@sccn.ucsd.edu" target="_blank">eeglablist@sccn.ucsd.edu</a><br>
Cc: <br>Date: Mon, 07 May 2012 09:56:56 +0200<br>Subject: [Eeglablist] STUDY design: spectrum negative power values<br>Dear eeglab users,<br>
<br>
I use the following code for calculating the spectrum in a STUDY design:<br>
<br>
[STUDY ALLEEG] = std_precomp(STUDY, ALLEEG, 'channels', 'design', [1], 'erp', 'off', 'spec', 'on', 'ersp', 'off', 'specparams', { 'specmode', 'psd', 'recompute', 'on', 'timerange', [1300 1800], 'freqfac', [4] }, 'savetrials', 'off');<br>
<br>
STUDY = pop_specparams(STUDY, 'groupstats','on', 'mcorrect','fdr', 'threshold',0.05,'plotgroups',<u></u>'together','freqrange',[1 30], 'rmsubjmean', 'off');<br>
<br>
With this code, I'm getting negative power values when I use the std_specplot function for plotting (or when I do the plotting via GUI).<br>
<br>
So I guess I'm not getting absolute power values (what I would like to have) but power values in relation to some kind of baseline.<br>
<br>
Is it possible to get absolute power values for a spectrum in a STUDY design?<br>
Where can I see/change what baseline eeglab uses for calculating power values?<br>
<br>
Many thanks in advance,<br>
<br>
Christian<br>
<br>
<br>
<br>
-- <br>
Christian Scharinger, M.A.<br>
<br>
Knowledge Media Research Center (KMRC)<br>
Schleichstraße 6 | 72076 Tuebingen<br>
<br>
Phone: <a href="tel:%2B49%20%280%297071%20979-360" value="+497071979360" target="_blank">+49 (0)7071 979-360</a><br>
Internet: <a href="http://www.iwm-kmrc.de/c.scharinger" target="_blank">http://www.iwm-kmrc.de/c.<u></u>scharinger</a><br>
E-Mail: <a href="mailto:c.scharinger@iwm-kmrc.de" target="_blank">c.scharinger@iwm-kmrc.de</a><br>
<br>
<br>
<br><br>---------- Forwarded message ----------<br>From: Stephen Politzer-Ahles <<a href="mailto:politzerahless@gmail.com" target="_blank">politzerahless@gmail.com</a>><br>To: Marco Montalto <<a href="mailto:montaltomarco@onvol.net" target="_blank">montaltomarco@onvol.net</a>><br>
Cc: <a href="mailto:eeglablist@sccn.ucsd.edu" target="_blank">eeglablist@sccn.ucsd.edu</a><br>Date: Sat, 5 May 2012 20:38:55 -0500<br>Subject: Re: [Eeglablist] Automated way of placing events<br>Hi Marco,<br><br>I haven't tried this myself, but you should be able to get any of these epochs from the same event using pop_epoch. Assuming that you have an event marking the beginning of the block, then the first epoch you want (i.e. 10-12 seconds after the event) would be<br>
<br><div style="margin-left:40px">OUTEEG = pop_epoch( EEG, {events}, [10 12]);<br></div><br>the second would be<br><br><div style="margin-left:40px">OUTEEG = pop_epoch( EEG, {events}, [12 14]);<br></div><br>etc.<br><br>Best,<br>
Steve<br><br><div class="gmail_quote">On Sat, May 5, 2012 at 4:33 PM, Marco Montalto <span dir="ltr"><<a href="mailto:montaltomarco@onvol.net" target="_blank">montaltomarco@onvol.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Dear List,<br>
<br>
In my experiment I have three conditions and each trial is 30 seconds long. I ignore the first and last 10 seconds of each block and the middle 10-second block I divide into epochs of 2-second duration. Currently I am doing this manually through the EEGLAB GUI by placing an event (with the same 'type' for blocks from the same condition) at every two seconds (in the middle 10-second block) and then extracting epochs around those events. Would anyone know whether there is a more automated and a faster way of doing this? Thanks in advance.<br>
<br>
Regards,<br>
Marco Montalto<br>
_______________________________________________<br>
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</blockquote></div><br><br clear="all"><br>-- <br>Stephen Politzer-Ahles<br>University of Kansas<br>Linguistics Department<br><a href="http://www.linguistics.ku.edu/" target="_blank">http://www.linguistics.ku.edu/</a><br>
<br><br>---------- Forwarded message ----------<br>From: "Schelenz, Patrick David" <<a href="mailto:pschelenz@ukaachen.de" target="_blank">pschelenz@ukaachen.de</a>><br>To: "<a href="mailto:eeglablist@sccn.ucsd.edu" target="_blank">eeglablist@sccn.ucsd.edu</a>" <<a href="mailto:eeglablist@sccn.ucsd.edu" target="_blank">eeglablist@sccn.ucsd.edu</a>><br>
Cc: <br>Date: Mon, 07 May 2012 12:55:21 +0200<br>Subject: [Eeglablist] channel spectra & maps<br>
<div link="blue" vlink="purple" lang="DE">
<div>
<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial">Hi, <u></u><u></u></span></font></p>
<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial" lang="EN-GB">i am looking for help for spectral analysis with
EEGlab.<u></u><u></u></span></font></p>
<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial" lang="EN-GB"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial" lang="EN-GB">I analyzed my data and looked at spectral analysis
(plot-> channel spectra & maps). <u></u><u></u></span></font></p>
<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial" lang="EN-GB">Unfortunately I can’t get concrete values to do
a statistical analysis. Therefore, no comparison between groups is possible. <u></u><u></u></span></font></p>
<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial" lang="EN-GB">So my question is: how can I get these values? <u></u><u></u></span></font></p>
<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial" lang="EN-GB"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial" lang="EN-GB">Greetings<u></u><u></u></span></font></p>
<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial" lang="EN-GB"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial" lang="EN-GB">Patrick<u></u><u></u></span></font></p>
<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial">_______________________________<br>
<br>
Dipl.-biol. Patrick David Schelenz<br>
Klinik für Psychiatrie, Psychotherapie und Psychosomatik<br>
Universitätsklinikum der RWTH Aachen<br>
Pauwelsstr. 30<br>
52074 Aachen<br>
Tel. 0241 - 80 85580</span></font><font face="Arial"><span style="font-size:10.0pt;font-family:Arial"><u></u><u></u></span></font></p>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size:12.0pt"><u></u> <u></u></span></font></p>
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