[Eeglablist] eeglablist Digest, Vol 127, Issue 11

Tarik S Bel-Bahar tarikbelbahar at gmail.com
Mon May 11 16:24:28 PDT 2015


Hello Narenda, some points right below that should be of use to you. ~Cheers

1. Explore the Netstation and EGI documentation, available at their support
site or through their customer support.
2. See the readme notes within the folders at the EGI ftp site that have
their channel locations. You can find these if you google "EEGLAB channel
location files" which gives you a list and weblinks of many layouts. You
may also log into the EGI customer service website to get all available
channel layouts.
3. There are two folders of channel layouts at the egi ftp support folder.
Make sure you grab "Hydrocel" versions of the layouts you need. The GSN is
incorrect unless you recorded with the older GSN nets.
4. 128 channels in a layout file means that the channel layout file has 128
channels, and does not include a row of information about the label and
location of the reference electrode.
If the layout filename has 129 within it, it means that it does not include
a row of information about the label and location of the reference
electrode.
Simialrly for 64 and 64, 256 and 257 channel layout files for hydrocel egi
nets.
5. For erplab questions, you will likely have success putting a query right
on the erplab mailing list.





On Sun, May 10, 2015 at 3:34 AM, Narendra Kumar <
narendra.linguistics at gmail.com> wrote:

> Hi,
>
> I am a very new user to EEGLab and ERPLab toolbox. I have done practice on
> EEG/ERPLab using the sample data given on the website.  I have data
> recorded using EGI-128 channel system. Following the same steps when I am
> trying to analyse my data I got stucked in following issues:
>
>    ---  Electrode location file which one to use ? I am using HydrocelGSN
> net but in the plugins location files GSN128.sfp,  GSN129.sfp and GSN
> Hydrocel257.sfp are available. Electrode location file for GSN Hydrocel 128
> is absent.
>
>    --- Please clarify  when to use GSN128.sfp and GSN129.sfp ?
>
>    --- How to assign Binlister to the file ?
>
>
> Thanks & Regards,
>
> Narendra Kumar
> Research Scholar
> Department of Humanities and Social Sciences
> Indian Institute of Technology Ropar
> Punjab, India - 140001
> Contact No.:- +91-8968945650
> Homepage:- https://www.sites.google.com/site/narendraiitrpr/
> Social Networking Sites: - Facebook
> <https://www.facebook.com/narendra.karna.7>; Researchgate
> <https://www.researchgate.net/profile/Narendra_Kumar22/>
>
>
>
>
> On Sun, May 10, 2015 at 12:30 AM, <eeglablist-request at sccn.ucsd.edu>
> wrote:
>
>> Send eeglablist mailing list submissions to
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>> When replying, please edit your Subject line so it is more specific
>> than "Re: Contents of eeglablist digest..."
>>
>> Today's Topics:
>>
>>    1. Re: Electrode location.... (Makoto Miyakoshi)
>>    2. Re: ICA component rejection (Makoto Miyakoshi)
>>    3. Re: Topography plot in component clusters (Makoto Miyakoshi)
>>    4. Re: ICA component rejection (Makoto Miyakoshi)
>>    5. Re: Regarding PACT (Makoto Miyakoshi)
>>
>>
>> ---------- Forwarded message ----------
>> From: Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
>> To: Gonzalo Rojas Costa <gonzalo.rojas.costa at gmail.com>
>> Cc: EEGLAB List <eeglablist at sccn.ucsd.edu>
>> Date: Fri, 8 May 2015 12:02:26 -0700
>> Subject: Re: [Eeglablist] Electrode location....
>> Dear Gonzalo,
>>
>> Are these channels compatible with 10-20 system? In other words, are they
>> Fz, Cz, Pz, etc? If so then you just need to manually enter the channel
>> names and 'look up locs' to let EEGLAB read the template locations.
>>
>> Makoto
>>
>> On Wed, May 6, 2015 at 2:18 PM, Gonzalo Rojas Costa <
>> gonzalo.rojas.costa at gmail.com> wrote:
>>
>>> Hi:
>>>
>>> I have a four electrode EEG data file in EDF format.... I loaded
>>> successfully in EEGLAB, but I couldn't load the electrode location.... how
>>> can I do it?.... I tried to follow the EEGLAB tutorial instructions...
>>>
>>> Sincerely,
>>>
>>> Gonzalo Rojas Costa
>>>
>>> --------------------------------
>>> Gonzalo Rojas Costa
>>> Advanced Medical Image Processing Laboratory
>>> Department of Radiology
>>> Clínica las Condes
>>> Lo Fontecilla 441, Las Condes, Santiago, Chile.
>>> Tel: 56-2-2105170
>>> Cel: 56-9-97771785
>>> www.clc.cl
>>>
>>> _______________________________________________
>>> Eeglablist page: http://sccn.ucsd.edu/eeglab/eeglabmail.html
>>> To unsubscribe, send an empty email to
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>>> For digest mode, send an email with the subject "set digest mime" to
>>> eeglablist-request at sccn.ucsd.edu
>>>
>>
>>
>>
>> --
>> Makoto Miyakoshi
>> Swartz Center for Computational Neuroscience
>> Institute for Neural Computation, University of California San Diego
>>
>>
>> ---------- Forwarded message ----------
>> From: Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
>> To: Mostafa IR <mostafa.rouzbahani at gmail.com>
>> Cc: EEGLAB List <eeglablist at sccn.ucsd.edu>
>> Date: Fri, 8 May 2015 12:06:52 -0700
>> Subject: Re: [Eeglablist] ICA component rejection
>> Dear Mostafa,
>>
>> First of all, how did you get ICA work on the 5-sec data?
>>
>> For the example of efficient and flexible group-level IC rejection, see
>> my wiki page below.
>> http://sccn.ucsd.edu/wiki/Backproject_clustered_ICs
>>
>> Makoto
>>
>> On Fri, May 8, 2015 at 12:14 AM, Mostafa IR <mostafa.rouzbahani at gmail.com
>> > wrote:
>>
>>> Hi
>>>
>>> I want reject bad component after ICA analysis. I read the chapter09 ,
>>> Julie Onton
>>> Scott Makeig paper and ... . Except eye artifact the others are very
>>> hard to distinguish in other hand my data is very large(360 data set each
>>> one 5s without any event) and it's hard to reject all of them manually. I
>>> try to use MARA  plugins but it need at least 15s of EEG which my data are
>>> 5s. Is there any other plugin to help me for bad component rejection
>>> automatically?
>>>
>>> Thank you
>>>
>>> _______________________________________________
>>> Eeglablist page: http://sccn.ucsd.edu/eeglab/eeglabmail.html
>>> To unsubscribe, send an empty email to
>>> eeglablist-unsubscribe at sccn.ucsd.edu
>>> For digest mode, send an email with the subject "set digest mime" to
>>> eeglablist-request at sccn.ucsd.edu
>>>
>>
>>
>>
>> --
>> Makoto Miyakoshi
>> Swartz Center for Computational Neuroscience
>> Institute for Neural Computation, University of California San Diego
>>
>>
>> ---------- Forwarded message ----------
>> From: Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
>> To: Shingo Tokimoto <tokimoto at mejiro.ac.jp>
>> Cc: UCSD List EEG <eeglablist at sccn.ucsd.edu>
>> Date: Fri, 8 May 2015 14:32:32 -0700
>> Subject: Re: [Eeglablist] Topography plot in component clusters
>> Dear Shingo,
>>
>> Ok here is a solution for you based on my guess.
>>
>> > Is it impossible to plot topographies of two experimental conditions
>> for a component cluster as we can do in channel pot (for a time-window)?
>>
>> I guess you mean 'to plot *difference* topographies of two experimental
>> conditions for a component cluster'. The instruction below is based on this
>> assumption.
>>
>> Case 1: The conditions are all within-subject and with the continuous use
>> of an EEG cap.
>> Unless each within-subject condition is recorded on different sessions
>> (i.e. apply the EEG cap for one session, remove it, and applied it newly
>> for the next session), independent components should be shared across the
>> conditions. If this is the case, then difference topography is all zero.
>> Therefore, *you can't get difference topographies*.
>>
>> Case 2:  The conditions are between-subject (or within-subject but
>> different sessions with different EEG cap application). If this is the
>> case, subtraction of IC scalp maps makes sense.
>>
>> How to do it:
>>
>> 1. Load your STUDY with group differences (i.e. Case 2 mentioned above)
>>
>> 2. Use my plugin std_envtopo and show whatever envtopo. This is to
>> generate topoall_group under STUDY.cluster(1,X) It looks like this
>>
>> topoall_group: {{1x14 cell}  {1x17 cell}}
>>
>> 3. To visualize Group A and Group B in Cluster 5, see my code and result
>> example below
>>
>> https://drive.google.com/open?id=0BzTEovh4TOLiflAwREdrZmxsUTBfVFdjR3AyS0pOV3JONEEtTHpwdndwLU9mVXg3cHlITHc&authuser=0
>>
>> Let me know if you have any trouble in accessing my Google drive.
>>
>> Makoto
>>
>>
>>
>>
>>
>> On Tue, May 5, 2015 at 1:23 PM, Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
>> wrote:
>>
>>> Dear Shingo,
>>>
>>> I don't think it's possible.
>>> scalp topo generation is relatively straightforward using pop_topoplot()
>>> function. I can help you to do this if you are interested in.
>>>
>>> Makoto
>>>
>>> On Thu, Apr 30, 2015 at 3:24 PM, Shingo Tokimoto <tokimoto at mejiro.ac.jp>
>>> wrote:
>>>
>>>> Dear EEGLAB experts,
>>>>
>>>> Is it impossible to plot topographies of two experimental conditions
>>>> for a component cluster as we can do in channel pot (for a time-window)?
>>>> Thank you in advance.
>>>>
>>>> ************************************************
>>>> Shingo Tokimoto, Ph.D.
>>>> in Linguistics and Psychology
>>>> Department of Foreign Languages
>>>> Mejiro University
>>>> 4-31-1, Naka-Ochiai, Shinjuku, Tokyo,
>>>> 161-8539, Japan
>>>> tokimoto at mejiro.ac.jp
>>>> ************************************************
>>>>
>>>>
>>>> _______________________________________________
>>>> Eeglablist page: http://sccn.ucsd.edu/eeglab/eeglabmail.html
>>>> To unsubscribe, send an empty email to
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>>>>
>>>
>>>
>>>
>>> --
>>> Makoto Miyakoshi
>>> Swartz Center for Computational Neuroscience
>>> Institute for Neural Computation, University of California San Diego
>>>
>>
>>
>>
>> --
>> Makoto Miyakoshi
>> Swartz Center for Computational Neuroscience
>> Institute for Neural Computation, University of California San Diego
>>
>>
>> ---------- Forwarded message ----------
>> From: Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
>> To: Mostafa IR <mostafa.rouzbahani at gmail.com>
>> Cc: EEGLAB List <eeglablist at sccn.ucsd.edu>
>> Date: Fri, 8 May 2015 14:34:26 -0700
>> Subject: Re: [Eeglablist] ICA component rejection
>> Dear Mostafa,
>>
>> > 1)Can I append these 5-sec data together for creating a longer data and
>> after that use the ICA?
>>
>> Yes, for ICA longer the data better the decomposition. If possible, use
>> even continuous data.
>>
>> > 2) If the first question is yes can I separate my data again to 5-sec
>> and use the ICA weights of merged data?
>>
>> Yes. You can actually epoch the data normally after ICA.
>>
>> Makoto
>>
>> On Fri, May 8, 2015 at 1:34 PM, Mostafa IR <mostafa.rouzbahani at gmail.com>
>> wrote:
>>
>>> Dear Laura
>>> I will be glad to use your plugin and count on your help.
>>>
>>> Dear Makoto
>>> Thanks for your link and your advice. I used to make a big mistake about
>>> ICA with neglect of data point rule of thumb.
>>> I have a new question. My data is about emotions. In my case the person
>>> saw a picture for 5-sec and eeg with 16 channels at 512HZ captured. 10
>>> picture with the same content show to the person.
>>> 1)Can I append these 5-sec data together for creating a longer data and
>>> after that use the ICA?
>>> 2) If the first question is yes can I separate my data again to 5-sec
>>> and use the ICA weights of merged data?
>>>
>>> Best Regards
>>>
>>> On Fri, May 8, 2015 at 23:37 Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
>>> wrote:
>>>
>>>> Dear Mostafa,
>>>>
>>>> First of all, how did you get ICA work on the 5-sec data?
>>>>
>>>> For the example of efficient and flexible group-level IC rejection, see
>>>> my wiki page below.
>>>> http://sccn.ucsd.edu/wiki/Backproject_clustered_ICs
>>>>
>>>> Makoto
>>>>
>>>> On Fri, May 8, 2015 at 12:14 AM, Mostafa IR <
>>>> mostafa.rouzbahani at gmail.com> wrote:
>>>>
>>>>> Hi
>>>>>
>>>>> I want reject bad component after ICA analysis. I read the chapter09 ,
>>>>> Julie Onton
>>>>> Scott Makeig paper and ... . Except eye artifact the others are very
>>>>> hard to distinguish in other hand my data is very large(360 data set each
>>>>> one 5s without any event) and it's hard to reject all of them manually. I
>>>>> try to use MARA  plugins but it need at least 15s of EEG which my data are
>>>>> 5s. Is there any other plugin to help me for bad component rejection
>>>>> automatically?
>>>>>
>>>>> Thank you
>>>>>
>>>>> _______________________________________________
>>>>> Eeglablist page: http://sccn.ucsd.edu/eeglab/eeglabmail.html
>>>>> To unsubscribe, send an empty email to
>>>>> eeglablist-unsubscribe at sccn.ucsd.edu
>>>>> For digest mode, send an email with the subject "set digest mime" to
>>>>> eeglablist-request at sccn.ucsd.edu
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Makoto Miyakoshi
>>>> Swartz Center for Computational Neuroscience
>>>> Institute for Neural Computation, University of California San Diego
>>>>
>>>
>>
>>
>> --
>> Makoto Miyakoshi
>> Swartz Center for Computational Neuroscience
>> Institute for Neural Computation, University of California San Diego
>>
>>
>> ---------- Forwarded message ----------
>> From: Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
>> To: "井澤考史" <ko.izawa at gmail.com>
>> Cc: EEGLAB List <eeglablist at sccn.ucsd.edu>
>> Date: Fri, 8 May 2015 14:50:35 -0700
>> Subject: Re: [Eeglablist] Regarding PACT
>> Dear Koji,
>>
>> I tried it but could not replicate the problem. I used Matlab 2014b,
>> EEGLAB 13.x, PACT0.17.
>>
>> From your log,
>>
>> > pop_eegfiltnew() - performing 425 point bandpass filtering.
>>
>> This does not make sense to me. Looks like your sampling rate is very
>> low, must be around 100Hz? Because the default amplitude frequency cutoff
>> is 100Hz (i.e. amplitude of > 100Hz will be analyzed), your sampling rate
>> should be much higher than 100Hz.
>>
>> PACT assumed that the input is ECoG data, which is usually sampled at >=
>> 1000Hz. Please try the data with much higher sampling rate (or upsampling
>> your data to see if it fixes the problem.)
>>
>> Makoto
>>
>>
>> On Mon, Apr 27, 2015 at 4:27 PM, 井澤考史 <ko.izawa at gmail.com> wrote:
>>
>>> Dear EEGLAB and PACT team,
>>>
>>> I’m trying to learn the PACT by using eeglab_data.set. But I met some
>>> errors as follows. Could you provide any opinion to me?
>>>
>>> My Operation
>>> - Loaded dataset.
>>> - Launched "Compute PAC” GUI.
>>> - No change all parameters value form default and press OK.
>>>
>>> pop_eegfiltnew() - performing 425 point bandpass filtering.
>>> pop_eegfiltnew() - transition band width: 1 Hz
>>> pop_eegfiltnew() - passband edge(s): [1 2] Hz
>>> pop_eegfiltnew() - cutoff frequency(ies) (-6 dB): [0.5 2.5] Hz
>>> pop_eegfiltnew() - filtering the data (zero-phase)
>>> firfilt(): |====================| 100%, ETE 00:00
>>> Error using pop_eegfiltnew (line 148)
>>> Cutoff frequency out of range
>>>
>>> Error in pac_man (line 181)
>>> EEG_highFreqAmp   = pop_eegfiltnew(EEG, hfoAmp(1),   hfoAmp(end));
>>>
>>> Error in pac_pop_main (line 145)
>>> EEG = pac_man(EEG, options{:});
>>>
>>> Error while evaluating uimenu Callback
>>>
>>>
>>> Best regards,
>>> Koji
>>>
>>>
>>> _______________________________________________
>>> Eeglablist page: http://sccn.ucsd.edu/eeglab/eeglabmail.html
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>>>
>>
>>
>>
>> --
>> Makoto Miyakoshi
>> Swartz Center for Computational Neuroscience
>> Institute for Neural Computation, University of California San Diego
>>
>> _______________________________________________
>> eeglablist mailing list eeglablist at sccn.ucsd.edu
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>
>
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