[Eeglablist] EEGLAB microstate toolbox

[Daniele Scanzi]

Hi Will,

I have just tried out the toolbox last week and I had no issues replicating
the results. I cannot see the screenshot you are referring to. However, I
noticed that the link you have used to download the data is not the one
reported in the paper (page 14), which is this one:
https://urldefense.com/v3/__https://archive.compute.dtu.dk/files/public/users/atpo/Microstate__;!!Mih3wA!C8qLzS2bWd9EnLAXWKu0XlmMBWm8r4diUNsWyAqiDFlk8gQLSFQgavNnpTHvrdPtU3LQMGqDZ0vUs2pJCC2_MWki4vwEKM8$  

>From this link you should be able to download the 4 set (and fdt) files.

Hope this helps!

Daniele Scanzi


On Wed, 9 Nov 2022 at 09:47, William McGeown <william.mcgeown at strath.ac.uk>
wrote:

> Dear All,
> I was hoping someone might be able to help.
> I'm really interested in using one of the EEGLAB microstate toolboxes (MST
> toolbox:
> https://urldefense.com/v3/__https://github.com/atpoulsen/Microstate-EEGlab-toolbox__;!!Mih3wA!Fjqn6-wNLWvD4vBBR0hrfsi7-IW0t09v_Of0QP_eDRuTgLmvdkH_3Gg6euhUEsfEJJzrHU07NN7WmVzUbnazA4pa58I704u2zOAz$
> ).
>
> I have been trying to recreate the results detailed in the tutorial (
> https://urldefense.com/v3/__https://www.biorxiv.org/content/10.1101/289850v1.full.pdf__;!!Mih3wA!Fjqn6-wNLWvD4vBBR0hrfsi7-IW0t09v_Of0QP_eDRuTgLmvdkH_3Gg6euhUEsfEJJzrHU07NN7WmVzUbnazA4pa58I700tGlzHB$
> ), but with little success.
> Perhaps the issue is with the datasets that I am downloading or how I am
> loading them into EEGLAB.
> When I segment the microstates and then plot them - the microstates do not
> look anything like what is in the tutorial pdf, and instead they appear
> fragmented (see attached screenshot).  This is in contrast to what would be
> expected according to p19 of the tutorial.
>
> I'm not sure if the issue for me is that after downloading the tutorial
> data from here:
> https://urldefense.com/v3/__http://fcon_1000.projects.nitrc.org/indi/cmi_eeg/eeg.html__;!!Mih3wA!Fjqn6-wNLWvD4vBBR0hrfsi7-IW0t09v_Of0QP_eDRuTgLmvdkH_3Gg6euhUEsfEJJzrHU07NN7WmVzUbnazA4pa58I70-lQm_ED$
>  that the channels are not being set up properly in eeglab.
> I have been simply loading the .mat files into EEGLAB from the
> subject-level preprocessed folders (as .set files are not available from
> the website).
> I think the channel locations seem to look in accordance to the EGI 128
> channel configuration.
> I have also experimented by loading in an edited EGI channel file (reduced
> to the correct number of channels), but again with no luck in replicating
> the tutorial results.
>
> In the tutorial guide it looks like it may have been possible to download
> .set eeglab files from that website in the past (although I'm not sure
> about that). Now, however, the available preprocessed files are in .mat and
> .csv, but there is no eeglab format .set for download.
>
> I was wondering if anyone else has encountered difficulties replicating
> the tutorial guide and in particular if anyone has perhaps encountered the
> same issue as me?  Any idea what I am doing wrong?
> I have tried the analysis also going back to the version of EEGLAB that
> the tutorial was ran on (rather than a recent version).
> I have also tried the steps both in the GUI and by using the script
> provided in the tutorial, but obtain these results.
>
> Relatedly - If anyone has the 4 tutorial .set files and could share them
> with me please, then I could load them into eeglab to see if the datafiles
> have been the problem for me, or if there is some greater problem?
>
> Hoping someone can help.
>
> Thank you,
>
> Will
>
>
>
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