[Eeglablist] Topography of differences

[Cedric Cannard]

Hi Paola,

This tuto page should help you do this: https://urldefense.com/v3/__https://eeglab.org/tutorials/10_Group_analysis/study_statistics.html__;!!Mih3wA!Gldw6gz1LAdUO680yz9M1AF4QV5k2fj2B8fGBsAukmo9No4bh-DRdme699xSMvmYUB4kAamfj9MXmkYdGKtkjJZt-w$ 

To plot the difference between 2 conditions: STUDY > Plot channel measures > STATS > check the box "Compute 1st independent variable statistics".
To plot scalp topographies:  PARAMS > select your time range > Select "Plot averaged topography over time" 

And don't forget to select corrections for multiple comparisons in the STATS window as well to control for type 1 error (e.g., permutation statistics, fdr-correction). 

Cedric



------- Original Message -------
On Thursday, March 23rd, 2023 at 7:23 AM, Paola Melani <paola.melani at ecole-air.fr> wrote:


> Dear everyone,
> 
> I work on ERP study that i process with EEGLAB. I would like to do a topography difference of a window of interest as we can see in some scientific papers.
> With the Study function, I can do one topography for a window of interest of 0 to 200 for example for each experimental condition, while I would like to do one topography each 50 ms (0ms; 50ms, 100ms and 200ms) that show the activation difference between a condition 1 and a condition 2.
> I’m looking for on internet and on eeglab tutorials’, but I do not find how can I do this, so someone know or have the script to do this topographies differences ?
> 
> Thank you very much for your help.
> 
> Paola Melani
> Phd Student in Psychology / Human Factors
> French Air Force Academy Center
> France
> 
> 
> 
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