[Eeglablist] Linear detrend

[arno delorme]

Dear Min,

A good way to achieve linear detrending is to filter your raw data  
with a filter at 0.3 or 0.5Hz prior to extracting data epochs.
Hope this helps,

Best,

Arno

> I am conducting a study on some ERP components (e.g. C1 P1 etc.) in  
> Visual Evoked Potential. In some of my data, I can see a little  
> linear trend which may affect the peak amplitude evaluation. Do you  
> know whether doing linear trend is good or not and if it's good how  
> to correct such a linear trend in EEGlab? If EEGlab does not provide  
> any plugins to correct it, what algorithms and methods are you  
> using? Is it better to do linear detrend on the averaged or all  
> individual epochs?