[Eeglablist] Help with baseline

Stephen Politzer-Ahles spa268 at nyu.edu
Wed Jul 30 23:03:31 PDT 2014

Hello Shayra,

In reading experiments with serial visual presentation, usually a pause is
included between words to provide a "clean" baseline. If you don't have
that pause, you could consider what is often done with auditorily-presented
sentence stimuli, which is using a short post-stimulus baseline (e.g. 0-100

The best baseline also depends on what kind of preprocessing you are going
to do. For example, there's evidence that a whole-epoch baseline is the
best baseline for running ICA (David Groppe has a recent paper on this).


Stephen Politzer-Ahles
New York University, Abu Dhabi
Neuroscience of Language Lab

On Wed, Jul 30, 2014 at 10:50 PM, Burgos-Garcia, Shayra <sburgosg at tulane.edu
> wrote:

>  Hello.
>  I'm working with a reading-task language ERP test. The critical stimuli
> (word) is presented at the end of each sentence, and there are no pauses
> between words.
> I would like to know if anyone have a good advice as to how to do
> the baseline in this kind of test. It seems like some relevant processing
> is been lost by using the preceding segment as baseline.
> Thanks!
>  Shayra Helena Burgos-García ​
> Tulane University
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