[Eeglablist] single trial ERSP in study

[Arnaud Delorme]

Dear Federico,

single-trial correction in std_precomp should only performed if you use the parameter 'trialbase', 'on' of newtimef. Passing this parameter to std_precomp (erspparams) should forward it to newtimef. You should double check as this is only from memory.

Arno

On 24 Jul 2013, at 02:18, Federico Gabriel Arguissain wrote:

> Dear all,
>  
> I built a study where I precomputed single-trial ERSPs for a group of subjects containing two different conditions and I wanted to perform single-trial statistics. Among the ERSP parameters, I chose to have a single-trial baseline correction (using the ‘trialbase’ parameter). I was wondering if the single-trial data that are saved by std_precomp() are indeed baseline-corrected in each single-trial.
> My question arises because, as I understand the output parameter ‘tfdata’ of newtimef() is the “raw” single-trial data and is not baseline corrected. My confusion comes because newtimef() is called to calculate the ERSP in the study.
> Are there differences between the way newtimef() is called in the study in order to save the baseline-corrected single trials? If this is case (which I assume it is), is there a way to access these single-trial data ?
> 
> Thank you very much for your time.
>  
> Best regards,
> Federico
>  
>  
>  
> <image001.png>
>  
> Federico Gabriel Arguissain
> M. Sc. Biomed. Eng | PhD fellow
> Center for Sensory-Motor Interaction – SMI
> Department of Health Science and Technology – HST
> Phone:  (+45) 9940 9762 | mail: fga at hst.aau.dk |  Skype: federico.arguissain | Web: www.smi.hst.aau.dk
> Aalborg University | Fredrik Bajers Vej 7E-2 | DK-9220 Aalborg East | Denmark
>  
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