[FieldTrip] Difference wave calculation

Magyari, Lilla Lilla.Magyari at mpi.nl
Tue Jun 19 13:50:08 CEST 2012

hi Peter,

You can find in this tutorial site:
under "Plotting the results" how condition differences are calculated 
for visualization purposes. It is probably the same that you have done 


Peter Goodin wrote:
> Hi Fieldtrip list,
> I'm quite new to using Fieldtrip for analysis and can't find any 
> information on how to create difference waves, for example to examine 
> MMN activity. Currently I've just been making a new structure and adding 
> items from the ft_timelockedanalysis function, subtracting the standard 
> from the deviant for the .avg and .var fields while keeping the rest 
> intact. 
> Are there any tutorials available that can show me the recommended way 
> to go about this? Alternatively, can anyone working with difference 
> waves give an example of how they calculate them?  
> Thanks,
> Peter.
> Peter Goodin
> Ph.D Candidate
> Brain and Psychological Research Centre (BPsyC)
> Swinburne University of Technology
> 400 Burwood Road, Hawthorn, VIC 3122
> Monash Alfred Psychiatric Research Centre (MAPrc)
> Alfred Hospital
> Level 1, Old Baker Building, 
> Vic 3008
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