[FieldTrip] dimord single-trial source data

[Schoffelen, J.M. (Jan Mathijs)]

Hi again Stephen,

I forgot to mention a third approach: you can compute your spatial filter with cfg.method = ‘lcmv’ and cfg.lcmv.keepfilter = ‘yes’, and subsequently compute the source level spectra by applying these spatial filters to the sensor level fourier spectra.

Best wishes,
Jan-Mathijs




> On 16 Nov 2017, at 12:36, Stephen Whitmarsh <stephen.whitmarsh at gmail.com> wrote:
> 
> Hi FieldTrippers,
> 
> I was wondering is there is a recommend/most consistent way to represent trial x pos x time data from an LCMV beamformer, also considering the dimord. In other words:
> 
> with:
> 
> data.method = 'singletrial'
> 
> should I use:
> 
> data.trial{pos} = [rpt x time]
> data.dimord = '{pos}_rpt_time'
> 
> or rather:
> 
> data.trial = {pos x rpt x time}
> data.dimord = 'pos_rpt_time'
> 
> or something else? The purpose is to then do a frequency analysis (with keeptrials = 'yes').
> 
> Best,
> Stephen 
> 
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