Dear John,
The prior mean values for the delays are 2ms for intrinsic and 16ms
for extrinsic (see line 50 of spm_fx_erp). You can get the posterior
means by p*exp(DCM.Ep.D) where p is the prior mean (see line 141 of
the same function). So negative entries mean that the posterior is
below the prior.
Best,
Vladimir
On Sat, Jun 23, 2012 at 3:25 PM, John D. Griffiths
<[log in to unmask]> wrote:
> Dear list,
> Could someone please explain to me
>
> a) the units used in the (spm meeg) DCM.Ep.D inter-regional coupling delay parameter estimates array, and
>
> b) what is the meaning of negative entries in this array?
>
>
> many thanks,
> John
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