[Homer-users] Using Short-Separation

[Blanca Marin Bosch]

Hi Mathieu,

You can try rhoSD_ssThresh = 1.5
For us, we had to input the short separation value in cm.

Hope it helps!
Blanca
On Aug 6, 2015 1:06 PM, "Mathieu Coursolle" <mathieu at rogue-research.com>
wrote:

> Hi,
>
> I am currently using Homer2 (v2.0) (Matlab R2013a) and am trying to use
> the short separation measurements.
>
> I only have a single short-separation for this acquisition, but I am
> hoping to see if I can use that one short-separation to process all the
> other channels.
>
> I viewed the Homer2 training from 13/03/04 (Youtube) and created a similar
> process stream (task is 30 sec tapping, 30 sec rest).
> https://www.youtube.com/watch?v=tqzVcEj0FeA
>
> I used:
>
> - intensity_to_OD
> - Bandpass_Filter
>         hpf = 0
>         lpf = 0.3
> - OD_to_Conc
>         ppf = [6.0, 6.0]
> - GLM_HRF_ShortSep_Drift
>         trange = [-2, 40]
>         gstd = 1.0
>         gms = 1.0
>         rhoSD_ssThresh = 15.0
>
> From the training session, it seems that after processing, the
> short-separation becomes a flat line, and the other channels should be
> processed using the closest short-separation.
>
> However, there doesn’t seem to be any effect on the short-separation
> itself (and all other channels) in my case…
>
> Is my understanding/process stream ok?
>
> Thank you,
>
> Mathieu
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