[Mne_analysis] Receiving accurate number of events

[Neelesh Kumar]

        External Email - Use Caution        

Hi Brunner,

Thanks for the reply. Yes, I did try your suggestion of changing
consecutive and min_duration parameters. Biosemi triggers are 24 bits long,
and the automatic trigger is contained in the upper 8 bits. I will try
masking the upper 8 bits using the mask argument of find_events.

Thanks,
Neelesh

On Fri, 20 Jul 2018 at 11:44, Brunner, Clemens (clemens.brunner at uni-graz.at)
<clemens.brunner at uni-graz.at> wrote:

>         External Email - Use Caution
>
> Neelesh,
>
> did you follow the advice in my previous mail? It all depends on what
> exactly you send, so the best way to determine the parameters is to inspect
> the actual trigger channel. I don't know how your trigger signal looks
> like, and there's no general solution. However, I've found that resetting
> the trigger signal to 0 after an event was sent out really help keep things
> simple. If you don't do this, Biosemi will add the current trigger value to
> the previous one.
>
> Clemens
>
>
>
> > On Jul 20, 2018, at 16:37, Neelesh Kumar <neelesh314 at gmail.com> wrote:
> >
> >         External Email - Use Caution
> >
> >
> > Hi,
> >
> > I am trying to send trigger from a linux system to the Biosemi ActiveOne
> system. We know that biosemi sends triggers of its own as well:
> >
> > https://www.biosemi.com/faq/trigger_signals.htm
> >
> > My question is how can we use find_events and its argument to get the
> right number of events. Right now, I am modifying the parameter
> min_duration to arbitrary values until I get the number of events that is
> close to what I expect. Is there a better way to do this?
> >
> > Thanks,
> > Neelesh
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