[Mne_analysis] events timing problem

[Alexandre Gramfort]

hi Elena,

did you try to plot your stim channel?

events are also defined taking into account the first_samp attribute.

See raw.first_samp

HTH
Alex


On Mon, Dec 7, 2015 at 10:56 AM, Elena Orekhova
<orekhova.elena.v at gmail.com> wrote:
> Dear mne experts,
>
>
>
> I record MEG with 5000 Hz sampling rate.  My 1st event [198] is around 17.3
> sec from the beginning of the file (as I can see it in the mne_browse_raw),
> while the events I obtain using  mne.find_eventscontain contain very
> different values:
>
>
>
> array(   [[ 553744,       0,     198],
>
> [ 559801,       0,       1],
>
> [ 565846,       0,       1],
>
> …
>
> It means that the 1st event is at 553744/5000 = 110.7488 sec
>
>
>
> The events were obtained as:
>
> events= mne.find_events(raw, stim_channel='STI101', consecutive=True,
> verbose=True, shortest_event=1, output ='onset' )
>
>
>
> Why event times do not correspond to what I see at the trigger channel?
>
>
>
> Thank you,
>
> Elena
>
>
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