[FieldTrip] using ft_rejectartifact on continuos data after manual rejection with ft_databrowser

[Jose Herrero]

thanks so much Diego. that works just fine.
it is a nice tool and, as far as i see, you can do it again if necessary
[e.g. artf1=ft_databrowser(cfg,cleandata)] and
 artf1.artfctdef.visual.artifact will keep adding times for artifacts,
correct?











On Thu, Apr 25, 2013 at 9:59 AM, Lozano Soldevilla, D. (Diego) <
d.lozanosoldevilla at fcdonders.ru.nl> wrote:

> Hi Jose,
>
> Are you analyzing  continuous data? If this is the case, you should
> specify cfg.artfctdef.reject = 'partial' before calling ft_rejectartifact.
> The reason is that  the default is 'complete' and if you're computing
> continuous data (not stimulus locked) you only have one trial and for
> instance nothing left after the rejection.
>
> best,
>
> Diego
>
> ------------------------------
>
> *From: *"Jose Herrero" <jose.herrero66 at gmail.com>
> *To: *"FieldTrip discussion list" <fieldtrip at science.ru.nl>
> *Sent: *Thursday, 25 April, 2013 3:49:00 PM
> *Subject: *[FieldTrip] using ft_rejectartifact on continuos data after
> manual        rejection with ft_databrowser
>
>
> dear Fieldtrippers,
>
> i am analysing spontaneous data and have some artifacts i'd like to
> exlcude by visual inspection on the contiunous data.
>
> So after prepocessing the data, I use
> cfg=ft_databrowser(cfg,alldata)
> and select manually the segments with artfacts.
>
> Then i run ft_rejectartifact
>
> cleandata = ft_rejectartifact(cfg,alldata);
> detected   12 visual artifacts
> rejected    1 trials completely
> rejected    0 trials partially
> resulting   0 trials
> Error using ft_rejectartifact (line 478)
> No trials left after artifact rejection.
>
> any idea which cfg specs should i use?
>
> thanks,
>
> --
> Jose L Herrero, PhD
> Department of Psychiatry
> Columbia University College of Physicians and Surgeons
> Cognitive Neuroscience and Schizophrenia Program
> Nathan S. Kline Institute for Psychiatric Research
>
>
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>
>
>
> --
> PhD Student
> Neuronal Oscillations Group
> Donders Institute for Brain, Cognition and Behaviour
> Centre for Cognitive Neuroimaging
> Trigon, room 0.83
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> Radboud University Nijmegen
> NL-6525 EN Nijmegen
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> E-Mail: d.lozanosoldevilla at fcdonders.ru.nl
> Tel:     +31-(0)24-36-66274
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>
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-- 
Jose L Herrero, PhD
Department of Psychiatry
Columbia University College of Physicians and Surgeons
Cognitive Neuroscience and Schizophrenia Program
Nathan S. Kline Institute for Psychiatric Research
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