Print

Print


Thanks Yury.Do you know how mark_bad_fiff defines a bad channel?  Is it the
same criteria described in the manual for the autobad feature?

Tony

On Thu, Oct 1, 2009 at 9:47 AM, Yury Shtyrov <[log in to unmask]
> wrote:

> This is certainly something that many people are doing in the previous
> version of MF here, and I can't see why you wouldn't do it in MF 2.1.
> It's indeed either mark_bad_fiff or by entering them as bad channels
> using MF command line options.
>
> yury
>
> 2009/10/1 Tony W. Wilson <[log in to unmask]>:
> > I have been confused about whether Maxfilter 2.1 is excluding bad
> channels
> > prior to computing the tsss correction.  I understand from watching the
> > program and reading the manual (Oct 2008 revision) that tsss switches off
> > the automated bad channel detection, but does detect and exclude
> saturated
> > channels and static bad channels from the computation.  To me, it seems
> > there could be additional channels one would want to exclude.  For
> example,
> > sensors that were noisy in a particular run, or on that day, but were not
> > excluded during acquisition (due to an oversight or whatever).  To ensure
> > such channels are excluded, I'm guessing one needs to run mark_bad_fiff
> on
> > each raw file prior to tsss.  Is my understanding correct?  Is anyone
> else
> > doing this (ie., mark_bad_fiff, then tsss)?
> > All the best,
> > Tony
> > ___________________________________________________
>
>
> Yury Shtyrov, Dr.Phil., Prof.
> Senior Scientist (PLT)
> Manager, MEG Laboratory
> Medical Research Council (MRC)
> Cognition and Brain Sciences Unit
> 15 Chaucer Rd, CB2 7EF
> Cambridge, United Kingdom
> tel +44 1223 273703 (office)
> tel +44 1223 355294 (reception), ext 832
> fax +44 1223 359062
> e-mail [log in to unmask]
> http://www.mrc-cbu.cam.ac.uk/~yury
>