[Eeglablist] Filter causality pop_eegfiltnew

jfochoaster . jfochoaster at gmail.com
Sat Jan 18 06:47:04 PST 2014


Hello all,

I'm following the SIFT tutorial, the section 6.5.1.3 is about filtering,
talk about eegfilt, about the zero-phase (acausal) filter

Is better forget this section of filtering and use the recommendations in
the past emails?

Are these recommendation critical for the analysis?, I mean, there is a lot
of work about MVAR models in ECoG data

Best wishes

John


On Fri, Jan 17, 2014 at 11:05 PM, mullen.tim at gmail.com <mullen.tim at gmail.com
> wrote:

> Oh thats interesting. I had not seen Anil's multitaper filter (might be
> fairly recent). But possibly it is exactly the same approach that is in
> Cleanline. If this is the method advocated by Mitra and Pesaran as in the
> Chronux toolbox then indeed its the same. And highly recommended.
> -----Original Message-----
> Date: Friday, January 17, 2014 1:21:30 pm
> To: mullen.tim at gmail.com
> Cc: trotta_gabriele at yahoo.com, drcoben at gmail.com, mmiyakoshi at ucsd.edu,
> widmann at uni-leipzig.de, eeglablist at sccn.ucsd.edu
> From: "Vito De Feo" <vito.defeo at zmnh.uni-hamburg.de>
> Subject: Re: [Eeglablist] Filter causality pop_eegfiltnew
>
> Before using the Cleanline (that I used today for the first time) I did't
> use the notch filter, I used a multi taper filtering made by Anil Seth. I
> know that filtering is very bad for later VAR modeling, especially notch
> and high pass. Low pass is better (usually I use multi taper filtering to
> remove the noise lines and a low pass causal filter with cut off filtering
> of 100 Hz).
> Do you think is ok Tim?
> Best
> Vito
>
>
> Il giorno 17/gen/2014, alle ore 20:53, mullen.tim at gmail.com ha scritto:
>
> > Do not notch filter your data! This can be very bad for later VAR
> modeling -- and IMO bad in general. You can use an adaptive spectral
> regression method such as that in the Cleanline plugin for eeglab to remove
> line noise.
> >
> > See Barnett and Seth 2011 and Mitra and Pesaran 1999 for theoretical
> discussions.
> >
> > Rob, there is no video of the SIFT workshop but the lecture pdfs are
> online at the eeglab workshop page.
> >
> > Tim
> > -----Original Message-----
> > Date: Friday, January 17, 2014 10:18:32 am
> > To: "
>
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-- 
John Ochoa
Docente de Bioingeniería
Universidad de Antioquia
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