[FieldTrip] Question on Cluster-based permutation tests on time-frequency data

[Haiteng Jiang]

Dear Nithin,

     Cluster statistic works both for MEG and EEG data since the machinery
is the same . You can  organize the  Non-FT in the  Fieldtrip style.
Please not that FT have a data structure (channel*frequency*time ), so  you
need to transpose your data matrix first.  Besides , you also need to
define the layout of your channels , then you know the neighbors of
channels (see ft_prepare_neighbours) because clusters are formed  on the
basis of temporal, spatial and spectral adjacency.  For more information,
 please have a  look at the tutorial again
http://fieldtrip.fcdonders.nl/tutorial/cluster_permutation_freq.

                                                                        All
the best,

Haiteng




>
> Message: 6
> Date: Wed, 2 Apr 2014 10:23:01 -0400
> From: "Nithin Krishna" <nkrishna at mprc.umaryland.edu>
> To: "list, FieldTrip discussion" <fieldtrip at science.ru.nl>
> Subject: [FieldTrip] Question on Cluster-based permutation tests on
>         time-frequency data
> Message-ID: <20140402T102301Z_155300170001 at mprc.umaryland.edu>
> Content-Type: text/plain; charset="utf-8"
>
> Dear All,
> I read the tutorial section on Cluster-based permutation tests on
> time-frequency data as well as the  Maris and Oostenveld, Journal of
> Neuroscience Methods, 2007 report. I am interested in setting up a ERP
> experiment on EEG data in this regard I like the procedure and processing
> section of the tutorial, however I would like to know if there is any
> section for EEG, I understand that megplanar is specific for MEG.
> Also is it possible to use 3D matrix (TFR) (time, Freq channels ) non
> feild trip output to run the cluster based permutation tests.
> Looking forward
> Nithin
>
>
>
> --
Haiteng Jiang
PhD candidate
Neuronal Oscillations Group
Donders Institute for Brain, Cognition and Behaviour
Centre for Cognitive Neuroimaging
Radboud University Nijmegen

Visiting address
Room 2.32
Donders Centre for Cognitive Neuroimaging
Kapittelweg 29
6525 EN  Nijmegen
the Netherlands

 Tel.: +31 (0)243668291
 Web:  https://sites.google.com/site/haitengjiang/
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