[FieldTrip] Granger convention

[jan-mathijs schoffelen]

Yes Giovanni, that's correct. Thanks for posting this, I was already hoping that somebody would notice ;-).

a presto,

JM

On Nov 30, 2011, at 5:43 PM, Gio Piantoni wrote:

> Hi all,
> 
> I'm resurrecting an old post, because I found the answer in
> ft_connectivityplot and it might useful to other people:
> 
> line 122:
> % use the convention of the row-channel causing the column-channel
> 
> I updated the wiki as well. Please, correct me if this is not the
> correct convention.
> 
> Best,
> 
> Gio
> 
> On Wed, Aug 17, 2011 at 13:43, Gio Piantoni <g.piantoni at nin.knaw.nl> wrote:
>> 
>> Hi all,
>> 
>> The connectivity toolbox is very powerful and straightforward to use,
>> thanks for that! However, I did not find any information about the
>> convention used by Fieldtrip to represent asymmetrical connectivity
>> measures (such as granger causality), f.e. in the help of the
>> functions, in http://fieldtrip.fcdonders.nl/faq/in_what_way_can_frequency_domain_data_be_represented_in_fieldtrip
>> nor in http://fieldtrip.fcdonders.nl/development/connectivity_tutorial
>> 
>> Do the values in data.grangerspctrm(1, 2, :) represent the
>> granger-causality values from channel 1 to channel 2 or the other way
>> round?
>> 
>> BTW, is it possible to run time-domain granger causality in Fieldtrip?
>> 
>> Thanks!
>> 
>> Gio
>> 
>> --
>> Giovanni Piantoni, Ph.D. student
>> Dept. Sleep & Cognition
>> Netherlands Institute for Neuroscience
>> Meibergdreef 47
>> 1105 BA Amsterdam (NL)
>> 
>> +31 (0)20 5665492
>> g.piantoni at nin.knaw.nl
>> www.giovannipiantoni.com
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Jan-Mathijs Schoffelen, MD PhD 

Donders Institute for Brain, Cognition and Behaviour, 
Centre for Cognitive Neuroimaging,
Radboud University Nijmegen, The Netherlands

Max Planck Institute for Psycholinguistics,
Nijmegen, The Netherlands

J.Schoffelen at donders.ru.nl
Telephone: +31-24-3614793

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