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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">haha no worries, thanks for the reply!<br>
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<div id="divRpF224734" style="direction: ltr;"><font face="Tahoma" size="2" color="#000000"><b>From:</b> fieldtrip-bounces@science.ru.nl [fieldtrip-bounces@science.ru.nl] on behalf of jan-mathijs schoffelen [jan.schoffelen@donders.ru.nl]<br>
<b>Sent:</b> 18 February 2014 6:57<br>
<b>To:</b> FieldTrip discussion list<br>
<b>Subject:</b> Re: [FieldTrip] coherence vs magnitude squared coherence<br>
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<div>Hi Ingmar,
<div>Sorry for the mix up. Apparently I was not yet fully awake when typing my previous reply. Blame it on the offspring, which kept me awake during some crucial parts of the night: where I typed 'Floris', I of course meant to type 'Ingmar' ;-). To all Florises
on the list: this was a free answer to a question you didn't know you wanted to ask.</div>
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<div>Best,</div>
<div>Jan-Mathijs</div>
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<div>On Feb 18, 2014, at 6:43 AM, jan-mathijs schoffelen wrote:</div>
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<div style="word-wrap:break-word">Hi Floris,
<div>Yes, if you want magnitude squared coherence, you need to square the value fieldtrip computes for you. Note that there is no single convention in the literature: some people report coherence, some report coherence squared.</div>
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<div>Best,</div>
<div>Jan-Mathijs</div>
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<div>On Feb 18, 2014, at 12:00 AM, Vries, I.E.J. de wrote:</div>
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<div dir="ltr">Hi Fieldtrippers,</div>
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<div dir="ltr">If I got it correctly, if you choose to calculate coherence (cfg.method='coh') with ft_connectivityanalysis, and you choose cfg.complex='abs' (which is the default), you get the absolute value of coherency, i.e. coherence. But not yet the magnitude
squared coherence, which is usually reported in the literature for coherence. So all I need to do is square the coherence value calculated by Fieldtrip right? </div>
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<div dir="ltr">Cheers,</div>
<div dir="ltr">Ingmar</div>
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<div>Jan-Mathijs Schoffelen, MD PhD </div>
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<div>Donders Institute for Brain, Cognition and Behaviour, <br>
Centre for Cognitive Neuroimaging,<br>
Radboud University Nijmegen, The Netherlands</div>
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</div>
<div>Max Planck Institute for Psycholinguistics,</div>
<div>Nijmegen, The Netherlands</div>
<div><br>
</div>
<div><a href="mailto:J.Schoffelen@donders.ru.nl" target="_blank">J.Schoffelen@donders.ru.nl</a></div>
<div>Telephone: +31-24-3614793</div>
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</div>
<div><a href="http://www.hettaligebrein.nl/" target="_blank">http://www.hettaligebrein.nl</a></div>
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<div>Jan-Mathijs Schoffelen, MD PhD </div>
<div><br>
</div>
<div>Donders Institute for Brain, Cognition and Behaviour, <br>
Centre for Cognitive Neuroimaging,<br>
Radboud University Nijmegen, The Netherlands</div>
<div><br>
</div>
<div>Max Planck Institute for Psycholinguistics,</div>
<div>Nijmegen, The Netherlands</div>
<div><br>
</div>
<div><a href="mailto:J.Schoffelen@donders.ru.nl" target="_blank">J.Schoffelen@donders.ru.nl</a></div>
<div>Telephone: +31-24-3614793</div>
<div><br>
</div>
<div><a href="http://www.hettaligebrein.nl" target="_blank">http://www.hettaligebrein.nl</a></div>
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