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<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;color:black">Dear
</span><span style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;color:black">이우용<span lang="EN-US"><o:p></o:p></span></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;color:black">Source.avg.pow is the power of the source in whatever unit the source reconstruction algorithm provide. The length of source.avg.pow should be
8196 representing one value per source point.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;color:black">How to obtain connectivity between brain regions does not have a straight forward answer. It depends on a lot of different processing steps and
decisions, e.g., how you define “brain regions”, what connectivity measure you are interest in, how you do the source reconstruction, etc.. You can take a look at ft_connectivityanalysis to see how and what you can calculate connectivity in FieldTrip. See
also the tutorials on FieldTrip website for more detailed <i>how to</i>: https://www.fieldtriptoolbox.org/tutorial/#connectivity-analysis<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;color:black">Best regards<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;color:black">Mikkel
</span><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">Fra:
</span></b><span style="font-size:12.0pt;color:black">fieldtrip <fieldtrip-bounces@science.ru.nl> på vegne af via fieldtrip <fieldtrip@science.ru.nl><br>
<b>Dato: </b>tirsdag, 25. oktober 2022 kl. 05.46<br>
<b>Til: </b>fieldtrip@science.ru.nl <fieldtrip@science.ru.nl><br>
<b>Cc: </b></span><span style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;color:black">이우용</span><span style="font-size:12.0pt;color:black"> <luy8357@naver.com><br>
<b>Emne: </b>[FieldTrip] ft_sourceanalysis - connectivity<o:p></o:p></span></p>
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<p><span style="font-size:13.5pt;font-family:DotumChe;color:black;background:white">hello, everyone</span><span style="font-family:"Gulim",sans-serif"> <o:p></o:p></span></p>
<p><span style="font-size:13.5pt;font-family:DotumChe;color:black;background:white">When using ft_sourceanalysis, (sourcemodel: cortex_8196.surf.gii')</span><span style="font-size:13.5pt;font-family:Roboto;color:black;background:whitesmoke">
</span><span style="font-size:13.5pt;font-family:DotumChe;color:black;background:white">If i use the lcmv method or the eloreta method, source.avg.pow is obtained.</span><span style="font-size:13.5pt;font-family:Roboto;color:black;background:whitesmoke">
<br>
<br>
</span><span style="font-family:"Gulim",sans-serif"><o:p></o:p></span></p>
<p><span style="font-size:13.5pt;font-family:DotumChe;color:black;background:white">As far as I know, I understood that pow represents connectivity between 8196 areas,</span><span style="font-size:13.5pt;font-family:Roboto;color:black;background:whitesmoke">
</span><span style="font-size:13.5pt;font-family:DotumChe;color:black;background:white">Is this correct?</span><span style="font-family:"Gulim",sans-serif"><o:p></o:p></span></p>
<p><span style="font-size:13.5pt;font-family:DotumChe;color:black;background:white">And if it is a wrong concept, what method is used to obtain connectivity between regions?</span><span style="font-family:"Gulim",sans-serif"><o:p></o:p></span></p>
<p><span style="font-size:13.5pt;font-family:DotumChe;color:black;background:white">and I was also wondering if there is a way to represent both negative and positive values in representing connectivity.</span><span style="font-family:"Gulim",sans-serif"> <o:p></o:p></span></p>
<p><span style="font-family:DotumChe;color:black;background:white"> </span><span style="font-family:"Gulim",sans-serif"><o:p></o:p></span></p>
<p><span style="font-size:12.0pt;font-family:DotumChe;color:black;background:white">Thank you and Best Regards</span><span style="font-family:"Gulim",sans-serif"> <o:p></o:p></span></p>
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