<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi Denis,<div class=""><br class=""></div><div class="">Thank you so much. </div><div class=""><br class=""></div><div class="">Yes I can compute time-frequency connectivity to get time resolved connectivity. </div><div class=""><br class=""></div><div class="">While I still have a more general question. When computing connectivity for band/time containing the evoked response, the result reflects true connectivity but also <span style="color: rgb(69, 69, 69);" class="">artifactual connectivity driven by </span><span style="color: rgb(69, 69, 69);" class="">evoke response of stimuli(eg: visual stimuli). </span><span style="color: rgb(69, 69, 69);" class="">For example, if there is time delay between the evoke response of two independent </span><span style="color: rgb(69, 69, 69);" class="">areas (A and B), the spurious connectivity between these A and B will be revealed. So in some studies, people remove evoked response from data before calculating the connectivity. But in examples in MNE-python, is there any consideration about this point?</span></div><div class=""><span style="color: rgb(69, 69, 69);" class=""><br class=""></span></div><div class=""><span style="color: rgb(69, 69, 69);" class="">Best,</span></div><div class=""><span style="color: rgb(69, 69, 69);" class=""><br class=""></span></div><div class=""><span style="color: rgb(69, 69, 69);" class="">Xiaoxu</span></div><div class=""><span style="color: rgb(69, 69, 69);" class=""><br class=""></span></div><div class=""><span style="color: rgb(69, 69, 69);" class=""><br class=""></span></div><div class=""><span style="color: rgb(69, 69, 69);" class=""><br class=""></span></div><div class=""><span style="color: rgb(69, 69, 69);" class=""><br class=""></span></div><div class=""><span style="color: rgb(69, 69, 69);" class=""><br class=""></span></div><div class=""><span style="color: rgb(69, 69, 69);" class=""><br class=""></span></div><div class=""><div><blockquote type="cite" class=""><div class="">On Apr 12, 2017, at 3:42 PM, Denis-Alexander Engemann <<a href="mailto:denis.engemann@gmail.com" class="">denis.engemann@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Hi Dave,<div class=""><br class=""></div><div class="">no all is computed across trials. When using a continuous Morlet Wavelet the cross-spectral density matrix is time-resolved but the same metrics can be computed. You always consume the trials dimensions in both case, irrespective of the connectivity metric.</div><div class=""><br class=""></div><div class="">Hope that helps,</div><div class="">Denis</div></div><br class=""><div class="gmail_quote"><div dir="ltr" class="">On Wed, Apr 12, 2017 at 4:15 PM David I Leitman <<a href="mailto:leitman@mail.med.upenn.edu" class="">leitman@mail.med.upenn.edu</a>> wrote:<br class=""></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word" class="gmail_msg"><div dir="auto" style="word-wrap:break-word" class="gmail_msg">Hi Dennis,<div class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg"> I don’t mean to bud in, but a quick question</div><div class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg">are both of these examples</div><div class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg"><a href="http://www.martinos.org/mne/stable/auto_examples/connectivity/plot_mne_inverse_connectivity_spectrum.html#sphx-glr-auto-examples-connectivity-plot-mne-inverse-connectivity-spectrum-py" class="gmail_msg" target="_blank">http://www.martinos.org/mne/stable/auto_examples/connectivity/plot_mne_inverse_connectivity_spectrum.html#sphx-glr-auto-examples-connectivity-plot-mne-inverse-connectivity-spectrum-py</a></div><div class="gmail_msg"><a href="http://www.martinos.org/mne/stable/auto_examples/connectivity/plot_cwt_sensor_connectivity.html#sphx-glr-auto-examples-connectivity-plot-cwt-sensor-connectivity-py" class="gmail_msg" target="_blank">http://www.martinos.org/mne/stable/auto_examples/connectivity/plot_cwt_sensor_connectivity.html#sphx-glr-auto-examples-connectivity-plot-cwt-sensor-connectivity-py</a></div><div class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg">calculating phase connectivity across trials that is- wPLI is calculated from the phase angle difference distributions at a particular point across trials</div><div class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg">or is one or both often calculating phase angle differences from multiple points across the time from within each trial that is wPLI across time? </div><div class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg">thanks //dave</div></div></div><div style="word-wrap:break-word" class="gmail_msg"><div dir="auto" style="word-wrap:break-word" class="gmail_msg"><div class="gmail_msg"><br class="gmail_msg"><blockquote type="cite" class="gmail_msg">
<div class="m_-6061372045433441830page gmail_msg" title="Page 328">
<div class="gmail_msg m_-6061372045433441830section">
<div class="gmail_msg m_-6061372045433441830layoutArea">
<div class="m_-6061372045433441830column gmail_msg"><div class="gmail_msg"><span style="font-size:8pt;font-family:StoneSerifStd" class="gmail_msg">
</span><br class="gmail_msg m_-6061372045433441830webkit-block-placeholder"></div>
</div>
</div>
</div>
</div></blockquote><div class="gmail_msg"><blockquote type="cite" class="gmail_msg"><div class="gmail_msg">On Apr 12, 2017, at 9:08 PM, Denis-Alexander Engemann <<a href="mailto:denis.engemann@gmail.com" class="gmail_msg" target="_blank">denis.engemann@gmail.com</a>> wrote:</div><br class="gmail_msg m_-6061372045433441830Apple-interchange-newline"><div class="gmail_msg">Hi!<br class="gmail_msg">You can checkout the "cwt_morlet" option to get time resolved connectivity. See this example <a href="http://www.martinos.org/mne/stable/auto_examples/connectivity/plot_cwt_sensor_connectivity.html#sphx-glr-auto-examples-connectivity-plot-cwt-sensor-connectivity-py" class="gmail_msg" target="_blank">http://www.martinos.org/mne/stable/auto_examples/connectivity/plot_cwt_sensor_connectivity.html#sphx-glr-auto-examples-connectivity-plot-cwt-sensor-connectivity-py</a><br class="gmail_msg"><br class="gmail_msg">Hope that helps,<br class="gmail_msg">Denis<br class="gmail_msg"><div class="gmail_quote gmail_msg"><div dir="ltr" class="gmail_msg">On Wed, 12 Apr 2017 at 15:02, daisy <<a href="mailto:smartcandies@163.com" class="gmail_msg" target="_blank">smartcandies@163.com</a>> wrote:<br class="gmail_msg"></div><blockquote class="gmail_quote gmail_msg" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word" class="gmail_msg">Hi All,<div class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg">I have two questions when I compute source space connectivity. </div><div class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg">(1) <span style="color:rgb(69,69,69)" class="gmail_msg">Is mne.connectivity.spectral_connectivity designed for stimulus-evoked data </span><span style="color:rgb(69,69,69);line-height:normal;font-family:'PingFang SC'" class="gmail_msg">？(Because I notice that the example data was stimulus-evoked.)</span></div><div class="gmail_msg"><span style="color:rgb(69,69,69);line-height:normal;font-family:'PingFang SC'" class="gmail_msg">(2) I want to know whether the connectivity was changed over time. </span><span style="color:rgb(69,69,69)" class="gmail_msg">Can I compute the connectivity under different time window (eg: 100-150ms, 150-200ms after stimulus onset). Is it reasonable?</span><span style="color:rgb(69,69,69)" class="gmail_msg"> </span></div><div class="gmail_msg"><span style="color:rgb(69,69,69)" class="gmail_msg"><br class="gmail_msg"></span></div><div class="gmail_msg"><span style="color:rgb(69,69,69)" class="gmail_msg">Could anyone help me ?</span></div><div class="gmail_msg"><span style="color:rgb(69,69,69)" class="gmail_msg"><br class="gmail_msg"></span></div><div class="gmail_msg"><span style="color:rgb(69,69,69)" class="gmail_msg">Thank you so much.</span></div><div class="gmail_msg"><span style="color:rgb(69,69,69)" class="gmail_msg"><br class="gmail_msg"></span></div><div class="gmail_msg"><span style="color:rgb(69,69,69)" class="gmail_msg">-Best</span></div><div class="gmail_msg"><span style="color:rgb(69,69,69)" class="gmail_msg"><br class="gmail_msg"></span></div><div class="gmail_msg"><font color="#454545" class="gmail_msg">Xiaoxu</font></div><div class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg"><br class="gmail_msg"><div class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg"><br class="gmail_msg"></div></div></div>_______________________________________________<br class="gmail_msg">
Mne_analysis mailing list<br class="gmail_msg">
<a href="mailto:Mne_analysis@nmr.mgh.harvard.edu" class="gmail_msg" target="_blank">Mne_analysis@nmr.mgh.harvard.edu</a><br class="gmail_msg">
<a href="https://mail.nmr.mgh.harvard.edu/mailman/listinfo/mne_analysis" rel="noreferrer" class="gmail_msg" target="_blank">https://mail.nmr.mgh.harvard.edu/mailman/listinfo/mne_analysis</a><br class="gmail_msg">
<br class="gmail_msg">
<br class="gmail_msg">
The information in this e-mail is intended only for the person to whom it is<br class="gmail_msg">
addressed. If you believe this e-mail was sent to you in error and the e-mail<br class="gmail_msg">
contains patient information, please contact the Partners Compliance HelpLine at<br class="gmail_msg">
<a href="http://www.partners.org/complianceline" rel="noreferrer" class="gmail_msg" target="_blank">http://www.partners.org/complianceline</a> . If the e-mail was sent to you in error<br class="gmail_msg">
but does not contain patient information, please contact the sender and properly<br class="gmail_msg">
dispose of the e-mail.<br class="gmail_msg">
</blockquote></div>
_______________________________________________<br class="gmail_msg">Mne_analysis mailing list<br class="gmail_msg"><a href="mailto:Mne_analysis@nmr.mgh.harvard.edu" class="gmail_msg" target="_blank">Mne_analysis@nmr.mgh.harvard.edu</a><br class="gmail_msg"><a href="https://mail.nmr.mgh.harvard.edu/mailman/listinfo/mne_analysis" class="gmail_msg" target="_blank">https://mail.nmr.mgh.harvard.edu/mailman/listinfo/mne_analysis</a><br class="gmail_msg"><br class="gmail_msg"><br class="gmail_msg">The information in this e-mail is intended only for the person to whom it is<br class="gmail_msg">addressed. If you believe this e-mail was sent to you in error and the e-mail<br class="gmail_msg">contains patient information, please contact the Partners Compliance HelpLine at<br class="gmail_msg"><a href="http://www.partners.org/complianceline" class="gmail_msg" target="_blank">http://www.partners.org/complianceline</a> . If the e-mail was sent to you in error<br class="gmail_msg">but does not contain patient information, please contact the sender and properly<br class="gmail_msg">dispose of the e-mail.<br class="gmail_msg"></div></blockquote></div><br class="gmail_msg"></div></div></div>_______________________________________________<br class="gmail_msg">
Mne_analysis mailing list<br class="gmail_msg">
<a href="mailto:Mne_analysis@nmr.mgh.harvard.edu" class="gmail_msg" target="_blank">Mne_analysis@nmr.mgh.harvard.edu</a><br class="gmail_msg">
<a href="https://mail.nmr.mgh.harvard.edu/mailman/listinfo/mne_analysis" rel="noreferrer" class="gmail_msg" target="_blank">https://mail.nmr.mgh.harvard.edu/mailman/listinfo/mne_analysis</a><br class="gmail_msg">
<br class="gmail_msg">
<br class="gmail_msg">
The information in this e-mail is intended only for the person to whom it is<br class="gmail_msg">
addressed. If you believe this e-mail was sent to you in error and the e-mail<br class="gmail_msg">
contains patient information, please contact the Partners Compliance HelpLine at<br class="gmail_msg">
<a href="http://www.partners.org/complianceline" rel="noreferrer" class="gmail_msg" target="_blank">http://www.partners.org/complianceline</a> . If the e-mail was sent to you in error<br class="gmail_msg">
but does not contain patient information, please contact the sender and properly<br class="gmail_msg">
dispose of the e-mail.<br class="gmail_msg">
</blockquote></div>
_______________________________________________<br class="">Mne_analysis mailing list<br class=""><a href="mailto:Mne_analysis@nmr.mgh.harvard.edu" class="">Mne_analysis@nmr.mgh.harvard.edu</a><br class="">https://mail.nmr.mgh.harvard.edu/mailman/listinfo/mne_analysis<br class=""><br class=""><br class="">The information in this e-mail is intended only for the person to whom it is<br class="">addressed. If you believe this e-mail was sent to you in error and the e-mail<br class="">contains patient information, please contact the Partners Compliance HelpLine at<br class="">http://www.partners.org/complianceline . If the e-mail was sent to you in error<br class="">but does not contain patient information, please contact the sender and properly<br class="">dispose of the e-mail.<br class=""><br class=""></div></blockquote></div><br class=""></div></body></html>