<div dir="ltr"><div><br></div><div>Hello trippers, </div><div><br></div><div>I am confused with the 'cfg.method' for ITC.</div><div><br></div><div>After examining the previous discussion list, I found method for ITC calculation as below. </div>
<div><br></div><div><div><i>tmpdat = freq.fourierspctrm;</i></div><div><i>tmpdat = tmpdat./abs(tmpdat); % this will normalise each trial for its amplitude;</i></div><div><i>itc = abs(mean(tmpdat)); % this will give the itc</i></div>
</div><div><br></div><div>In addition, for this method, the ft_freqanalysis should have configuration as below. </div><div><br></div><div><div><i>cfg = [];</i></div><div><i>cfg.keeptrials = 'yes';</i></div><div><i>cfg.keeptapers = 'yes';</i></div>
<div><i>cfg.output = 'fourier';</i></div><div><i>cfg.channel = 'all';</i></div><div><i>cfg.method = 'mtmfft';</i></div><div><i>cfg.foi = 20:1:60;</i></div><div><i>cfg.toi = -0.5:0.01:1.5;</i></div>
<div><i>cfg.tapsmofrq = 4;</i></div><div><i>cfg.taper = 'hanning';</i></div><div><br></div><div>However, I use 'wavelet' for the calculation of gamma band now. </div></div><div><br></div><div>Should I use 'mtmfft' for the calucation of ITC?</div>
<div><br></div><div>In case of 'wavelet', the result of itc has 4-D data - trial (averaged) * channel * freq * time</div><div>Meanwhile, in case of 'mtmfft' the result has 3D data - trial (averaged) * channel * freq without time. </div>
<div>Which structure is right? </div><div><br></div><div>And, if I want to calculate the mean value of ITC of a group, </div><div>is the order of the processing below right? :</div><div>preprocessed data of each individual -> time-frequency analysis -> calculate ITC -> grandaverage </div>
<div><br></div><div>With regards.</div><div><br></div><div><br></div>-- <br><div dir="ltr"><div><font face="arial, helvetica, sans-serif">BeomJun Min, M.D.</font></div><div><font face="arial, helvetica, sans-serif"><br></font></div>
<div><font face="arial, helvetica, sans-serif"><span style="color:rgb(51,51,51);line-height:18px">Department of Medical System Engineering (DMSE)<br></span><span style="color:rgb(51,51,51);line-height:18px">Gwangju Institute of Science and Technology (GIST)</span><span style="color:rgb(51,51,51);line-height:18px"> </span><span style="color:rgb(51,51,51);line-height:18px"><br>
261 Cheomdan-gwagiro(Oryong-dong), Buk-gu, Gwangju <br>500-712, Republic of Korea (South) <br>Phone: +82-62-715-3266 / Fax: +82-62-715-3244 <br>E-mail: </span><a href="mailto:mbj0310@gmail.com" style="text-decoration:none;line-height:18px" target="_blank"><span>mbj0310@gmail.com</span></a><span style="color:rgb(51,51,51);line-height:18px">, <a href="http://bmssa.gist.ac.kr/" style="text-decoration:none" target="_blank">http://bmssa.gist.ac.kr</a></span></font><br>
</div></div>
</div>