FieldTrip

Note that this reference documentation is identical to the help that is displayed in Matlab when you type “help statfun_diff_itc”.

  STATFUN_diff_itc computes the difference in the inter-trial
  coherence (ITC) between two conditions. The input data for this test
  should consist of complex-values spectral estimates, e.g. computed
  using FT_FREQANALYSIS with method=mtmfft, wavelet or mtmconvcol.
 
  The ITC is a measure of phase consistency over trials. By randomlly
  shuffling the trials  between the two consitions and repeatedly
  computing the ITC difference, you can test the significance of the
  two conditions having a different ITC.
 
  A difference in the number of trials poer condition will affect the
  ITC, however since the number of trials remains the same for each
  random permutation, this bias is reflected in the randomization
  distribution.
 
  Use this function by calling 
    [stat] = ft_freqstatistics(cfg, freq1, freq2, ...)
  with the following configuration options
    cfg.statistic = 'diff_itc'
    cfg.method    = 'montecarlo'
  and optionally (for use in the statfun) the option
   cfg.complex = 'diffabs' to compute the difference of the absolute ITC values, or
   cfg.complex = 'absdiff' to compute the absolute value of the difference in the complex ITC values
  
  See FT_FREQSTATISTICS and STATISTICS_MONTECARLO for more details