Differences

This shows you the differences between two versions of the page.

Link to this comparison view

reference:ft_crossfrequencyanalysis [2018/08/23 14:43] (current)
Line 1: Line 1:
 +=====  FT_CROSSFREQUENCYANALYSIS =====
 +
 +Note that this reference documentation is identical to the help that is displayed in MATLAB when you type "help ft_crossfrequencyanalysis"​.
 +
 +<​html><​pre>​
 +  <a href=/​reference/​ft_crossfrequencyanalysis><​font color=green>​FT_CROSSFREQUENCYANALYSIS</​font></​a>​ performs cross-frequency analysis
 + 
 +  Use as
 +    crossfreq = ft_crossfrequencyanalysis(cfg,​ freq)
 +    crossfreq = ft_crossfrequencyanalysis(cfg,​ freqlo, freqhi)
 + 
 +  The input data should be organised in a structure as obtained from the
 +  <a href=/​reference/​ft_freqanalysis><​font color=green>​FT_FREQANALYSIS</​font></​a>​ function. The configuration should be according to
 + 
 +    cfg.freqlow ​   = scalar or vector, selection of frequencies for the low frequency data
 +    cfg.freqhigh ​  = scalar or vector, selection of frequencies for the high frequency data
 +    cfg.channel ​   = cell-array with selection of channels, see <a href=/​reference/​ft_channelselection><​font color=green>​FT_CHANNELSELECTION</​font></​a>​
 +    cfg.method ​    = string, can be
 +                      '​coh'​ - coherence
 +                      '​plv'​ - phase locking value
 +                      '​mvl'​ - mean vector length
 +                      '​mi' ​ - modulation index
 +    cfg.keeptrials = string, can be '​yes'​ or '​no'​
 + 
 +  Various metrics for cross-frequency coupling have been introduced in a number of
 +  scientific publications,​ but these do not use a sonsistent method naming scheme,
 +  nor implement it in exactly the same way. The particular implementation in this
 +  code tries to follow the most common format, generalizing where possible. If you
 +  want details about the algorithms, please look into the code.
 + 
 +  The modulation index implements
 +    Tort A. B. L., Komorowski R., Eichenbaum H., Kopell N. (2010). Measuring Phase-Amplitude
 +    Coupling Between Neuronal Oscillations of Different Frequencies. J Neurophysiol 104:
 +    1195?1210. doi:​10.1152/​jn.00106.2010
 + 
 +  See also <a href=/​reference/​ft_freqanalysis><​font color=green>​FT_FREQANALYSIS</​font></​a>,​ <a href=/​reference/​ft_connectivityanalysis><​font color=green>​FT_CONNECTIVITYANALYSIS</​font></​a>​
 +</​pre></​html>​