FieldTrip

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

  FT_SPIKE_TRIGGEREDSPECTRUM computes the Fourier spectrum of the LFP
  around the spikes. The difference to FT_SPIKETRIGGEREDSPECTRUM is that
  this function allows for multiple frequencies to be processed with
  different time-windows per frequency.
 
  The input SPIKE should be organised as the spike or the raw datatype, obtained from
  FT_SPIKE_MAKETRIALS or FT_PREPROCESSING (in that case, conversion is done
  within the function)
 
  The input DATA should be organised as the raw datatype, obtained from
  FT_PREPROCESSING
 
  Use as
    [freq] = ft_spike_triggeredspectrum(cfg,data,spike)
 
  Important is that data.time and spike.trialtime should be referenced
  relative to the same trial trigger times!
 
  Configurations:
      cfg.tapsmofrq    = vector 1 x numfoi, the amount of spectral smoothing through
                         multi-tapering. Note that 4 Hz smoothing means
                         plus-minus 4 Hz, i.e. a 8 Hz smoothing box.
      cfg.foi          = vector 1 x numfoi, frequencies of interest
      cfg.taper        = 'dpss', 'hanning' or many others, see WINDOW (default = 'dpss')
      cfg.t_ftimwin    = vector 1 x numfoi, length of time window (in seconds)
      cfg.spikechannel = cell-array with selection of channels (default = 'all')
                         see FT_CHANNELSELECTION for details
      cfg.channel      = Nx1 cell-array with selection of channels (default = 'all'),
                         see FT_CHANNELSELECTION for details
      cfg.borderspikes = 'yes' (default) or 'no'. If 'yes', we process the spikes
                         falling at the border using an LFP that is not centered
                         on the spike.
      cfg.taperopt     = parameter that goes in WINDOW function (only
                         applies to windows like KAISER)
  If the triggered spike leads a spike in another channel, then the angle
  of the Fourier spectrum of that other channel will be negative.