FieldTrip

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

  FT_SPIKE_ISIHIST computes the interspike interval distribution and statistics.
 
  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)
 
  Use as
    [isih] = ft_spike_isihist(cfg, spike)
 
  Configurations:
    cfg.outputunit       = 'spikecount' (default) or 'proportion' (sum of all bins = 1).
    cfg.spikechannel     = string or index of single spike channel to trigger on (default = 'all')
                           See FT_CHANNELSELECTION for details
    cfg.trials           = numeric selection of trials (default = 'all')
    cfg.bins             = vector of isi bins.
    cfg.latency          = [begin end] in seconds, 'max' (default), 'min', 'prestim'(t<=0), or
                           'poststim' (t>=0).
                           If 'max', we use all available latencies.
                           If 'min', we use only the time window contained by all trials.
                           If 'prestim' or 'poststim', we use time to or from 0.
    cfg.gammafit         = 'yes', or 'no' (default), if 'yes', we fit a gamma
                           distribution to the raw isi times.
 `
  Outputs:
    isih.avg             = nUnits-by-nBins interspike interval histogram
    isih.time            = bincenters corresponding to ISIH.ISIH.
    isih.gammashape      = shape parameter of fitted gamma distribution.
    isih.gammascale      = scale parameterof fitted gamma distribution.
    isih.coeffvar        = coefficient of variation (std/mean of isi).
    isih.isi             = 1-by-nUnits cell with interval to next spike per spike.
    isih.label