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

  function [STM, Xs] = ft_omri_slice_time_apply(STM, X)
  Put new scan X through slice time correction, by linear interpolation
  with last scan. The return value Xs is the signal sampled at deltaT = 0
  relative to the most recent scan.