slicetiming for fmridata-objects

Perform slicetiming for fMRI data, idealy before preprocessing (registration). Recording times for slices are assumed to be equispaced between scans with argument sliceorder providing the order of slice acquisitions. Interpolation between slices is performed uing a sinc filter.

slicetiming(fmridataobj, sliceorder = NULL)

Arguments

fmridataobj	object of class fmridata
sliceorder	order of lice acqisions

Value

an object of class fmridata

Author

Joerg Polzehl polzehl@wias-berlin.de

See also

fmri.stimulus, fmri.design,fmri.lm,~~~

Examples

  if (FALSE) {
# Example 1
  data <- list(ttt=writeBin(rnorm(32*32*32*107), raw(), 4),
               mask=array(TRUE, c(32, 32, 32)), dim=c(32, 32, 32, 107))
  class(data) <- "fmridata"
  data <- slicetiming(data,sliceorder=1:32)
  ## provides data corrected for sequential slice acquisition in linear order
}