PowerPoint Presentation

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•The 3d* series of programs (generally) take as input one or more AFNI datasets, and produce as output one (or more) new AFNI datasets

•Time series activation analysis programs:

H3dfim, 3dfim+, 3ddelay

Variations on ‘classical’ correlation analysis of each voxel’s time series with a single reference (ideal) waveform

H3dDeconvolve:

Multiple linear regression and/or linear deconvolution to fit each voxel’s time series to a mulit-dimensional signal model (similar models are found in SPM)

H3dNLfim:

Nonlinear regression to fit each voxel’s time series to an arbitrary functional model provided by the user

•Time series utility programs:

H3dFourier:

Fourier domain filtering voxels time series

H3dTcorrelate:

Compute correlation coefficient of 2 datasets, voxel-by-voxel

H3dTsmooth:

Smooth voxel time series