PowerPoint Presentation - Time Series Analysis in AFNI

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Data Analysis Script

Ą In file epi_r1_decon:

waver -GAM \

-input epi_r1_stim.1D \

-TR 2.5 \

> epi_r1_ideal.1D

3dvolreg -base 2 \

-prefix epi_r1_reg \

-1Dfile epi_r1_mot.1D \

-verb \

epi_r1+orig

3dDeconvolve \

-input epi_r1_reg+orig \

-nfirst 2 \

-num_stimts 1 \

-stim_file 1 epi_r1_ideal.1D \

-stim_label 1 AllStim \

-tout \

-bucket epi_r1_func \

-fitts epi_r1_fitts

Ą waver creates model time series from input stimulus timing in file epi_r1_stim.1D

Ą Plot a 1D file to screen with

1dplot epi_r1_ideal.1D

3dvolreg (3D image registration) will be covered in a later presentation

Ą 3dDeconvolve = regression code

Ą Name of input dataset

Ą Index of first sub-brick to process

Ą Number of input model time series

Ą Name of first input model time series file

Ą Name for results in AFNI menus

Ą Indicates to output t-statistic for b weights

Ą Name of output ŇbucketÓ dataset (statistics)

Ą Name of output model fit dataset