PowerPoint Presentation - Time Series Analysis in AFNI

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Extra Features of 3dDeconvolve - 3

• File contrasts/contr_HvsL.txt = 0 0 0 0 0 0 0 0 0 0 1 -1

• Goal is to test if bHighC– bLowC ¹ 0

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• File contrasts/contr_ATvsHL.txt = 0 0 0 0 0 0 0 0 1 1 -1 -1

• Goal is to test if (bActions+ bTool)– (bHighC+ bLowC) ¹ 0

• Regions where this statistic is significant will have had different amounts of BOLD signal change in the activity viewing tasks versus the grating viewing tasks

•This is a way to factor out primary visual cortex

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• -glt_label 3 ATvsHL option is used to attach a meaningful label to the resulting statistics sub-bricks