dafni

Looking at time series - linear regression reprise

JJ

The aims of this lesson are. Use spm and assorted tools (in matlab if you want) to:

• load in 4d image (nifti) and select out a particular voxel’s timecourse
• inspect the data that gives rise to the design matrix again. Where is that information stored in spm? Can you make a figure of it?
• Go through the logic of how how t-stat is calculated, given $\beta$-weights, residuals, design matrix and contrast vector.

Think about storing your work in a script, so you can modify and adjust it later.

Can you find a way to turn some of this information into a figure for your report?