Hi huilee92 and scchester,

I just encountered exactly the same error with WFU_PickAtlas “Results Viewer” under SPM12 + MATLAB R2024a:

From extensive debugging I found the cause: in wfu_results_defaults.m, around line 46-53 the code does:

In MATLAB R2024a (and in some multi-monitor setups) the vectors hind and vind may differ in length, so hind==vind leads to the “Array dimensions must agree” error.

Fix: replace that block with something like

After applying this patch and restarting MATLAB, the Results Viewer now works correctly in my setup.

If you like, I can share the full patched wfu_results_defaults.m and my version details (MATLAB R2024a, SPM12 r7771, PickAtlas 3.0.5b).

Note: If you're searching for wfu_results_defaults.m: it's located in .../wfu_results/private/ — being under a private/ folder, it won't show up using which or edit unless called from the parent function.

Hope this helps you too!

Best wishes,

Yoshikazu Nakano