Figure 2.

Study workflow and operationalization of crossed cerebellar diaschisis (CCD) (a) and frequency of CCD by clinical diagnosis (b).

BG: basal ganglia; AI: asymmetry index; Front.: frontal; Par.: parietal; Temp.: temporal; Occ.: occipital; CBS: corticobasal syndrome; svPPA: semantic variant primary progressive aphasia; lvPPA: logopenic variant primary progressive aphasia; PCA: posterior cortical atrophy; nfvPPA: non-fluent variant primary progressive aphasia; tAD: Alzheimer’s disease dementia (typical); bvFTD: behavioral variant frontotemporal degeneration; PSP: progressive supranuclear palsy; MCI: mild cognitive impairment.