Preservation analysis shows only few tissue specific modules. The Z-summary is a measure for module preservation. Values less than 2 (red lines) indicate no preservation, between 2 and 10 (blue lines) module structures are preserved and above 10 the module structure is highly preserved. Preservation analysis of cerebellum modules in the caudate nucleus (A) and frontal cortex BA4 region dataset (B). Preservation analysis of frontal cortex BA4 region modules in the cerebellum (C) and caudate nucleus dataset (D). Preservation analysis of caudate nucleus modules in the cerebellum (E) and frontal cortex BA4 region dataset (F).