Figure 5 (A, B) OI dysfunction is mediated by MMSE(A) and OT(B) in patients with GPI. GPI – general paresis of the insane; HCs – healthy controls; MMSE – Mini-Mental State Examination; OT – odor threshold; OI – odor identification. Path (a) represents the effect of group on MMSE or OT, whereas path (b) is the effect of MMSE or OT on OI after removing the effect of group (GPI vs HCs). The indirect effect is computed by multiplying the effects of (a) and (b). Path (c) denotes the effect of group on OI. Path (c’) represents the effect of group on OI while controlling for the indirect effect. Microsoft PowerPoint 2003, developed by Microsoft, for creating our diagrams.