Fig. 2

The semantic-logopenic continuum. A schematic representation of the space where all patients are distributed across the PAMS profiles and the language features. Curves represent the profiles, and relevant qualitative features for each profile are represented on the abscissa delimiting the area of each profile. Colored circles represent PPA patients. The position of each patient within the profile is determined on the basis of the feature more compromised, with patients nearer to the most impaired feature of the respective profile. Colored areas of the continuum indicate the color of the type of patients mainly populating the area. For example, the yellow area, characterized by the 2D profile, is mostly populated by the yellow circles representing svPPA patients