Fig. 3.

DCM model space. Fourteen individual models (#1–14) were constructed that belong to one of four model families, including Family A: Left-lateralized connectivity (i.e., no/minimal damage), Family B: Bilateral anterior-weighted connectivity (i.e., posterior damage models), Family C: Bilateral posterior-weighted connectivity (i.e., anterior damage models) and Family D: Right-lateralized connectivity (i.e., extensive left hemisphere damage). Latent connections (denoted by gray lines) were specified between all intrahemispheric ROIs and between interhemispheric homologues. The direction of task-modulated connections (denoted by the arrowhead) varied from model to model and was specified according to hypotheses regarding network connectivity patterns in healthy individuals and PWA. Task input (indicated by thick yellow arrows) was modeled to LITG and/or RITG in each model.