In this study, greater upper alpha band connectivity between the prefrontal and posterior parietal areas was associated with better performance on the delayed recall condition of the RCFT in the BD group. This result could support expectations that RCFT performance requires interaction between the frontal and parietal areas and that the upper alpha connection in the frontal-posterior parietal area is involved in retrieving stored information. As increased connectivity is considered to reflect a compensatory mechanism for other damaged connections (Coullaut-Valera et al., 2014; Correas et al., 2015), the results of the present correlation analysis suggest that BD could produce detrimental effects on structural connections.
