Table 16: Intrinsic connectivity network patterns in dementias.

Dementia subtypeIntrinsic connectivity pattern

AlzheimerDefault mode network shows reduced connectivity
FTD behavioral variantSalience network shows reduced connectivity
Parkinson’sBN-thalamocortical loops show
increased connectivity
DLBDUncertain at present but may show ascending brainstem projection system
CBGUncertain

FTD: frontotemporal lobe disorder, DLDB: diffuse lewy body disease, BN: basal nuclei (basal ganglia), CBG: corticobasal-ganglionic disorder.
Adapted and modified from [35].