MAPT and Alzheimer disease: Still, strength of hippocampal‐medial parietal lobe connectivity has previously been shown to relate to tau pathology burden in the medial parietal lobe cross‐sectionally (Ziontz et al. 2021; Jacobs et al. 2018), and disruption of hippocampal network connectivity has been proposed as the basis of cognitive deficits in AD (La Joie et al. 2014).