“…Similar salience network connectivity enhancements have also been reported in asymptomatic adults at genetic risk for AD ( Machulda et al, 2011 ) and in individuals with mild cognitive impairment (MCI) ( Bai et al, 2009 ), a clinical stage that often precedes AD dementia. In addition to lower scores on tests of episodic memory ( Hedden et al, 2013 ), cognitively healthy older adults with elevated Aβ have greater increases in neuroticism ( Binette et al, 2021 , Fredericks et al, 2018 , Snitz et al, 2015 , Terracciano et al, 2021 ) as well as higher depression ( Donovan et al, 2018 , Yasuno et al, 2016 ) and loneliness ( Donovan et al, 2016 ) than their peers, affective changes that may reflect enhanced connectivity in the salience network ( Balthazar et al, 2014 , Fredericks et al, 2018 , Zhou et al, 2010 ).…”