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• W2901739937 abstract "The default-mode network (DMN) is affected by advancing age, where particularly long-range connectivity has been consistently reported to be reduced as compared to young individuals. We examined whether there were any differences in the effects of intermittent theta-burst stimulation (iTBS) in DMN connectivity between younger and older adults, its associations with cognition and brain integrity, as well as with long-term cognitive status. Twenty-four younger and 27 cognitively normal older adults were randomly assigned to receive real or sham iTBS over the left inferior parietal lobule between two resting-state functional magnetic resonance imaging (rs-fMRI) acquisitions. Three years later, those older adults who had received real iTBS underwent a cognitive follow-up assessment. Among the younger adults, functional connectivity increased following iTBS in distal DMN areas from the stimulation site. In contrast, older adults exhibited increases in connectivity following iTBS in proximal DMN regions. Moreover, older adults with functional responses to iTBS resembling those of the younger participants exhibited greater brain integrity and higher cognitive performance at baseline and at the 3-year follow-up, along with less cognitive decline. Finally, we observed that ‘young-like’ functional responses to iTBS were also related to the educational background attained amongst older adults. The present study reveals that functional responses of the DMN to iTBS are modulated by age. Furthermore, combining iTBS and rs-fMRI in older adults may allow characterizing distinctive cognitive profiles in aging and its progression, probably reflecting network plasticity systems that may entail a neurobiological substrate of cognitive reserve." @default.
• W2901739937 created "2018-11-29" @default.
• W2901739937 creator A5001262243 @default.
• W2901739937 creator A5007618142 @default.
• W2901739937 creator A5020410104 @default.
• W2901739937 creator A5042496555 @default.
• W2901739937 creator A5048847860 @default.
• W2901739937 creator A5049553042 @default.
• W2901739937 creator A5054762575 @default.
• W2901739937 creator A5056623917 @default.
• W2901739937 creator A5079642777 @default.
• W2901739937 date "2019-03-01" @default.
• W2901739937 modified "2023-10-18" @default.
• W2901739937 title "Age-related differences in default-mode network connectivity in response to intermittent theta-burst stimulation and its relationships with maintained cognition and brain integrity in healthy aging" @default.
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