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Difference in allostatic interoceptive network connectivity by cognitive status

The allostatic interoceptive network (AIN) has been proposed as central to linking interoceptive processing and autonomic regulation and involved in emotional experience. Early pathologic changes in AD occur in hubs of the AIN, and changes in emotional reactivity have been identified at both the MCI and dementia stages of Alzheimer’s disease. Interoception has been proposed as a core feature in psychiatric disease, though relatively little attention has been paid to altered interoception in neuropsychiatric symptoms in dementia. We conducted a pilot analysis in cognitively normal (CN) participants and those with mild cognitive impairment (MCI) to identify alterations in functional connectivity of the AIN, default mode, and salience networks.