A team from the University of Geneva (UNIGE) has uncovered the ways in which negative emotions have a lasting impact on brain activity in older adults. The onset of neurodegenerative diseases and dementia is believed to be promoted by negative emotions, anxiety, and depression. However, the impac
These findings suggest that better managing negative emotions may help reduce neurodegeneration.
The neuronal connections of older adults exhibit significant emotional rigidity: negative emotions excessively and persistently alter these connections, particularly in the posterior cingulate cortex and the amygdala – two brain regions that play crucial roles in emotion regulation and autobiographical memory., indicate that better management of these emotions – through meditation for example – could help limit neurodegeneration.
‘‘Our aim was to determine what cerebral trace remains after the viewing of emotional scenes, in order to evaluate the brain’s reaction, and, above all, its recovery mechanisms. We focused on the older adults, in order to identify possible differences between normal and pathological aging,’’ says Patrik Vuilleumier, professor in the Department of Basic Neurosciences at the Faculty of Medicine and at the Swiss Centre for Affective Sciences at the UNIGE, who co-directed this work.
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