Publications by authors named "Holly Gagnon"
Article Synopsis
- Age-related neural dedifferentiation refers to the decline in the uniqueness of neural representations, which correlates with decreased cognitive abilities in older adults.
- Research suggests that lower levels of the inhibitory neurotransmitter GABA in older adults may be a key factor in this decline.
- Using magnetic resonance spectroscopy and functional MRI, the study found that older participants had reduced GABA levels and less distinct neural activation patterns compared to younger adults, indicating a link between GABA levels and neural distinctiveness in the aging brain.
Normal aging is associated with declines in sensorimotor function. Previous studies have linked age-related behavioral declines to decreases in neural differentiation (i.e.
View Article and Find Full Text PDFNeural activation patterns in the ventral visual cortex in response to different categories of visual stimuli (e.g., faces vs.
View Article and Find Full Text PDFBackground: Aging is often associated with behavioral impairments, but some people age more gracefully than others. Why? One factor that may play a role is individual differences in the distinctiveness of neural representations. Previous research has found that neural activation patterns in visual cortex in response to different visual stimuli are often more similar (i.
View Article and Find Full Text PDFAging is typically associated with declines in sensorimotor performance. Previous studies have linked some age-related behavioral declines to reductions in network segregation. For example, compared to young adults, older adults typically exhibit weaker functional connectivity within the same functional network but stronger functional connectivity between different networks.
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