Browsing by Author "Diaz, Michele T"
Now showing items 1-12 of 12
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Age mediation of frontoparietal activation during visual feature search.
(Neuroimage, 2014-11-15)Activation of frontal and parietal brain regions is associated with attentional control during visual search. We used fMRI to characterize age-related differences in frontoparietal activation in a highly efficient feature ... -
Age-related differences in resolving semantic and phonological competition during receptive language tasks.
(Neuropsychologia, 2016-12)Receptive language (e.g., reading) is largely preserved in the aging brain, and semantic processes in particular may continue to develop throughout the lifespan. We investigated the neural underpinnings of phonological and ... -
Age-related differences in the neural bases of phonological and semantic processes in the context of task-irrelevant information.
(Cognitive, affective & behavioral neuroscience, 2019-08)As we age we have increasing difficulty with phonological aspects of language production. Yet semantic processes are largely stable across the life span. This suggests a fundamental difference in the cognitive and potentially ... -
Age-related differences in the neural bases of phonological and semantic processes.
(Journal of cognitive neuroscience, 2014-12)Changes in language functions during normal aging are greater for phonological compared with semantic processes. To investigate the behavioral and neural basis for these age-related differences, we used fMRI to examine younger ... -
Cerebral white matter connectivity, cognition, and age-related macular degeneration.
(NeuroImage. Clinical, 2021-02-23)Age-related macular degeneration (AMD) is a common retina disease associated with cognitive impairment in older adults. The mechanism(s) that account for the link between AMD and cognitive decline remain unclear. Here we ... -
Cerebral White Matter Mediation of Age-Related Differences in Picture Naming Across Adulthood.
(Neurobiology of language (Cambridge, Mass.), 2022-03)As people age, one of the most common complaints is difficulty with word retrieval. A wealth of behavioral research confirms such age-related language production deficits, yet the structural neural differences that relate ... -
Frontoparietal activation during visual conjunction search: Effects of bottom-up guidance and adult age.
(Hum Brain Mapp, 2017-04)We conducted functional magnetic resonance imaging (fMRI) with a visual search paradigm to test the hypothesis that aging is associated with increased frontoparietal involvement in both target detection and bottom-up attentional ... -
Global versus tract-specific components of cerebral white matter integrity: relation to adult age and perceptual-motor speed.
(Brain structure & function, 2015-09)Although age-related differences in white matter have been well documented, the degree to which regional, tract-specific effects can be distinguished from global, brain-general effects is not yet clear. Similarly, the manner ... -
Language processing in age-related macular degeneration associated with unique functional connectivity signatures in the right hemisphere.
(Neurobiol Aging, 2017-11-14)Age-related macular degeneration (AMD) is a retinal disease associated with significant vision loss among older adults. Previous large-scale behavioral studies indicate that people with AMD are at increased risk of cognitive ... -
Maintenance and Representation of Mind Wandering during Resting-State fMRI.
(Scientific reports, 2017-01-12)Major advances in resting-state functional magnetic resonance imaging (fMRI) techniques in the last two decades have provided a tool to better understand the functional organization of the brain both in health and illness. ... -
Phonemic fluency and brain connectivity in age-related macular degeneration: a pilot study.
(Brain connectivity, 2015-03)Age-related macular degeneration (AMD), the leading cause of blindness in developed nations, has been associated with poor performance on tests of phonemic fluency. This pilot study sought to (1) characterize the relationship ... -
Sources of disconnection in neurocognitive aging: cerebral white-matter integrity, resting-state functional connectivity, and white-matter hyperintensity volume.
(Neurobiol Aging, 2017-06)Age-related decline in fluid cognition can be characterized as a disconnection among specific brain structures, leading to a decline in functional efficiency. The potential sources of disconnection, however, are unclear. ...
