Many cognitive abilities decline with age even in the absence of detectable pathology.
Recent evidence indicates that age-related neural dedifferentiation, operationalized in terms …

Neuronal networks with strong recurrent connectivity provide the brain with a powerful
means to perform complex computational tasks. However, high-gain excitatory networks are …

Aging is associated with myriad changes in behavioral performance and brain structure and
function. Given this complex interplay of brain and behavior, two streams of findings are …

Since GABAA-mediated intracortical inhibition has been shown to underlie plastic changes
throughout the lifespan from development to aging, here, the aging motor system was used …

Ventral–visual activity in older adults has been characterized by dedifferentiation, or
reduced distinctiveness, of responses to different categories of visual stimuli such as faces …

While the percentage of older people in our society is steadily increasing, knowledge about
perceptual changes during healthy aging is still limited. We investigated age effects on …

Electrophysiological studies indicate that a decline of GABAergic inhibition in the visual
cortex may underlie age-related degradation of visual function [AG Leventhal, Y. Wang, M …

Several studies have attributed certain visual perceptual alterations in older adults to a likely
decrease in GABA (Gamma Aminobutyric Acid) concentration in visual cortex, an …

The current experiments measured orientation discrimination thresholds in younger (mean
age≈ 23 years) and older (mean age≈ 66 years) subjects. In Experiment 1, the contrast …

Major accounts of aging implicate changes in processing external stimulus information. Little
is known about differential effects of auditory and visual sensory aging, and the mechanisms …