It is consistently found that aging adults are limited in their ability to ignore distracting information while performing a cognitive task. To delineate the origin of this cognitive decline electroencephalography (EEG) was used to examine the brain activity of young adults (aged 20-30) and older adults (aged 45-65) as they performed a Stroop task. This task was designed to isolate stimulus and...

In humans, β-adrenergic receptor activation causes a substantial portion of hypoxic vasodilation in skeletal muscle at rest and during forearm exercise. Recent evidence suggests that β-adrenergic receptors are either more sensitive or upregulated in young women vs. men. Therefore, we examined whether sex influences hypoxic vasodilation in 31 young subjects (15 women/16 men; 26 ± 1 yr). We also ...