Healthy aging simultaneously affects brain structure, brain function, and cognition. These
effects are often investigated in isolation ignoring any relationships between them. It is …

Advancing age affects both cognitive performance and functional brain activity and
interpretation of these effects has led to a variety of conceptual research models without …

A body of research has demonstrated age-related slowing on tasks that emphasize cognitive
control, such as task switching. However, little is known about the neural mechanisms that …

Increased frontal cortex activation during cognitive task performance is common in aging but
remains poorly understood. Here we explored patterns of age-related frontal brain …

Older adults often encounter difficulties in switching between tasks, perhaps because of age-
related decreases in executive function. Executive function may largely depend on …

Magnetic resonance imaging (MRI) studies of brain and neurocognitive aging rarely include
oldest-old adults (ages 80+). But predictions of neurocognitive aging theories derived from …

Cognitive aging studies have suggested that older adults show declines in both sustained
and transient cognitive control processes. However, previous neuroimaging studies have …

Task switching requires executive control processes that undergo age-related decline.
Previous neuroimaging studies have identified age-related differences in brain activation …

A reduction in cognitive resources has been originally proposed to account for age-related
decrements in several cognitive domains. According to this view, aging limits the pool of …

There are substantial declines in behavioral measures of cognitive function with age,
including decreased function of executive processes and long-term memory. There is also …