Search
Now showing items 1-9 of 9
Differential developmental trajectories of magnetic susceptibility in human brain gray and white matter over the lifespan.
(Hum Brain Mapp, 2014-06)
As indicated by several recent studies, magnetic susceptibility of the brain is influenced
mainly by myelin in the white matter and by iron deposits in the deep nuclei. Myelination
and iron deposition in the brain evolve ...
Adult age differences in functional connectivity during executive control.
(Neuroimage, 2010-08-15)
Task switching requires executive control processes that undergo age-related decline.
Previous neuroimaging studies have identified age-related differences in brain activation
associated with global switching effects (dual-task ...
Neural responses to emotional involuntary memories in posttraumatic stress disorder: Differences in timing and activity.
(NeuroImage. Clinical, 2018-01)
Background:Involuntary memories are a hallmark symptom of posttraumatic stress disorder
(PTSD), but studies of the neural basis of involuntary memory retrieval in posttraumatic
stress disorder (PTSD) are sparse. The study ...
The dynamics of proactive and reactive cognitive control processes in the human brain.
(J Cogn Neurosci, 2014-05)
In this study, we leveraged the high temporal resolution of EEG to examine the neural
mechanisms underlying the flexible regulation of cognitive control that unfolds over
different timescales. We measured behavioral and ...
Rapid brain responses independently predict gain maximization and loss minimization during economic decision making.
(J Neurosci, 2013-04-17)
Success in many decision-making scenarios depends on the ability to maximize gains
and minimize losses. Even if an agent knows which cues lead to gains and which lead
to losses, that agent could still make choices yielding ...
Cortical Brain Activity Reflecting Attentional Biasing Toward Reward-Predicting Cues Covaries with Economic Decision-Making Performance.
(Cereb Cortex, 2016-01)
Adaptive choice behavior depends critically on identifying and learning from outcome-predicting
cues. We hypothesized that attention may be preferentially directed toward certain
outcome-predicting cues. We studied this ...
Improvement in visual search with practice: mapping learning-related changes in neurocognitive stages of processing.
(J Neurosci, 2015-04-01)
Practice can improve performance on visual search tasks; the neural mechanisms underlying
such improvements, however, are not clear. Response time typically shortens with practice,
but which components of the stimulus-response ...
The neural basis of involuntary episodic memories.
(J Cogn Neurosci, 2014-10)
Voluntary episodic memories require an intentional memory search, whereas involuntary
episodic memories come to mind spontaneously without conscious effort. Cognitive neuroscience
has largely focused on voluntary memory, ...
Effects of chronic mild traumatic brain injury on white matter integrity in Iraq and Afghanistan war veterans.
(Hum Brain Mapp, 2013-11)
Mild traumatic brain injury (TBI) is a common source of morbidity from the wars in
Iraq and Afghanistan. With no overt lesions on structural MRI, diagnosis of chronic
mild TBI in military veterans relies on obtaining an ...