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Differentiating sensitivity of post-stimulus undershoot under diffusion weighting: implication of vascular and neuronal hierarchy.
(PLoS One, 2008-08-13)
The widely used blood oxygenation level dependent (BOLD) signal during brain activation,
as measured in typical fMRI methods, is composed of several distinct phases, the last
of which, and perhaps the least understood, is ...
A framework for integrating the songbird brain.
(J Comp Physiol A Neuroethol Sens Neural Behav Physiol, 2002-12)
Biological systems by default involve complex components with complex relationships.
To decipher how biological systems work, we assume that one needs to integrate information
over multiple levels of complexity. The songbird ...
For whom the bird sings: context-dependent gene expression.
(Neuron, 1998-10)
Male zebra finches display two song behaviors: directed and undirected singing. The
two differ little in the vocalizations produced but greatly in how song is delivered.
"Directed" song is usually accompanied by a courtship ...
Assessing visual requirements for social context-dependent activation of the songbird song system.
(Proc Biol Sci, 2009-01-22)
Social context has been shown to have a profound influence on brain activation in
a wide range of vertebrate species. Best studied in songbirds, when males sing undirected
song, the level of neural activity and expression ...
Fear learning circuitry is biased toward generalization of fear associations in posttraumatic stress disorder.
(Transl Psychiatry, 2015-12-15)
Fear conditioning is an established model for investigating posttraumatic stress disorder
(PTSD). However, symptom triggers may vaguely resemble the initial traumatic event,
differing on a variety of sensory and affective ...
The short and long of it: neural correlates of temporal-order memory for autobiographical events.
(J Cogn Neurosci, 2008-07)
Previous functional neuroimaging studies of temporal-order memory have investigated
memory for laboratory stimuli that are causally unrelated and poor in sensory detail.
In contrast, the present functional magnetic resonance ...
Rapid modulation of sensory processing induced by stimulus conflict.
(J Cogn Neurosci, 2011-09)
Humans are constantly confronted with environmental stimuli that conflict with task
goals and can interfere with successful behavior. Prevailing theories propose the
existence of cognitive control mechanisms that can suppress ...
The role of stimulus salience and attentional capture across the neural hierarchy in a stop-signal task.
(PLoS One, 2011)
Inhibitory motor control is a core function of cognitive control. Evidence from diverse
experimental approaches has linked this function to a mostly right-lateralized network
of cortical and subcortical areas, wherein a ...
Convergent transcriptional specializations in the brains of humans and song-learning birds.
(Science, 2014-12-12)
Song-learning birds and humans share independently evolved similarities in brain pathways
for vocal learning that are essential for song and speech and are not found in most
other species. Comparisons of brain transcriptomes ...
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 ...