Now showing items 1-6 of 6
Amygdala-prefrontal cortex functional connectivity during threat-induced anxiety and goal distraction.
(Biol Psychiatry, 2015-02-15)
BACKGROUND: Anxiety produced by environmental threats can impair goal-directed processing and is associated with a range of psychiatric disorders, particularly when aversive events occur unpredictably. The prefrontal cortex ...
Scan-rescan reliability of subcortical brain volumes derived from automated segmentation.
(Hum Brain Mapp, 2010-11)
Large-scale longitudinal studies of regional brain volume require reliable quantification using automated segmentation and labeling. However, repeated MR scanning of the same subject, even if using the same scanner ...
Amygdala volume changes in posttraumatic stress disorder in a large case-controlled veterans group.
(Arch Gen Psychiatry, 2012-11)
CONTEXT: Smaller hippocampal volumes are well established in posttraumatic stress disorder (PTSD), but the relatively few studies of amygdala volume in PTSD have produced equivocal results. OBJECTIVE: To assess a large cohort ...
Reduced hippocampal and amygdala activity predicts memory distortions for trauma reminders in combat-related PTSD.
(J Psychiatr Res, 2011-05)
Neurobiological models of posttraumatic stress disorder (PTSD) suggest that altered activity in the medial temporal lobes (MTL) during encoding of traumatic memories contribute to the development and maintenance of the disorder. ...
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 ...
Altered resting-state functional connectivity of basolateral and centromedial amygdala complexes in posttraumatic stress disorder.
The amygdala is a major structure that orchestrates defensive reactions to environmental threats and is implicated in hypervigilance and symptoms of heightened arousal in posttraumatic stress disorder (PTSD). The basolateral ...