Anxiety disorders are a significant problem in the community, and recent neuroimaging
research has focused on determining the brain circuits that underlie them. Research on the …

Over the past two decades a relatively large number of studies have investigated the
functional neuroanatomy of posttraumatic stress disorder (PTSD). However, findings are …

Objective: The study of human anxiety disorders has benefited greatly from functional
neuroimaging approaches. Individual studies, however, vary greatly in their findings. The …

Objective Posttraumatic stress disorder (PTSD) related to childhood abuse is associated
with features of affect regulation and interpersonal disturbances that substantially contribute …

The last decade of neuroimaging research has yielded important information concerning the
structure, neurochemistry, and function of the amygdala, medial prefrontal cortex, and …

Background In recent years, neuroimaging techniques such as functional magnetic
resonance imaging (fMRI) and positron emission tomography (PET) have played a …

Extensive research has identified stereotypic behavioral and biological abnormalities in post-
traumatic stress disorder (PTSD), such as heightened autonomic activity, an exaggerated …

Exposure to traumatic events that produce extreme fear and horror is all too common in both
military and civilian populations, but not all individuals develop posttraumatic stress disorder …

Neuroimaging provides an opportunity to understand core processes that mediate the
experience of emotions in healthy individuals as well as dysregulation of these processes in …

The fear circuitry orchestrates defense mechanisms in response to environmental threats.
This circuitry is evolutionarily crucial for survival, but its dysregulation is thought to play a …