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In this research, we investigated the degree to which brain systems involved in ignoring emotionally salient information differ from those involved in ignoring nonemotional information. The design allowed examination of regional brain activity, using fMRI during color-word and emotional Stroop tasks. Twelve participants indicated the color of words while(More)
Previous studies have reported hemispheric asymmetries in brain activity in anxiety, but the direction of asymmetry has been inconsistent. A distinction between anxious apprehension (e.g., worry) and anxious arousal (e.g., panic), as types of anxiety, may account for some of the discrepancies. To test this proposition, the authors selected participants with(More)
Evidence suggests that a distinction between anxious apprehension (worry) and anxious arousal (somatic anxiety) might account for some discrepancies in the literature examining brain activity in anxiety. In the current study, we compared the regional brain activity of groups of anxious apprehension and anxious arousal participants, selected on the basis of(More)
More than 1,000 university undergraduates were simultaneously classified as either high or low depressed and high or low anxious and given a face-processing task that typically elicits a left hemispatial bias. Depression and anxiety were associated with opposing biases in perceptual asymmetry scores. In particular, high-depressed students had smaller left(More)
We have devised a new free-vision task to index functional cerebral asymmetry for processing facial characteristics. Confirming its sensitivity to properties of lateralized hemispheric functions, left- and right-handers were clearly differentiated on this task with respect to several aspects of performance that conform with known differences between(More)
Functional differentiation of dorsal (dACC) and rostral (rACC) anterior cingulate cortex for cognitive and emotional function has received considerable indirect support. Using fMRI, parallel tasks, and within-subject analysis, the present study directly tested the proposed specialization of ACC subdivisions. A Task x Region interaction confirmed more dACC(More)
In this paper we provide a focused review of the literature examining neural mechanisms involved in cognitive control over memory processes that can influence, and in turn are influenced by, emotional processes. The review is divided into two parts, the first focusing on working memory and the second on long-term memory. With regard to working memory, we(More)
A network of brain regions has been implicated in top-down attentional control, including left dorsolateral prefrontal cortex (LDLPFC) and dorsal anterior cingulate cortex (dACC). The present experiment evaluated predictions of the cascade-of-control model (Banich, 2009), which predicts that during attentionally-demanding tasks, LDLPFC imposes a top-down(More)
The high comorbidity of depression and anxiety is well established empirically but not well understood conceptually, in terms of either psychological or biological mechanisms. A neuropsychological model of regional brain activity in emotion provides contrasting hypotheses for depression and anxiety, with depression associated with a relative decrease and(More)
Symptom covariation and lack of symptom specificity have proven to be complicating factors in research on the emotional, cognitive, and physiologic characteristics of anxiety and depression. Numerous attempts have been made to investigate the unique and overlapping features of anxiety and depression. Of interest in the present study were potential(More)