Research has recently identified a promising neurophysiological marker of approach motivation involving posterior versus frontal (Pz - Fz) electroencephalographic (EEG) theta activity PFTA; Wacker, Chavanon, & Stemmler (Journal of Personality and Social Psychology 91:171-187, 2006). Preliminary evidence indicated that PFTA is modulated by dopaminergic activity, thought to underlie appetitive te...

This paper aims to investigate the effectiveness of a learning model in developing students' communication skills and reducing their apprehension level. consists three main elements, each which has sub-elements. It takes students through different phases starting with raising awareness reaching autonomy. A training program an assessment battery were developed administered. Both qualitative quan...

Communication-avoiding Krylov subspace methods (CA-KSMs) fuse s loop iterations in order to asymptotically reduce sequential and parallel communication costs by a factor of O(s). However, the actual savings depend on the nonzero structure of the system matrix A, and these savings typically diminish as A fills, as is common when preconditioning. Recent efforts target incorporating preconditionin...

The present study tested the hypothesis that anxious apprehension involves more left- than right-hemisphere activity and that anxious arousal is associated with the opposite pattern. Behavioral and fMRI responses to threat stimuli in an emotional Stroop task were examined in nonpatient groups reporting anxious apprehension, anxious arousal, or neither. Reaction times were longer for negative th...