This paper examines the influence of Norman Geschwind's model of connectionism, in which complex functions are built up by connecting primary areas in the brain, and notes his studies of the effects of disconnection on dyslexic individuals. Connectionist-based behavioral studies are reviewed, focusing on intracortical association connections and…

Previous studies of the Stroop task propose two key mediators: the prefrontal and cingulate cortices but hints exist of functional specialization within these regions. This study aimed to examine the effect of task modality upon the prefrontal and cingulate response by examining the response to colour, number, and shape Stroop tasks whilst BOLD…

A reanalysis of recent clinical research suggests that three different neural processes or brain mechanisms may underlie the regulation of emotion: (1) contralateral disinhibition of cortical centers; (2) ipsilateral disinhibition of subcortical centers; and (3) excitation of specific subcortical or neocortical centers. (MDM)

This essay discusses the evaluation of the relationship between the nervous system and emotion regulation, introducing vagal tone as a measurable organismic variable that contributes to individual and developmental differences in the expression and regulation of emotion. (MDM)

The return to drug seeking, even after prolonged periods of abstinence, is a defining feature of cocaine addiction. The neural circuitry underlying relapse has been identified in neuropharmacological studies of experimental animals, typically rats, and supported in brain imaging studies of human addicts. Although the nucleus accumbens (NAcc),…