Effects of Transcranial Direct Current Stimulation (tDCS) on Pain Distress Tolerance: A Preliminary Study.

Objective: Pain remains a critical medical challenge. Current treatments target nociception without addressing affective symptoms. Medically intractable pain is sometimes treated with cingulotomy or deep brain stimulation to increase tolerance of pain-related distress.

Brain activation during the Stroop task in adolescents with severe substance and conduct problems: A pilot study.

Background: Although many neuroimaging studies have examined changes in brain function in adults with substance use disorders, far fewer have examined adolescents. This study investigated patterns of brain activation in adolescents with severe substance and conduct problems (SCP) compared to controls.

Methods: Functional magnetic resonance imaging (fMRI) at 1.

Functional dissociation of attentional selection within PFC: response and non-response related aspects of attentional selection as ascertained by fMRI.

In this experiment using a color-word Stroop task, we explored whether different regions of prefrontal cortex bias selection of response-related processes as compared with non-response-related processes. To manipulate demands at the level of response selection, we varied the degree of overlap between stimulus-response mappings in a manual Stroop task. To vary demands at a non-response level, we compared activation for incongruent trials (e.

Common and distinct neural substrates of attentional control in an integrated Simon and spatial Stroop task as assessed by event-related fMRI.

The purpose of this experiment was to directly examine the neural mechanisms of attentional control involved in the Simon task as compared to a spatial Stroop task using event-related fMRI. The Simon effect typically refers to the interference people experience when there is a stimulus-response conflict. The Stroop effect refers to the interference people experience when two attributes of the same stimulus conflict with each other.