Research
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Effects of Expressive Writing on Neural Processing During Learning
Abstract
Expressive writing about past negative events has been shown to lead to a slew of positive outcomes. However, little is known about why writing about something negative would have positive effects. While some have posited that telling a...
Publication · June 26, 2026
The neurobehavioral mechanisms of motivational control in attention-deficit/hyperactivity disorder.
Abstract
Attention-deficit/hyperactivity disorder (ADHD) poses debilitating impairments in the neurobehavioral systems governing reward-related processes-key to the control of motivated behaviors. Individuals with ADHD may rely on a motivational...
Publication · June 26, 2026
Determining the effects of training duration on the behavioral expression of habitual control in humans: a multilaboratory investigation
Abstract
It has been suggested that there are two distinct and parallel mechanisms for controlling instrumental behavior in mammals: goal-directed actions and habits. To gain an understanding of how these two systems interact to control behavior...
Publication · June 26, 2026
Altered functional connectivity during performance feedback processing in multiple sclerosis
Abstract
Highlights • Cognitive fatigue does not impact learning from feedback in multiple sclerosis (MS).• Cortico-striatal regions are activated during feedback processing in MS.• Enhanced connectivity between striatal and task-relevant region...
Publication · June 26, 2026
Common and distinct fronto-striatal volumetric changes in heroin and cocaine use disorders.
Abstract
Different drugs of abuse impact the morphology of fronto-striatal dopaminergic targets in both common and unique ways. While dorsal striatal volume tracks with addiction severity across drug classes, opiates impact ventromedial prefront...
Publication · June 26, 2026
The Neural Signature of Impaired Inhibitory Control in Individuals with Heroin Use Disorder
Abstract
Heroin addiction imposes a devastating toll on society, with little known about its neurobiology. Excessive salience attribution to drug over nondrug cues/reinforcers, with concomitant inhibitory control decreases, are common mechanisms...
Publication · June 26, 2026
Altered prefrontal signaling during inhibitory control in a salient drug context in cocaine use disorder.
Publication · June 26, 2026
Association of Cortico-Striatal Engagement During Cue Reactivity, Reappraisal, and Savoring of Drug and Non-Drug Stimuli With Craving in Heroin Addiction
Abstract
Objective: The authors investigated cortico-striatal reactivity to drug cues (as compared with neutral and food cues), drug cue reappraisal, food cue savoring, and their correlations with heroin craving in individuals with heroin use di...
Publication · June 26, 2026
Reduced neural encoding of utility prediction errors in cocaine addiction
Abstract
Summary Influential accounts of addiction posit alterations in adaptive behavior driven by deficient dopaminergic prediction errors (PE) signaling the discrepancy between actual and expected reward. Dopamine neurons encode these error s...
Publication · June 26, 2026
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