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Human substantia nigra and ventral tegmental area involvement in computing social error signals during the ultimatum game
(Oxford University Press, 2017-08-17)
As models of shared expectations, social norms play an essential role in our societies. Since our social environment is changing constantly, our internal models of it also need to change. In humans, there is mounting ...
Processes linking socioeconomic disadvantage and neural correlates of cognitive control in adolescence
(Elsevier, 2021-04-01)
Socioeconomic status (SES) is broadly associated with self-regulatory abilities across childhood and adolescence. However, there is limited understanding of the mechanisms underlying this association, especially during ...
Belief about nicotine modulates subjective craving and insula activity in deprived smokers
(Frontiers, 2016-07-13)
Little is known about the specific neural mechanisms through which cognitive factors influence craving and associated brain responses, despite the initial success of cognitive therapies in treating drug addiction. In this ...
A computational approach to “free will” constrained by the games we play
(Frontiers, 2012-09-27)
Human choice is not free—we are bounded by a multitude of biological constraints. Yet, within the various landscapes we face, we do express choice, preference, and varying degrees of so-called willful behavior. Moreover, ...
Belief about nicotine selectively modulates value and reward prediction error signals in smokers
(NAS, 2015-02-24)
Little is known about how prior beliefs impact biophysically described processes in the presence of neuroactive drugs, which presents a profound challenge to the understanding of the mechanisms and treatments of addiction. ...
Spatiotemporal dissociation of brain activity underlying threat and reward in social anxiety disorder
(Oxford University Press, 2016-10-19)
Social anxiety disorder (SAD) involves abnormalities in social motivation, which may be independent of well-documented differences in fear and arousal systems. Yet, the neurobiology underlying motivational difficulties in ...
Longitudinal associations among family environment, neural cognitive control, and social competence among adolescents
(Elsevier, 2017-05-16)
During adolescence, prefrontal cortex regions, important in cognitive control, undergo maturation to adapt to changing environmental demands. Ways through which social-ecological factors contribute to adolescent neural ...
BOLD responses to negative reward prediction errors in human habenula
(Frontiers, 2010-05-11)
Although positive reward prediction error, a key element in learning that is signaled by dopamine cells, has been extensively studied, little is known about negative reward prediction errors in humans. Detailed animal ...
Longitudinal link between trait motivation and risk-taking behaviors via neural risk processing
(2019-12)
Prior research has emphasized the importance of the motivational system in risky decision-making, yet the mechanisms through which individual differences in motivation may influence adolescents' risk-taking behaviors remain ...
Functional brain network changes associated with maintenance of cognitive function in multiple sclerosis
(Frontiers, 2010-11-22)
In multiple sclerosis (MS) functional changes in connectivity due to cortical reorganization could lead to cognitive impairment (CI), or reflect a re-adjustment to reduce the clinical effects of widespread tissue damage. ...