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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 ...
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 ...
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 ...
In Cocaine Dependence, Neural Prediction Errors During Loss Avoidance Are Increased With Cocaine Deprivation and Predict Drug Use
(Elsevier, 2018-08-03)
Background: In substance-dependent individuals, drug deprivation and drug use trigger divergent behavioral responses to environmental cues. These divergent responses are consonant with data showing that short- and long-term ...
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 ...
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, ...
Neural cognitive control moderates the association between insular risk processing and risk-taking behaviors via perceived stress in adolescents
(Elsevier, 2018-02-14)
Adolescence is a critical period for the initiation of risk-taking behaviors. We examined the longitudinal interplay between neural correlates of risk processing and cognitive control in predicting risk-taking behaviors ...
Individual Differences in Anticipatory Somatosensory Cortex Activity for Shock is Positively Related with Trait Anxiety and Multisensory Integration
(MDPI, 2016-01-16)
Anxiety is associated with an exaggerated expectancy of harm, including overestimation of how likely a conditioned stimulus (CS+) predicts a harmful unconditioned stimulus (US). In the current study we tested whether ...
Neural differences in self-perception during illness and after weight-recovery in anorexia nervosa
(Oxford, 2016-06-27)
Anorexia nervosa (AN) is a severe mental illness characterized by problems with self-perception. Whole-brain neural activations in healthy women, women with AN and women in long-term weight recovery following AN were ...
Neural computations underlying social risk sensitivity
(Frontiers, 2012-08-02)
Under standard models of expected utility, preferences over stochastic events are assumed to be independent of the source of uncertainty. Thus, in decision-making, an agent should exhibit consistent preferences, regardless ...