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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 ...
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 ...
Simulating future value in intertemporal choice
(Nature, 2017-02-22)
The laboratory study of how humans and other animals trade-off value and time has a long and storied history, and is the subject of a vast literature. However, despite a long history of study, there is no agreed upon ...
Predicting the knowledge–recklessness distinction in the human brain
(NAS, 2017-02-09)
Criminal convictions require proof that a prohibited act was performed in a statutorily specified mental state. Different legal consequences, including greater punishments, are mandated for those who act in a state of ...
Irrational exuberance and neural crash warning signals during endogenous experimental market bubbles
(NAS, 2014-07-22)
Groups of humans routinely misassign value to complex future events, especially in settings involving the exchange of resources. If properly structured, experimental markets can act as excellent probes of human group-level ...
Distinct contributions of the amygdala and parahippocampal gyrus to suspicion in a repeated bargaining game
(NAS, 2012-05-29)
Humans assess the credibility of information gained from others on a daily basis; this ongoing assessment is especially crucial for avoiding exploitation by others. We used a repeated, two-person bargaining game and a ...
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. ...
Subsecond dopamine fluctuations in human striatum encode superposed error signals about actual and counterfactual reward
(NAS, 2016-01-05)
In the mammalian brain, dopamine is a critical neuromodulator whose actions underlie learning, decision-making, and behavioral control. Degeneration of dopamine neurons causes Parkinson’s disease, whereas dysregulation of ...
Sub-Second Dopamine Detection in Human Striatum
(PLOS, 2011-08-04)
Fast-scan cyclic voltammetry at carbon fiber microelectrodes allows rapid (sub-second) measurements of dopamine release in behaving animals. Herein, we report the modification of existing technology and demonstrate the ...
Computational Substrates of Norms and Their Violations during Social Exchange
(Society for Neuroscience, 2013-01-16)
Social norms in humans constrain individual behaviors to establish shared expectations within a social group. Previous work has probed social norm violations and the feelings that such violations engender; however, a ...