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A Neural Basis for Social Cooperation
Cooperation based on reciprocal altruism has evolved in only a small number of species, yet it constitutes the core behavioral principle of human social life. The iterated Prisoner's Dilemma Game hasExpand
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Elevated concentrations of CSF corticotropin-releasing factor-like immunoreactivity in depressed patients.
The possibility that hypersecretion of corticotropin-releasing factor (CRF) contributes to the hyperactivity of the hypothalamo-pituitary-adrenal axis observed in patients with major depression wasExpand
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Amygdala activity related to enhanced memory for pleasant and aversive stimuli
Pleasant or aversive events are better remembered than neutral events. Emotional enhancement of episodic memory has been linked to the amygdala in animal and neuropsychological studies. UsingExpand
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Neural activity related to drug craving in cocaine addiction.
BACKGROUND Crack cocaine dependence and addiction is typically associated with frequent and intense drug wanting or craving triggered by internal or environmental cues associated with past drug use.Expand
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Pharmacokinetics of methylphenidate in man, rat and monkey.
The pharmacokinetics and bioavailability of methylphenidate (MPH) and a metabolite, ritalinic acid (RA), were studied in normal adults, children with hyperactivity, monkeys and rats. Adult malesExpand
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Dissociable Neural Pathways Are Involved in the Recognition of Emotion in Static and Dynamic Facial Expressions
We used positron emission tomography to compare patterns of brain activity in healthy men and women during the explicit judgment of emotion intensity in static and dynamic facial expressions of anger and happiness. Expand
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The variable number of tandem repeats element in DAT1 regulates in vitro dopamine transporter density
BackgroundA 40-bp variable number of tandem repeats (VNTR) polymorphism exists in the 15th exon of DAT1, the gene encoding the human dopamine transporter (DAT). Though the VNTR resides in a regionExpand
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Neural Bases of Motivated Reasoning: An fMRI Study of Emotional Constraints on Partisan Political Judgment in the 2004 U.S. Presidential Election
Motivated reasoning is a form of implicit emotion regulation in which the brain converges on judgments that minimize negative and maximize positive affect states associated with threat to or attainment of motives. Expand
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Ecstasy and Agony: Activation of the Human Amygdala in Positive and Negative Emotion
Considerable evidence indicates that the amygdala plays a critical role in negative, aversive human emotions. Although researchers have speculated that the amygdala plays a role in positive emotion,Expand
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Comparison of Dopamine Uptake in the Basolateral Amygdaloid Nucleus, Caudate‐Putamen, and Nucleus Accumbens of the Rat
Abstract: Regional differences in the kinetics and pharmacological inhibition of dopamine uptake were investigated with fast‐scan cyclic voltammetry in both the intact rat brain and a brain sliceExpand
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