Tryptophan depletion impairs stimulus-reward learning while methylphenidate disrupts attentional control in healthy young adults: implications for the monoaminergic basis of impulsive behaviour

Information theory and statistics

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Modulation of memory fields by dopamine Dl receptors in prefrontal cortex

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1991 • 1,365 citations

Failure to Respond Autonomically to Anticipated Future Outcomes Following Damage to Prefrontal Cortex

1996 • 1,173 citations

Dissociable Deficits in the Decision-Making Cognition of Chronic Amphetamine Abusers, Opiate Abusers, Patients with Focal Damage to Prefrontal Cortex, and Tryptophan-Depleted Normal Volunteers Evidence for Monoaminergic Mechanisms

1999 • 1,094 citations

Dissociation Of Working Memory from Decision Making within the Human Prefrontal Cortex

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Emotion-related learning in patients with social and emotional changes associated with frontal lobe damage.

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Mechanisms of Animal Discrimination Learning

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Limbic lesions and the problem of stimulus—Reinforcement associations

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The orbitofrontal cortex: Neuronal activity in the behaving monkey

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Evidence for a Two-Stage Model of Spatial Working Memory Processing within the Lateral Frontal Cortex: A Positron Emission Tomography Study

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Perseverative interference in monkeys following selective lesions of the inferior prefrontal convexity

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Tryptophan depletion causes a rapid lowering of mood in normal males

1985 • 726 citations

Striatal dopamine nerve terminal markers in human, chronic methamphetamine users

1996 • 715 citations

The role of D1-dopamine receptor in working memory: local injections of dopamine antagonists into the prefrontal cortex of rhesus monkeys performing an oculomotor delayed-response task

1994 • 663 citations

Extra-dimensional versus intra-dimensional set shifting performance following frontal lobe excisions, temporal lobe excisions or amygdalo-hippocampectomy in man

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Physiological activation of a cortical network during performance of the Wisconsin Card Sorting Test: A positron emission tomography study

1995 • 539 citations

Impaired extra-dimensional shift performance in medicated and unmedicated Parkinson's disease: Evidence for a specific attentional dysfunction

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Catecholamine regulation of the prefrontal cortex

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Contrasting Cortical and Subcortical Activations Produced by Attentional-Set Shifting and Reversal Learning in Humans

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6-Hydroxydopamine lesions of the prefrontal cortex in monkeys enhance performance on an analog of the Wisconsin Card Sort Test: possible interactions with subcortical dopamine

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Effects of bromocriptine on human subjects depend on working memory capacity

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Comparative studies of various amphetamine analogues demonstrating different interactions with the metabolism of the catecholamines in the brain

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Effects of methylphenidate on spatial working memory and planning in healthy young adults

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D1- Versus D2-Receptor Modulation of Visuospatial Working Memory in Humans

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Tryptophan depletion in normal volunteers produces selective impairments in learning and memory

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The effects of intradimensional and extradimensional shifts on visual discrimination learning in humans and non-human primates.

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Tryptophan depletion in normal volunteers produces selective impairment in memory consolidation

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Opposing roles for dopamine and serotonin in the modulation of human spatial working memory functions

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Dopamine D2 receptor mechanisms contribute to age-related cognitive decline: the effects of quinpirole on memory and motor performance in monkeys

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A Critique of the Methods Available for the Measurement of Spontaneous Motor Activity

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Catecholamines and the covert orientation of attention in humans

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Systemic sulpiride in young adult volunteers simulates the profile of cognitive deficits in Parkinson's disease

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Effects of dopamine antagonists on neuronal activity related to a delayed response task in monkey prefrontal cortex

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Alpha-2 adrenergic agonists decrease distractibility in aged monkeys performing the delayed response task

1992 • 164 citations

Dopamine enhances the neuronal activity of spatial short-term memory task in the primate prefrontal cortex

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A methodological analysis of shift paradigms in human discrimination learning.

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Clonidine and diazepam have differential effects on tests of attention and learning

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Differential effects of clonidine, haloperidol, diazepam and tryptophan depletion on focused attention and attentional search

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Idazoxan potentiates rather than antagonizes some of the cognitive effects of clonidine

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Effects of Methylphenidate on Hyperactive Children's Ability to Sustain Attention

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Role of 5-hydroxytryptamine in amphetamine effects on punished and unpunished behaviour

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Systemic idazoxan impairs performance in a non-reversal shift test: implications for the role of the central noradrenergic systems in selective attention

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Test-Retest Evaluations of Attention and Rigidity

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