Cited by 164Attention Deficit Hyperactivity DisorderNeurotransmitter Receptor Influence on BehaviorNeuroethics, Human Enhancement, Biomedical Innovations

The Cognition-Enhancing Effects of Psychostimulants Involve Direct Action in the Prefrontal Cortex

Open access
Spencer, Robert C., Devilbiss, David M., Berridge, Craig W.·2015·Biological Psychiatry

Abstract

Psychostimulants are highly effective in the treatment of attention-deficit/hyperactivity disorder. The clinical efficacy of these drugs is strongly linked to their ability to improve cognition dependent on the prefrontal cortex (PFC) and extended frontostriatal circuit. The procognitive actions of psychostimulants are only associated with low doses. Surprisingly, despite nearly 80 years of clinical use, the neurobiology of the procognitive actions of psychostimulants has only recently been systematically investigated. Findings from this research unambiguously demonstrate that the cognition-enhancing effects of psychostimulants involve the preferential elevation of catecholamines in the PFC and the subsequent activation of norepinephrine α2 and dopamine D1 receptors. In contrast, while the striatum is a critical participant in PFC-dependent cognition, where examined, psychostimulant action within the striatum is not sufficient to enhance cognition. At doses that moderately exceed the clinical range, psychostimulants appear to improve PFC-dependent attentional processes at the expense of other PFC-dependent processes (e.g., working memory, response inhibition). This differential modulation of PFC-dependent processes across dose appears to be associated with the differential involvement of noradrenergic α2 versus α1 receptors. Collectively, this evidence indicates that at low, clinically relevant doses, psychostimulants are devoid of the behavioral and neurochemical actions that define this class of drugs and instead act largely as cognitive enhancers (improving PFC-dependent function). This information has potentially important clinical implications as well as relevance for public health policy regarding the widespread clinical use of psychostimulants and for the development of novel pharmacologic treatments for attention-deficit/hyperactivity disorder and other conditions associated with PFC dysregulation.

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Crossref · 10.1016/j.biopsych.2014.09.013

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107 of 107 references verified0 citation errors · 0 not checkable

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  • DA acts as an inverted U-shaped pattern on cognitive performance; too low or too high DA levels elicited by clinically inappropriate doses of d-amphetamine impair cognition.

    “DA acts as an inverted U-shaped pattern to cognitive performance. As is reported, too lower or higher DA level elicited by clinically-inappropriate doses of d-amphetamine impairs cognition (12).”

    From Effects of Lisdexamfetamine, a Prodrug of D-Amphetamine, on Locomotion, Spatial Cognitive Processing and Neurochemical Profiles in Rats: A Comparison With Immediate-Release Amphetamine (2022) · cites this paper as [12]

    The ‘Receptor Mechanisms in the PFC’ section states that dopamine has an inverted-U-shaped effect on prefrontal-cortex-dependent working memory. ‘Summary and Implications’ contrasts cognitive improvement at clinically relevant psychostimulant doses with impairment at higher doses. The copy does not establish that clinically inappropriate doses of d-amphetamine produce both the low and high dopamine levels described in the claim, and it does not extend the inverted-U relationship to all cognitive performance. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • The cognitive-enhancing effects of amphetamine occur through the dopaminergic transmission activation which, in turn, is mediated by both D1 dopamine receptors and α2-adrenoceptors in postsynaptic neurons in PFC.

    “The cognitive-enhancing effects of amphetamine occur through the dopaminergic transmission activation which, in turn, is mediated by both D1 dopamine receptors and α2-adrenoceptors in postsynaptic neurons in PFC [188].”

    From Molecular Characterisation of the Mechanism of Action of Stimulant Drugs Lisdexamfetamine and Methylphenidate on ADHD Neurobiology: A Review (2022) · cites this paper as [188]

    The “Receptor Mechanisms in the PFC: NE α2 and DA D1 receptors” section (page unavailable) links the cognitive benefits of low-dose psychostimulants to PFC α2 and/or D1 receptor activation. It does not establish the claimed mechanism specifically for amphetamine, and it distinguishes noradrenergic α2 signaling from dopaminergic D1 signaling rather than describing both receptors as mediators of dopamine transmission. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

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1 of the 108 references couldn’t be matched to a known paper.

Research works printed but not linked: 3

  1. [29]Kuczenski R Segal DS Cho AK Segal DS Neurochemistry of amphetamine Amphetamine and its analogues: psychopharmacology, toxicology and abuse 1994 San Diego Academic Press 81 113
  2. [99]Spencer RCSJ Waterhouse BD Berridge CW Neurocircuitry and receptor mechanisms underlying the differential sensitivity of prefrontal cognitive processes to psychostimulants Soc Neurosci Abst 2014 in press
  3. [106]Doerge DR Fogle CM Paule MG McCullagh M Bajic S Analysis of methylphenidate and its metabolite ritalinic acid in monkey plasma by liquid chromatography/electrospray ionization mass spectrometry Rapid Comm Mass Spectrometry 2000 14 619 623 10786896

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Authors
Spencer, R. C., Devilbiss, D. M., & Berridge, C. W.
Affiliations
University of Wisconsin–Madison (US)
Corresponding author
Berridge, Craig W.
Venue
Biological Psychiatry
Publisher
Elsevier BV
Published
2015-06
Volume
77
Issue
11
Pages
940-950
ISSN
0006-3223 (ISSN-L)
OpenAlex
W2080244900
Cited by
164
References
108
Citations by year
2026: 7 · 2025: 13 · 2024: 8 · 2023: 15 · 2022: 18 · 2021: 22 · 2020: 9 · 2019: 20 · 2018: 13 · 2017: 17 · 2016: 14 · 2015: 8
FWCI
1.80
Type
journal article
Language
en
Open access
Locations
  • Biological Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Rowan Digitals Works (Rowan University) (submittedVersion, cc-by-nc-nd)
Funders
  • Public Health Service (MH098631, MH081843, DA000389)
  • National Science Foundation (NSF 0918555)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Attention Deficit Hyperactivity Disorder
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neuroethics, Human Enhancement, Biomedical Innovations
Keywords
psychostimulants, cognitive enhancement, prefrontal cortex, attention deficit hyperactivity disorder, catecholamines, dopamine D1 receptor, striatum, frontostriatal circuits, dose-dependent effects, working memory, response inhibition, attention
MeSH terms
Central Nervous System Stimulants, Animals, Cognition, Humans, Prefrontal Cortex

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