Evidence map›Paper›PMID 29032769›Full record

Trial reportJournal of the International Neuropsychological Society : JINS2018

Amphetamine Modestly Improves Conners' Continuous Performance Test Performance in Healthy Adults.

David A MacQueen, Arpi Minassian, Brook L Henry, Mark A Geyer, Jared W Young, William Perry

Open access · greenAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Journal of the International Neuropsychological Society : JINS, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.2field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 33 citations in OpenAlex.

  1. Safety and cognitive pharmacodynamics following dose escalations with 3-methylmethcathinone (3-MMC): a first in human, designer drug study.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2025
    Trial
  2. EEG reveals that dextroamphetamine improves cognitive control through multiple processes in healthy participants.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2022
    Trial
  3. Trial
  4. Article
  5. Review
  6. Attenuating midline thalamus bursting to mitigate absence epilepsy.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Which came first: Cannabis use or deficits in impulse control?Progress in neuro-psychopharmacology & biological psychiatry · 2021
    Review
  12. Article
  13. Article
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  15. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

David A MacQueen1Department of Psychiatry,School of Medicine,University of California San Diego,9500 Gilman Drive MC 0804,La Jolla,California.
Arpi Minassian1Department of Psychiatry,School of Medicine,University of California San Diego,9500 Gilman Drive MC 0804,La Jolla,California.
Brook L Henry1Department of Psychiatry,School of Medicine,University of California San Diego,9500 Gilman Drive MC 0804,La Jolla,California.
Mark A Geyer1Department of Psychiatry,School of Medicine,University of California San Diego,9500 Gilman Drive MC 0804,La Jolla,California.
Jared W Young1Department of Psychiatry,School of Medicine,University of California San Diego,9500 Gilman Drive MC 0804,La Jolla,California.
William Perry1Department of Psychiatry,School of Medicine,University of California San Diego,9500 Gilman Drive MC 0804,La Jolla,California.
University of California, San Diego · USVA San Diego Healthcare System · US

Funding

Inhibitory Deficits in Mania and Hyperdopaminiergic MiceR01MH071916 · NIMH · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI GEYER, MARK A, PERRY, WILLIAM · 2004 to 2014
$4.2M
A model organism of brain circuitry and behavioral switching for bipolar disorderR01MH104344 · NIMH · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI YOUNG, JARED WILLIAM · 2014 to 2017
$1.7M
NIMH NIH HHS R01 MH071916NIMH NIH HHS R01 MH104344
6 · The paper itself

Abstract

objectivesAmphetamine improves vigilance as assessed by continuous performance tests (CPT) in children and adults with attention deficit hyperactivity disorder (ADHD). Less is known, however, regarding amphetamine effects on vigilance in healthy adults. Thus, it remains unclear whether amphetamine produces general enhancement of vigilance or if these effects are constrained to the remediation of deficits in patients with ADHD.

methodsWe tested 69 healthy adults (35 female) on a standardized CPT (Conner's CPT-2) after receiving 10- or 20-mg d-amphetamine or placebo. To evaluate potential effects on learning, impulsivity, and perseveration, participants were additionally tested on the Iowa Gambling Task (IGT) and Wisconsin Card Sorting Task (WCST).

resultsParticipants receiving placebo exhibited the classic vigilance decrement, demonstrated by a significant reduction in attention (D') across the task. This vigilance decrement was not observed, however, after either dose of amphetamine. Consistent with enhanced vigilance, the 20-mg dose also reduced reaction time variability across the task and the ADHD confidence index. The effects of amphetamine appeared to be selective to vigilance since no effects were observed on the IGT, WCST, or response inhibition/perseveration measures from the CPT.

conclusionsThe present data support the premise that amphetamine improves vigilance irrespective of disease state. Given that amphetamine is a norepinephrine/dopamine transporter inhibitor and releaser, these effects are informative regarding the neurobiological substrates of attentional control. (JINS, 2018, 24, 283-293).

Indexed as

AdolescentAdultAmphetamineArousalAttentionCentral Nervous System StimulantsDouble-Blind MethodFemaleHumansMaleNeuropsychological TestsWisconsin Card Sorting TestYoung AdultAmphetamineCentral Nervous System StimulantsADHDAttentionDopamineNorepinephrineStimulantVigilance

Identifiers

PMID29032769
PMCPMC5820221
OpenAlexW2761354207

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.