Evidence map›Paper›PMID 29299388›Full record

ArticleBrain and behavior2017

Individual differences in EEG correlates of recognition memory due to DAT polymorphisms.

Paolo Medrano, Erika Nyhus, Andrew Smolen, Tim Curran, Robert S Ross

Abstract read
In one paragraph

Article in Brain and behavior, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
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

6 citing papers in PubMed.

  1. Article
  2. [A TrAdaBoost-based method for detecting multiple subjects' P300 potentials].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2019
    Article
  3. Review
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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

5 authors.

Paolo MedranoPsychology Department University of New Hampshire Durham NH USA.ORCID 0000-0002-0494-088X
Erika NyhusDepartment of Psychology and Program in Neuroscience Bowdoin College Brunswick ME USA.
Andrew SmolenInstitute for Behavioral Genetics University of Colorado Boulder Boulder CO USA.
Tim CurranDepartment of Psychology and Neuroscience University of Colorado Boulder Boulder CO USA.
Robert S RossPsychology Department University of New Hampshire Durham NH USA.

Funding

Proj 5: Early Development (224-250)P50MH079485 · NIMH · UNIVERSITY OF COLORADO · PI O'REILLY, RANDALL CHARLES · 2008 to 2012
$8.7M
ERP Studies of Dual Processes in Recognition MemoryR01MH064812 · NIMH · UNIVERSITY OF COLORADO AT BOULDER · PI CURRAN, TIMOTHY E · 2002 to 2011
$3.0M
NIMH NIH HHS P50 MH079485NIMH NIH HHS R01 MH064812
6 · The paper itself

Abstract

Introduction: Although previous research suggests that genetic variation in dopaminergic genes may affect recognition memory, the role dopamine transporter expression may have on the behavioral and EEG correlates of recognition memory has not been well established. Objectives: The study aims to reveal how individual differences in dopaminergic functioning due to genetic variations in the dopamine transporter gene influences behavioral and EEG correlates of recognition memory. Methods: Fifty-eight participants performed an item recognition task. Participants were asked to retrieve 200 previously presented words while brain activity was recorded with EEG. Regions of interest were established in scalp locations associated with recognition memory. Mean ERP amplitudes and event-related spectral perturbations when correctly remembering old items (hits) and recognizing new items (correct rejections) were compared as a function of dopamine transporter group. Results: Participants in the dopamine transporter group that codes for increased dopamine transporter expression (10/10 homozygotes) display slower reaction times compared to participants in the dopamine transporter group associated with the expression of fewer dopamine transporters (9R-carriers). 10/10 homozygotes further displayed differences in ERP and oscillatory activity compared to 9R-carriers. 10/10 homozygotes fail to display the left parietal old/new effect, an ERP signature of recognition memory associated with the amount of information retrieved. 10/10 homozygotes also displayed greater decreases of alpha and beta oscillatory activity during item memory retrieval compared to 9R-carriers. Conclusion: Compared to 9R-carriers, 10/10 homozygotes display slower hit and correct rejection reaction times, an absence of the left parietal old/new effect, and greater decreases in alpha and beta oscillatory activity during recognition memory. These results suggest that dopamine transporter polymorphisms influence recognition memory.

Indexed as

AdolescentAdultDopamine Plasma Membrane Transport ProteinsElectroencephalographyEvoked PotentialsFemaleHeterozygoteHomozygoteHumansIndividualityMaleMental RecallPolymorphism, GeneticReaction TimeRecognition, PsychologyYoung AdultDopamine Plasma Membrane Transport ProteinsSLC6A3 protein, humanDATitem memoryold/new effectoscillations

Identifiers

PMID29299388
PMCPMC5745248

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Registered trials

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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.