Evidence map›Paper›PMID 33037974›Full record

Trial reportNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology2021

Event-related potential (P300): the effects of levetiracetam in cognitive performance.

Mariana Gongora, Eduardo Nicoliche, Julio Magalhães, Renan Vicente, Silmar Teixeira, Victor Hugo Bastos, Juliana Bittencourt, Mauricio Cagy, Luis F Basile, Henning Budde and 2 more

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 30% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

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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

12 authors at 4 institutions in 2 countries.

Mariana GongoraBrain Mapping and Sensory Motor Integration, Institute of Psychiatry of the Federal University of Rio de Janeiro (IPUB/UFRJ), Rio de Janeiro, RJ, Brazil.
Eduardo NicolicheBrain Mapping and Sensory Motor Integration, Institute of Psychiatry of the Federal University of Rio de Janeiro (IPUB/UFRJ), Rio de Janeiro, RJ, Brazil. Eduardo.nicoliche@gmail.com.ORCID http://orcid.org/0000-0002-2607-5604
Julio MagalhãesBrain Mapping and Sensory Motor Integration, Institute of Psychiatry of the Federal University of Rio de Janeiro (IPUB/UFRJ), Rio de Janeiro, RJ, Brazil.
Renan VicenteBrain Mapping and Sensory Motor Integration, Institute of Psychiatry of the Federal University of Rio de Janeiro (IPUB/UFRJ), Rio de Janeiro, RJ, Brazil.
Silmar TeixeiraBrain Mapping and Functionality Laboratory, Federal University of Piauí, Parnaíba, Piauí, Brazil.
Victor Hugo BastosBrain Mapping and Functionality Laboratory, Federal University of Piauí, Parnaíba, Brazil.
Juliana BittencourtBrain Mapping and Sensory Motor Integration, Institute of Psychiatry of the Federal University of Rio de Janeiro (IPUB/UFRJ), Rio de Janeiro, RJ, Brazil.
Mauricio CagyBiomedical Engineering Program, COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
Luis F BasileLaboratory of Psychophysiology, Faculdade da Saúde, UMESP, São Paulo, Brazil.
Henning BuddeFaculty of Human Sciences, Medical School Hamburg, Hamburg, Germany.
Bruna VelasquesInstitute of Applied Neuroscience (INA), Rio de Janeiro, Brazil.
Pedro RibeiroBrain Mapping and Sensory Motor Integration, Institute of Psychiatry of the Federal University of Rio de Janeiro (IPUB/UFRJ), Rio de Janeiro, RJ, Brazil.
Universidade Federal do Rio de Janeiro · BRUniversidade Federal do Piauí · BRMSH Medical School Hamburg – University of Applied Sciences and Medical University · DEUniversidade Metodista de São Paulo · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe current study is a reanalysis in the time domain of EEG data collection in healthy adults during an oddball paradigm using levetiracetam (LEV) vs. placebo acute administration. Specifically, the event-related potential (ERP) technique provides a tool for exploring the EEG responses to a specific event/stimulus. One of the ERP components widely studied is the P300 component, which is associated with the last stage of information processing and a general measurement of "cognitive efficiency."

methodsThe sample was composed of thirteen healthy right-handed individuals randomized to participate under two conditions: LEV and placebo. Electrophysiological measures were collected before and after drug intake. We explored the oddball paradigm, which is commonly used with healthy individuals to investigate the stages of information processing.

resultsThe electrophysiological results showed a main effect of condition on P300 amplitude for the frontal (F3, Fz, F4), central (C3, Cz, C4), and parietal electrodes (P3, Pz, P4). The post hoc comparisons (Scheffé's test) demonstrated the significant differences between electrodes. Regarding P300 latency, all regions represented a main effect of condition. A P300 latency reduction was observed during LEV condition compared with placebo.

conclusionOur study observed the ERP component-P300-through the variation of its amplitude and latency to evaluate a supposed higher CNS efficiency when participants were under the LEV effect. Our findings sustain this premise, mainly due to reducing in P300 latency for the LEV condition, supporting the neural efficiency hypothesis.

Indexed as

ElectroencephalographyEvoked PotentialsAdultCognitionEvent-Related Potentials, P300HumansLevetiracetamReaction TimeLevetiracetamCognitive enhancerElectroencephalographyLevetiracetam (LEV)Reaction timeVisual evoked-related potential

Identifiers

PMID33037974
OpenAlexW3092171354

What OpenQuestion holds

Textmetadata
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.