Evidence map›Paper›PMID 29437929›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2018

Ketamine Alters Lateral Prefrontal Oscillations in a Rule-Based Working Memory Task.

Liya Ma, Kevin Skoblenick, Kevin Johnston, Stefan Everling

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

18 citing papers in PubMed, 26 citations in OpenAlex.

  1. Review
  2. Effects of Ketamine on Frontoparietal Interactions in a Rule-Based Antisaccade Task in Macaque Monkeys.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
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  16. Modeling Schizophrenia's Abnormal Cortical Neural Synchrony in Monkeys.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018
    Article
  17. Working Memory: Delay Activity, Yes! Persistent Activity? Maybe Not.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018
    Article
  18. Article
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

4 authors at 4 institutions in 4 countries.

Liya MaRobarts Research Institute, lma84@uwo.ca.ORCID 0000-0003-0183-7155
Kevin SkoblenickDepartment of Anatomy and Cell Biology.
Kevin JohnstonDepartment of Physiology and Pharmacology, and.ORCID 0000-0001-9481-6251
Stefan EverlingRobarts Research Institute.
Czech Academy of Sciences, Institute of Physiology · CZInstitute of Cell Biology and Neurobiology · ITRobotics Research (United States) · USWestern University · CA

Funding

CIHR FRN 148365
6 · The paper itself

Abstract

Acute administration of N-methyl-D-aspartate receptor (NMDAR) antagonists in healthy humans and animals produces working memory deficits similar to those observed in schizophrenia. However, it is unclear whether they also lead to altered low-frequency (≤60 Hz) neural oscillatory activities similar to those associated with schizophrenia during working memory processes. Here, we recorded local field potentials (LFPs) and single-unit activity from the lateral prefrontal cortex (LPFC) of three male rhesus macaque monkeys while they performed a rule-based prosaccade and antisaccade working memory task both before and after systemic injections of a subanesthetic dose (≤0.7 mg/kg) of ketamine. Accompanying working-memory impairment, ketamine enhanced the low-gamma-band (30-60 Hz) and dampened the beta-band (13-30 Hz) oscillatory activities in the LPFC during both delay periods and intertrial intervals. It also increased task-related alpha-band activities, likely reflecting compromised attention. Beta-band oscillations may be especially relevant to working memory processes because stronger beta power weakly but significantly predicted shorter saccadic reaction time. Also in beta band, ketamine reduced the performance-related oscillation as well as the rule information encoded in the spectral power. Ketamine also reduced rule information in the spike field phase consistency in almost all frequencies up to 60 Hz. Our findings support NMDAR antagonists in nonhuman primates as a meaningful model for altered neural oscillations and synchrony, which reflect a disorganized network underlying the working memory deficits in schizophrenia.

Indexed as

Alpha RhythmAnimalsBeta RhythmElectroencephalographyExcitatory Amino Acid AntagonistsGamma RhythmKetamineMacaca mulattaMaleMemory, Short-TermPrefrontal CortexPsychomotor PerformanceReaction TimeReceptors, N-Methyl-D-AspartateSaccadesExcitatory Amino Acid AntagonistsKetamineReceptors, N-Methyl-D-Aspartatealpha bandbeta bandgamma bandlateral prefrontal cortexlocal field potentialNMDA antagonist

Identifiers

PMID29437929
PMCPMC6705900
OpenAlexW2785602314

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.