Evidence map›Paper›PMID 19643149›Full record

ArticleBehavioural brain research2009

Medial prefrontal administration of MK-801 impairs T-maze discrimination reversal learning in weanling rats.

Deborah J Watson, Mark E Stanton

Open access · greenAbstract read
In one paragraph

Article in Behavioural brain research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

15 citing papers in PubMed, 29 citations in OpenAlex.

  1. NMDA receptor ablation in medial prefrontal cortex disrupts value updating and reward history integration.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
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  8. Adolescent ΔFrontiers in psychiatry · 2020
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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

2 authors at 1 institution in 1 country.

Deborah J WatsonUniversity of Delaware, Department of Psychology, Newark, DE 19716, United States. dwatson@psych.udel.edu
Mark E Stanton
University of Delaware · US

Funding

GENOTYPE AND PHENOTYPE OF BRAINSTEM INJURY IN AUTISMP01HD035466 · NICHD · UNIVERSITY OF ROCHESTER · PI RODIER, PATRICIA M · 1998 to 2002
$2.8M
ALCOHOL &DEVELOPMENT:EFFECTS ON CEREBELLAR SYSTEMSR01AA011945 · NIAAA · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI GOODLETT, CHARLES R · 1998 to 2007
$2.6M
Neurobiology of Spatial Reversal LearningF31MH079635 · NIMH · UNIVERSITY OF DELAWARE · PI WATSON, DEBORAH JEAN · 2006 to 2008
$80k
NIAAA NIH HHS 1-R01-AA11945NIAAA NIH HHS R01 AA011945NICHD NIH HHS 1-PO1-HD35466NICHD NIH HHS P01 HD035466NIMH NIH HHS F31 MH079635
6 · The paper itself

Abstract

Several executive functions rely on the medial prefrontal cortex (mPFC) in the rat. Aspiration and neurotoxic lesions of the mPFC impair reversal learning in adult rats. Systemic administration of MK-801, an NMDA-receptor antagonist, impairs T-maze reversal learning in weanling rats but the role of mPFC NMDA-receptor antagonism in this effect is not known in either adult or young animals. This set of studies showed that mPFC NMDA receptors are specifically involved in T-maze discrimination reversal in weanling rats. In Experiment 1, 26-day-old rats (P26) demonstrated a dose-dependent impairment following bilateral mPFC administration of either 2.5 or 5.0microg MK-801 or saline (vehicle) during the reversal training phase only. In Experiment 2, P26 rats were trained on the same task, but four groups of rats received bilateral mPFC infusions during acquisition only (MK-SAL), reversal only (SAL-MK), both phases (MK-MK), or neither phase (SAL-SAL). MK-801 impaired performance only when infused during reversal. This suggests that NMDA-receptor antagonism in the mPFC is selectively involved in reversal learning during development and this may account for the previously reported effects of systemic MK-801 on T-maze discrimination reversal in weanling rats.

Indexed as

AgingAnimalsDizocilpine MaleateDose-Response Relationship, DrugExcitatory Amino Acid AntagonistsFemaleLearning DisabilitiesMaleMaze LearningPrefrontal CortexRatsRats, Long-EvansReceptors, N-Methyl-D-AspartateReversal LearningTime FactorsDizocilpine MaleateExcitatory Amino Acid AntagonistsReceptors, N-Methyl-D-Aspartate

Identifiers

PMID19643149
PMCPMC2766851
OpenAlexW2006007844

What OpenQuestion holds

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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.