Evidence map›Paper›PMID 26194915›Full record

ArticlePsychopharmacology2015

Comparing the effects of subchronic phencyclidine and medial prefrontal cortex dysfunction on cognitive tests relevant to schizophrenia.

K A L McAllister, A C Mar, D E Theobald, L M Saksida, T J Bussey

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Psychopharmacology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

13 citing papers in PubMed, 23 citations in OpenAlex.

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  10. Prefrontal cortex executive processes affected by stress in health and disease.Progress in neuro-psychopharmacology & biological psychiatry · 2018
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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 at 2 institutions in 1 country.

K A L McAllisterUniversity of Cambridge Department of Psychology, Downing Street, Cambridge, CB2 3EB, UK. kalmcallister@gmail.com.
A C MarUniversity of Cambridge Department of Psychology, Downing Street, Cambridge, CB2 3EB, UK.
D E TheobaldUniversity of Cambridge Department of Psychology, Downing Street, Cambridge, CB2 3EB, UK.
L M SaksidaUniversity of Cambridge Department of Psychology, Downing Street, Cambridge, CB2 3EB, UK.
T J BusseyUniversity of Cambridge Department of Psychology, Downing Street, Cambridge, CB2 3EB, UK.
University of Cambridge · GBWellcome Trust · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationaleIt is becoming increasingly clear that the development of treatments for cognitive symptoms of schizophrenia requires urgent attention, and that valid animal models of relevant impairments are required. With subchronic psychotomimetic agent phencyclidine (scPCP), a putative model of such impairment, the extent to which changes following scPCP do or do not resemble those following dysfunction of the prefrontal cortex is of importance.

objectivesThe present study carried out a comparison of the most common scPCP dosing regimen with excitotoxin-induced medial prefrontal cortex (mPFC) dysfunction in rats, across several cognitive tests relevant to schizophrenia.

methodsScPCP subjects were dosed intraperitoneal with 5 mg/kg PCP or vehicle twice daily for 1 week followed by 1 week washout prior to behavioural testing. mPFC dysfunction was induced via fibre-sparing excitotoxin infused into the pre-limbic and infralimbic cortex. Subjects were tested on spontaneous novel object recognition, touchscreen object-location paired-associates learning and touchscreen reversal learning.

resultsA double-dissociation was observed between object-location paired-associates learning and object recognition: mPFC dysfunction impaired acquisition of the object-location task but not spontaneous novel object recognition, while scPCP impaired spontaneous novel object recognition but not object-location associative learning. Both scPCP and mPFC dysfunction resulted in a similar facilitation of reversal learning.

conclusionsThe pattern of impairment following scPCP raises questions around its efficacy as a model of cognitive impairment in schizophrenia, particularly if importance is placed on faithfully replicating the effects of mPFC dysfunction.

Indexed as

Prefrontal CortexSchizophrenic PsychologyAnimalsBehavior, AnimalBrain DiseasesCognitionExcitatory Amino Acid AgonistsHallucinogensIbotenic AcidInjections, IntraperitonealLearningLimbic SystemMaleMemoryPhencyclidineRatsExcitatory Amino Acid AgonistsHallucinogensIbotenic AcidPhencyclidineAnimal modelAssociative learningDiscriminationGlutamateLearning and memoryObject recognitionPhencyclidinePrefrontal cortexRatSchizophrenia

Identifiers

PMID26194915
OpenAlexW2137545726

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.