Evidence map›Paper›PMID 28496171›Full record

ArticleScientific reports2017

Altered balance of excitatory and inhibitory learning in a genetically modified mouse model of glutamatergic dysfunction relevant to schizophrenia.

David J Sanderson, Aletheia Lee, Rolf Sprengel, Peter H Seeburg, Paul J Harrison, David M Bannerman

Abstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

9 citing papers in PubMed.

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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

6 authors.

David J SandersonDepartment of Psychology, Durham University, Science Site, South Road, Durham, DH1 3LE, UK. david.sanderson@durham.ac.uk.ORCID 0000-0002-3560-5507
Aletheia LeeDepartment of Experimental Psychology, University of Oxford, 9 South Parks Road, Oxford, OX1 3UD, UK.
Rolf SprengelMax-Planck Institute of Medical Research, Department of Molecular Neurobiology, D-69120, Heidelberg, Jahnstrasse 29, Germany.ORCID 0000-0003-3370-0970
Peter H SeeburgMax-Planck Institute of Medical Research, Department of Molecular Neurobiology, D-69120, Heidelberg, Jahnstrasse 29, Germany.
Paul J HarrisonDepartment of Psychiatry, University of Oxford, and Oxford Health NHS Foundation Trust, Warneford Hospital, Oxford, OX3 7JX, UK.ORCID 0000-0002-6719-1126
David M BannermanDepartment of Experimental Psychology, University of Oxford, 9 South Parks Road, Oxford, OX1 3UD, UK.

Funding

Medical Research Council MR/N004396/1Wellcome Trust
6 · The paper itself

Abstract

The GluA1 AMPAR subunit (encoded by the Gria1 gene) has been implicated in schizophrenia. Gria1 knockout in mice results in recently experienced stimuli acquiring aberrantly high salience. This suggests that GluA1 may be important for learning that is sensitive to the temporal contiguity between events. To test this, mice were trained on a Pavlovian trace conditioning procedure in which the presentation of an auditory cue and food were separated by a temporal interval. Wild-type mice initially learnt, but with prolonged training came to withhold responding during the trace-conditioned cue, responding less than for another cue that was nonreinforced. Gria1 knockout mice, in contrast, showed sustained performance over training, responding more to the trace-conditioned cue than the nonreinforced cue. Therefore, the trace-conditioned cue acquired inhibitory properties (signalling the absence of food) in wild-type mice, but Gria1 deletion impaired the acquisition of inhibition, thus maintaining the stimulus as an excitatory predictor of food. Furthermore, when there was no trace both groups showed successful learning. These results suggest that cognitive abnormalities in disorders like schizophrenia in which gluatamatergic signalling is implicated may be caused by aberrant salience leading to a change in the nature of the information that is encoded.

Indexed as

LearningNeural InhibitionAnimalsConditioning, ClassicalDisease Models, AnimalFemaleGlutamatesMaleMice, TransgenicReceptors, AMPASchizophreniaGlutamatesReceptors, AMPA

Identifiers

PMID28496171
PMCPMC5431791

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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.