Evidence map›Paper›PMID 12167678›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2002

Glutamatergic activity in the amygdala signals visceral input during taste memory formation.

Maria Isabel Miranda, Guillaume Ferreira, Leticia Ramirez-Lugo, Federico Bermudez-Rattoni

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

36 citing papers in PubMed, 96 citations in OpenAlex.

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  14. Microglial activation enhances associative taste memory through purinergic modulation of glutamatergic neurotransmission.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2015
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  15. Review
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  17. Blockade of stimulus convergence in amygdala neurons disrupts taste associative learning.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2013
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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

4 authors at 1 institution in 1 country.

Maria Isabel MirandaDepartamento de Neurociencias, Instituto de Fisiologia Celular, Universidad Nacional Autónoma de México, 04510 México D.F., México.
Guillaume Ferreira
Leticia Ramirez-Lugo
Federico Bermudez-Rattoni
Universidad Nacional Autónoma de México · MX

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Conditioned taste aversion (CTA) is a learning paradigm in which an animal avoids a taste (conditioned stimulus) previously associated with visceral toxic effects [or unconditioned stimulus (US)]. Although many studies have implicated glutamate-mediated neurotransmission in memory consolidation of different types of learning tasks, including CTA, the exact role of this neurotransmitter system in memory formation is not known. Thus, we set out to determine whether glutamate mediates signaling of the US in CTA. We present evidence obtained by in vivo microdialysis that the US (i.p. injection of lithium chloride) induced a dramatic increase in glutamate release in the amygdala and a modest but significant release in the insular cortex. Moreover, CTA can be elicited by intra-amygdalar microinjections of glutamate; consequently, when glutamate is administered just before the presentation of a weak US, a clear CTA is induced. In contrast, the injection of glutamate alone or glutamate 2 h after the suboptimal US did not have any effect on the acquisition of CTA. These results indicate that glutamate activation of the amygdala can partially substitute the US in CTA, thus providing a clear indication that the amygdala conveys visceral information for this kind of memory.

Indexed as

AmygdalaAnimalsAvoidance LearningBrain MappingConditioning, PsychologicalGlutamic AcidMaleMemoryMicroinjectionsRatsRats, WistarSaccharinTasteGlutamic AcidSaccharin

Identifiers

PMID12167678
PMCPMC123271
OpenAlexW2161321561

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.