Evidence map›Paper›PMID 22918519›Full record

ArticlePsychopharmacology2013

Working memory in the odor span task: effects of chlordiazepoxide, dizocilpine (MK801), morphine, and scopolamine.

Mark Galizio, Melissa Deal, Andrew Hawkey, Brooke April

Open access · greenAbstract readComparative Study
In one paragraph

Article in Psychopharmacology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.8field-weighted citation impact, top 18% 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

25 citing papers in PubMed, 38 citations in OpenAlex.

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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.

Mark GalizioUniversity of North Carolina Wilmington, Wilmington, USA. galizio@uncw.edu
Melissa Deal
Andrew Hawkey
Brooke April
University of North Carolina Wilmington · US

Funding

Drugs of Abuse and Memory SpanR15DA029252 · NIDA · UNIVERSITY OF NORTH CAROLINA WILMINGTON · PI GALIZIO, JOSEPH MARK · 2010 to 2016
$682k
NIDA NIH HHS DA029252NIDA NIH HHS R15 DA029252
6 · The paper itself

Abstract

rationaleA number of tasks are used to assess working memory in rodents, but the odor span task (OST) is unique in studying performance as a function of the number of stimuli to remember.

objectivesThe purpose of the present study was to better characterize the behavioral pharmacology of the OST by exploring the effects of several amnestic agents including an NMDA antagonist (dizocilpine), a positive GABA-A modulator (chlordiazepoxide), an anticholinergic compound (scopolamine), and as a negative control, an opiate receptor agonist (morphine).

methodsRats were trained to perform on the OST which is a non-match-to-sample procedure with an incrementing number of sample odors to remember as the session progresses. Trials with a simple odor discrimination task (SD) were interspersed to provide a control for effects unrelated to memory load.

resultsAll four drugs disrupted performances on the OST task in a dose-dependent fashion, but only the NMDA antagonist dizocilpine produced impairments that were clearly dependent on the number of stimuli to remember. Dizocilpine impaired OST performance at a dose (0.1 mg/kg) that did not affect SD, and that impairment depended on memory load. Chlordiazepoxide (3.0 mg/kg) also produced amnestic effects that were manifest by shorter memory spans and runs of correct responding. In contrast, morphine and scopolamine impaired OST accuracy only at doses that also disrupted SD (18.0 and 0.3 mg/kg, respectively).

conclusionsThese results provide evidence of NMDA and benzodiazepine modulation of working memory as assessed by the OST.

Indexed as

Analgesics, OpioidAnimalsChlordiazepoxideCholinergic AntagonistsDiscrimination LearningDizocilpine MaleateDose-Response Relationship, DrugExcitatory Amino Acid AntagonistsGABA ModulatorsMaleMemory, Short-TermMorphineOlfactory PerceptionRatsRats, Sprague-DawleyReceptors, N-Methyl-D-AspartateAnalgesics, OpioidChlordiazepoxideCholinergic AntagonistsDizocilpine MaleateExcitatory Amino Acid AntagonistsGABA ModulatorsMorphineReceptors, N-Methyl-D-AspartateScopolamine

Identifiers

PMID22918519
PMCPMC3529754
OpenAlexW2142792126

What OpenQuestion holds

Textmetadata
LicenceTDM
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.