Evidence map›Paper›PMID 27028842›Full record

ArticleAlcoholism, clinical and experimental research2016

Alcohol-Preferring P Rats Exhibit Elevated Motor Impulsivity Concomitant with Operant Responding and Self-Administration of Alcohol.

Steven Wesley Beckwith, Cristine Lynn Czachowski

Open access · greenAbstract read
In one paragraph

Article in Alcoholism, clinical and experimental research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.5field-weighted citation impact, top 12% 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

18 citing papers in PubMed, 29 citations in OpenAlex.

  1. Neural correlates of inhibitory control are associated with stimulant-like effects of alcohol.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2021
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  3. Associations Between Behavioral and Neural Correlates of Inhibitory Control and Amphetamine Reward Sensitivity.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2017
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  8. Animal Models of the Behavioral Symptoms of Substance Use Disorders.Cold Spring Harbor perspectives in medicine · 2021
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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 2 institutions in 1 country.

Steven Wesley BeckwithDepartment of Psychology (SWB, CLC), Indiana University Purdue University Indianapolis, Indianapolis, Indiana.
Cristine Lynn CzachowskiDepartment of Psychology (SWB, CLC), Indiana University Purdue University Indianapolis, Indianapolis, Indiana.
Indiana University – Purdue University Indianapolis · USUniversity of Indianapolis · US

Funding

Translational Research and Science Education (OUT)P60AA007611 · NIAAA · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI Marian Lee Logrip · 2003 to 2026
$45.5M
TRAINING GRANT ON GENETICS ASPECTS OF ALCOHOLISMT32AA007462 · NIAAA · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI CRISTINE L CZACHOWSKI · 1985 to 2026
$10.7M
NIAAA NIH HHS P60 AA007611NIAAA NIH HHS T32 AA007462
6 · The paper itself

Abstract

backgroundIncreased levels of impulsivity are associated with increased illicit drug use and alcoholism. Previous research in our laboratory has shown that increased levels of delay discounting (a decision-making form of impulsivity) are related to appetitive processes governing alcohol self-administration as opposed to purely consummatory processes. Specifically, the high-seeking/high-drinking alcohol-preferring P rats showed increased delay discounting compared to nonselected Long Evans rats (LE) whereas the high-drinking/moderate-seeking HAD2 rats did not. The P rats also displayed a perseverative pattern of behavior such that during operant alcohol self-administration they exhibited greater resistance to extinction.

methodsOne explanation for the previous findings is that P rats have a deficit in response inhibition. This study followed up on this possibility by utilizing a countermanding paradigm (stop signal reaction time [SSRT] task) followed by operant self-administration of alcohol across increasing fixed ratio requirements (FR; 1, 2, 5, 10, and 15 responses). In separate animals, 24-hour access 2-bottle choice (10% EtOH vs. water) drinking was assessed.

resultsIn the SSRT task, P rats exhibited an increased SSRT compared to both LE and HAD2 rats indicating a decrease in behavioral inhibition in the P rats. Also, P rats showed increased operant self-administration across all FRs and the greatest increase in responding with increasing FR requirements. Conversely, the HAD2 and LE had shorter SSRTs and lower levels of operant alcohol self-administration. However, for 2-bottle choice drinking HAD2s and P rats consumed more EtOH and had a greater preference for EtOH compared to LE.

conclusionsThese data extend previous findings showing the P rats to have increased delay discounting (decision-making impulsivity) and suggest that P rats also have a lack of behavioral inhibition (motor impulsivity). This supports the notion that P rats are a highly impulsive as well as "high-seeking" model of alcoholism, and that the HAD2s' elevated levels of alcohol consumption are not mediated via appetitive processes or impulsivity.

Indexed as

Conditioning, OperantImpulsive BehaviorInhibition, PsychologicalAnimalsChoice BehaviorEthanolMaleRatsRats, Inbred StrainsReaction TimeReinforcement ScheduleSelf AdministrationSpecies SpecificityEthanolAlcohol Self-AdministrationImpulsivityRatSelected Line

Identifiers

PMID27028842
PMCPMC4844820
OpenAlexW2316513857

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.