Evidence map›Paper›PMID 20298708›Full record

ArticlePhysiology & behavior2010

Reinforcing efficacy of fat, as assessed by progressive ratio responding, depends upon availability not amount consumed.

F H E Wojnicki, R K Babbs, R L W Corwin

Abstract read
In one paragraph

Article in Physiology & behavior, 2010. 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
–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

18 citing papers in PubMed.

  1. Review
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  16. Hedonic and incentive signals for body weight control.Reviews in endocrine & metabolic disorders · 2011
    Review
  17. Review
  18. Food reinforcement, energy intake, and macronutrient choice.The American journal of clinical nutrition · 2011
    Article
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

3 authors.

F H E WojnickiPennsylvania State University, Nutritional Sciences, 110 Chandlee Laboratory, University Park, PA 16802, USA. fhw3@psu.edu
R K Babbs
R L W Corwin

Funding

NEUROBIOLOGY OF BINGE-TYPE BEHAVIORR01MH067943 · NIMH · PENNSYLVANIA STATE UNIVERSITY-UNIV PARK · PI CORWIN, REBECCA L · 2004 to 2013
$2.7M
NIMH NIH HHS R01 MH067943NIMH NIH HHS R01-MH67943
6 · The paper itself

Abstract

Intermittent limited access to an optional source of dietary fat can induce binge-type behavior in rats. However, the ability of such access to alter the reinforcing efficacy of fat has not been clearly demonstrated. In this study, performance under progressive ratio one (PR1) and three (PR3) schedules of shortening (fat) reinforcement was assessed in non-food deprived rats (n=15/group). One group of rats had intermittent access to a dietary fat option (INT, 1-hour shortening access in the home cage each Monday, Wednesday, and Friday), whereas the other group had daily access to the fat option (D, 1-hour shortening access daily). Chow and water were continuously available. After five weeks, the INT group consumed more shortening during the 1-hour access period than did the D group. Rats were then trained to lever press for a solid shortening reinforcer (0.1 gm). INT rats earned significantly more reinforcers than did D rats under PR1, but not under PR3. Subgroups of INT and D rats (n=7 each) were matched on the amount of shortening consumed in the home cage during week five of the protocol and the PR data were reanalyzed. The INT subgroup earned significantly more reinforcers than the D subgroup did under PR1, but not PR3. These results demonstrate that: (1) intermittent access to shortening in the home cage, but not the amount consumed during the access period (i.e. bingeing), increases the reinforcing efficacy of solid shortening; and (2) the type of PR schedule is critical in delineating differences between the groups.

Indexed as

Reinforcement, PsychologyAnimalsBehavior, AnimalBulimiaDietary FatsDrug Administration ScheduleEatingFeeding BehaviorMaleRatsRats, Sprague-DawleyDietary Fats

Identifiers

PMID20298708
PMCPMC2874653

What OpenQuestion holds

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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.