Evidence map›Paper›PMID 28508125›Full record

ArticleAnimal cognition2017

Judgement bias in pigs is independent of performance in a spatial holeboard task and conditional discrimination learning.

Sanne Roelofs, Eimear Murphy, Haifang Ni, Elise Gieling, Rebecca E Nordquist, F Josef van der Staay

Open access · hybridAbstract read
In one paragraph

Article in Animal cognition, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
4.4field-weighted citation impact, top 6% 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

12 citing papers in PubMed, 21 citations in OpenAlex.

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  10. Heritabilities and co-variation among cognitive traits in red junglefowl.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2018
    Article
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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 at 2 institutions in 1 country.

Sanne RoelofsBehaviour and Welfare Group (Formerly: Emotion and Cognition Group), Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 7, 3584 CL, Utrecht, The Netherlands. S.Roelofs@UU.nl.
Eimear MurphyBehaviour and Welfare Group (Formerly: Emotion and Cognition Group), Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 7, 3584 CL, Utrecht, The Netherlands.
Haifang NiBehaviour and Welfare Group (Formerly: Emotion and Cognition Group), Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 7, 3584 CL, Utrecht, The Netherlands.
Elise GielingBehaviour and Welfare Group (Formerly: Emotion and Cognition Group), Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 7, 3584 CL, Utrecht, The Netherlands.
Rebecca E NordquistBehaviour and Welfare Group (Formerly: Emotion and Cognition Group), Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 7, 3584 CL, Utrecht, The Netherlands.
F Josef van der StaayBehaviour and Welfare Group (Formerly: Emotion and Cognition Group), Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 7, 3584 CL, Utrecht, The Netherlands.
Utrecht University · NLUniversity Medical Center Utrecht · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Biases in judgement of ambiguous stimuli, as measured in a judgement bias task, have been proposed as a measure of the valence of affective states in animals. We recently suggested a list of criteria for behavioural tests of emotion, one of them stating that responses on the task used to assess emotionality should not be confounded by, among others, differences in learning capacity, i.e. must not simply reflect the cognitive capacity of an animal. We performed three independent studies in which pigs acquired a spatial holeboard task, a free choice maze which simultaneously assesses working memory and reference memory. Next, pigs learned a conditional discrimination between auditory stimuli predicting a large or small reward, a prerequisite for assessment of judgement bias. Once pigs had acquired the conditional discrimination task, optimistic responses to previously unheard ambiguous stimuli were measured in the judgement bias task as choices indicating expectation of the large reward. We found that optimism in the judgement bias task was independent of all three measures of learning and memory indicating that the performance is not dependent on the pig's cognitive abilities. These results support the use of biases in judgement as proxy indicators of emotional valence in animals.

Indexed as

Discrimination LearningJudgmentSwineAnimalsConditioning, ClassicalMemory, Short-TermSus scrofaCognitive holeboardCognitive judgement biasConditional discriminationLearningPigWorking memory, reference memory

Identifiers

PMID28508125
PMCPMC5486501
OpenAlexW2616813233

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.