Evidence map›Paper›PMID 39432328›Full record

ArticleJournal of experimental psychology. Animal learning and cognition2024

Both probability and rate of reinforcement can affect the acquisition and maintenance of conditioned responses.

Jorge Mallea, Atara Schulhof, Charles R Gallistel, Peter D Balsam

Abstract read
In one paragraph

Article in Journal of experimental psychology. Animal learning and cognition, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Probability and rate of reinforcement in negative prediction error learning.Journal of experimental psychology. Animal learning and cognition · 2025
    Article
  2. Reconceptualized Associative Learning.Perspectives on behavior science · 2025
    Review
  3. 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

4 authors.

Jorge MalleaDepartment of Psychology, Columbia University.ORCID 0000-0001-6010-4029
Atara SchulhofDepartment of Psychology, Barnard College.
Charles R GallistelRutgers Center for Cognitive Science, Rutgers University.
Peter D BalsamDepartment of Psychology, Columbia University.

Funding

Timing & Associative LearningR01MH068073 · NIMH · BARNARD COLLEGE · PI BALSAM, PETER D. · 2003 to 2024
$8.0M
Fulbright and ConicytNIMH NIH HHS R01 MH068073
6 · The paper itself

Abstract

In Pavlovian conditioning, the strength of a conditioned response is a function of the probability of reinforcement. However, manipulations of probability are often confounded with changes in the rate of reinforcement. Two between-group experiments in mice evaluated the effect of the probability of reinforcement, while controlling the rate of reinforcement, on appetitive conditioning and extinction. Experiment 1 equated the reinforcement rate by manipulating the number of reinforcements received in each reinforced trial in a critical group (one vs. two consecutive rewards). The results of this experiment showed that probability influenced the rate of responses in acquisition, even when controlling the reinforcement rate. Experiment 2 further assessed the role of probability on behavior while controlling the rate of reinforcement during the conditioned stimulus (CS) using a split-trial design, in which the total CS time was held constant but presented in different numbers of discrete trials (e.g., 50% reinforcement with two 12 s CS's vs. 100% reinforcement with a 24 s average CS duration). This experiment confirmed that probability influenced response rates, and both the probability and rate of reinforcement affected the proportion of trials with responses. Together, these results suggest that the probability of reinforcement, while having little effect on the speed at which responses emerged, affects responding even when the rate of reinforcement is held constant. The results challenge formal learning theories to account for the effects of both the probability and rate of reinforcement. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Indexed as

Conditioning, ClassicalProbabilityReinforcement, PsychologyAnimalsExtinction, PsychologicalFemaleMaleMiceMice, Inbred C57BLReinforcement Schedule

Identifiers

PMID39432328
PMCPMC11908741

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Registered trials

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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.