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Related Experiment Video

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Exploring the Role of Deontic Reasoning and World Knowledge in Wason´s Selection Task

Exploring the Role of Deontic Reasoning and World Knowledge in Wason´s Selection Task

Published on: July 22, 2025

Dissociating task acquisition from expression during learning reveals latent knowledge.

Kishore V Kuchibhotla^1,2, Tom Hindmarsh Sten^3,4,5, Eleni S Papadoyannis^3,4

¹Department of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, MD, 21218, USA. kkuchib1@jhu.edu.

Nature Communications

|May 16, 2019

Summary

This summary is machine-generated.

Testing context significantly impacts learning performance, masking underlying knowledge. Omitting reinforcement during probe trials reveals latent knowledge and highlights context, not "smartness," as the key factor in individual variability.

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Area of Science:

Neuroscience
Cognitive Science
Animal Behavior

Background:

Cognitive task performance during learning is a common metric for knowledge acquisition.
However, this performance is known to be influenced by contextual factors, leading to controversy regarding its accuracy as a knowledge measure.

Purpose of the Study:

To investigate the extent to which testing context influences performance during learning, versus reflecting underlying knowledge.
To differentiate between knowledge acquisition and knowledge expression in animal models.

Main Methods:

Mice, rats, and ferrets were trained on various tasks, interleaving reinforced trials with probe trials where reinforcement was omitted.
A network model was employed to capture the observed results, with learning occurring during reinforced trials and context modulating readout parameters.

Main Results:

Across all species and tasks, animals performed significantly better during probe trials (without reinforcement) compared to reinforced trials.
Inter-animal variability in performance was substantially reduced during probe trials.
Reinforcement feedback was found to be critical for behavioral improvement but paradoxically masked the expression of latent knowledge.

Conclusions:

The study demonstrates that reinforcement feedback is crucial for learning-related behavioral improvements but can obscure the true expression of underlying knowledge.
Omitting reinforcement during testing (probing) effectively uncovers latent knowledge.
Contextual factors, rather than inherent "smartness," are identified as the primary source of individual variability in cognitive task performance during learning.