Author Correction: Dissociating task acquisition from expression during learning reveals latent knowledge
| Autor: | Kelly Fogelson, Rupesh Kumar, Robert C. Froemke, Kishore V. Kuchibhotla, Peter C. Holland, Tom Hindmarsh Sten, Eleni S. Papadoyannis, Yves Boubenec, Sarah Elnozahy, Srdjan Ostojic |
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| Rok vydání: | 2020 |
| Předmět: |
Male
Science Models Neurological Decision General Physics and Astronomy General Biochemistry Genetics and Molecular Biology Article Task (project management) Learning and memory Mice Animals lcsh:Science Author Correction Multidisciplinary Behavior Animal Ferrets General Chemistry Rats Expression (architecture) Biological Variation Population Models Animal lcsh:Q Female Psychology Reinforcement Psychology Cognitive psychology |
| Zdroj: | Nature Communications Nature Communications, Vol 11, Iss 1, Pp 1-1 (2020) |
| ISSN: | 2041-1723 |
| Popis: | Performance on cognitive tasks during learning is used to measure knowledge, yet it remains controversial since such testing is susceptible to contextual factors. To what extent does performance during learning depend on the testing context, rather than underlying knowledge? We trained mice, rats and ferrets on a range of tasks to examine how testing context impacts the acquisition of knowledge versus its expression. We interleaved reinforced trials with probe trials in which we omitted reinforcement. Across tasks, each animal species performed remarkably better in probe trials during learning and inter-animal variability was strikingly reduced. Reinforcement feedback is thus critical for learning-related behavioral improvements but, paradoxically masks the expression of underlying knowledge. We capture these results with a network model in which learning occurs during reinforced trials while context modulates only the read-out parameters. Probing learning by omitting reinforcement thus uncovers latent knowledge and identifies context- not “smartness”- as the major source of individual variability. Performance is generally used as a metric to assay whether an animal has learnt a particular perceptual task. Here the authors demonstrate that in the context of probe trials without the possibility of reward, animals perform the correct instrumental response suggesting a latent knowledge of the task much before it is manifest in their performance. |
| Databáze: | OpenAIRE |
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