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Emulation as a behavioral strategy underlying spatial observational learning in rats
Linköping University, Department of Biomedical and Clinical Sciences, Center for Social and Affective Neuroscience. Linköping University, Faculty of Medicine and Health Sciences. Univ Chile, Chile.
Univ Chile, Chile.
Univ Chile, Chile.
Univ Chile, Chile.
2025 (English)In: Behavioural Brain Research, ISSN 0166-4328, E-ISSN 1872-7549, Vol. 491, article id 115645Article in journal (Refereed) Published
Abstract [en]

Humans and several non-human species have shown the ability to learn by observing an experimented conspecific. A basic form of this learning is spatial observational learning (sOL), where a na & iuml;ve animal improves their accuracy in a spatial task after witnessing a demonstrator solve the same task. This ability has gained neurophysiological support with the discovery of hippocampal CA1 social place cells, which encoded the position of others, and the role of CA2 and ventral CA1 neurons in processing and storing social memory. However, the direct role of the hippocampus in accomplishing sOL and the behavioral changes adopted by the observer animal have not been fully understood. Observational learning can be explained by behavioral processes such as imitation, emulation, or local enhancement. We used a modified version of the oasis maze to unravel the strategy unfolded by na & iuml;ve observer rats during sOL. Our results suggest that emulation is the primary strategy implemented by observers by switching from a free-foraging approach to goal-directed behavior. Furthermore, the pharmacological inactivation of the hippocampus during the observation period impeded sOL, revealing the necessity of this structure for engaging in this behavioral change. Our results propose that the hippocampus is necessary for the internal representation of the demonstrator in the space and their movement towards a particular area and for the animal comprehension of the behavioral purpose of others during observational learning.

Place, publisher, year, edition, pages
ELSEVIER , 2025. Vol. 491, article id 115645
Keywords [en]
Hippocampus; Observational learning; Emulation; Local enhancement
National Category
Behavioral Sciences Biology
Identifiers
URN: urn:nbn:se:liu:diva-214430DOI: 10.1016/j.bbr.2025.115645ISI: 001501500000001PubMedID: 40414311Scopus ID: 2-s2.0-105005854315OAI: oai:DiVA.org:liu-214430DiVA, id: diva2:1965952
Note

Funding Agencies|ICM [ICM P-10-001-F]; Iniciativa Cientifica Milenio; Science and Technology National Found [11090294]; National Commission for Science and Technology [21150519]; [P09-015F]

Available from: 2025-06-09 Created: 2025-06-09 Last updated: 2025-06-09

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