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Relative recency influences object-in-context memory

Tam, Shu K.E.; Bonardi, Charlotte; Robinson, Jasper

Authors

Shu K.E. Tam



Abstract

In two experiments rats received training on an object-in-context (OIC) task, in which they received preexposure to object A in context x, followed by exposure to object B in context y. In a subsequent test both A and B are presented in either context x or context y. Usually more exploration is seen of the object that has not previously been paired with the test context, an effect attributed to the ability to remember where an object was encountered. However, in the typical version of this task, object A has also been encountered less recently than object B at test. This is precisely the arrangement in tests of ‘relatively recency’ (RR), in which more remotely presented objects are explored more than objects experienced more recently. RR could contaminate performance on the OIC task, by enhancing the OIC effect when animals are tested in context y, and masking it when the test is in context x. This possibility was examined in two experiments, and evidence for superior performance in context y was obtained. The implications of this for theoretical interpretations of recognition memory and the procedures used to explore it are discussed.

Journal Article Type Article
Publication Date Mar 15, 2015
Journal Behavioural Brain Research
Print ISSN 0166-4328
Electronic ISSN 1872-7549
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 281
APA6 Citation Tam, S. K., Bonardi, C., & Robinson, J. (2015). Relative recency influences object-in-context memory. Behavioural Brain Research, 281, https://doi.org/10.1016/j.bbr.2014.12.024
DOI https://doi.org/10.1016/j.bbr.2014.12.024
Keywords Associative learning; Discrimination; Object recognition; Pavlovian conditioning; Priming; Recognition memory
Publisher URL http://www.sciencedirect.com/science/article/pii/S0166432814008183
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0





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