The evolution of primate short-term memory

ManyPrimates, et al (2022) 'The evolution of primate short-term memory.' Animal Behavior and Cognition, 9 (4). pp. 428-516. ISSN 2372-5052

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Official URL: https://doi.org/10.26451/abc.09.04.06.2022

Abstract

Short-term memory is implicated in a range of cognitive abilities and is critical for understanding primate cognitive evolution. To investigate the effects of phylogeny, ecology and sociality on short-term memory, we tested the largest and most diverse primate sample to date (421 non-human primates across 41 species) in an experimental delayed-response task. Our results confirm previous findings that longer delays decrease memory performance across species and taxa. Our analyses demonstrate a considerable contribution of phylogeny over ecological and social factors on the distribution of short-term memory performance in primates; closely related species had more similar short-term memory abilities. Overall, individuals in the branch of Hominoidea performed better compared to Cercopithecoidea, who in turn performed above Platyrrhini and Strepsirrhini. Interdependencies between phylogeny and socioecology of a given species presented an obstacle to disentangling the effects of each of these factors on the evolution of shortterm memory capacity. However, this study offers an important step forward in understanding the interspecies and individual variation in short-term memory ability by providing the first phylogenetic reconstruction of this trait’s evolutionary history. The dataset constitutes a unique resource for studying the evolution of primate cognition and the role of short-term memory in other cognitive abilities.

Item Type: Article
UN SDGs: Goal 15: Life on Land
Keywords: cognitive evolution, short-term memory, primate cognition, phylogenetic analysis
Divisions: School of Sciences
Research Centres and Groups: Psychology Research Centre for Health and Cognition
Identification Number: https://doi.org/10.26451/abc.09.04.06.2022
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Date Deposited: 02 Mar 2023 17:22
Last Modified: 02 Mar 2023 17:22
URI / Page ID: https://researchspace.bathspa.ac.uk/id/eprint/15280
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