Social modulation of risky decision-making in rats (Rattus norvegicus) and tufted capuchin monkeys (Sapajus spp.)

Zoratto, Francesca; Oddi, Gabriele; Gori, Emanuele; Micucci, Antonia; Petrillo, Francesca De; Paglieri, Fabio; Adriani, Walter; Laviola, Giovanni; Addessi, Elsa

doi:10.1016/j.bbr.2018.02.033

Cited by 15 publications

(11 citation statements)

References 67 publications

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“…For example, both chimpanzees and bonobos are more riskseeking following a competitive interaction, compared with a neutral or a playful one [62]. Conversely, capuchins become more risk-averse in the presence of a conspecific than when alone [108]. Finally, chimpanzees were more averse to uncertainty stemming from another individual who can choose to reciprocate, versus a non-social probabilistic device [109].…”

Section: (G) Context-dependent Variationmentioning

confidence: 99%

Variation in primate decision-making under uncertainty and the roots of human economic behaviour

Petrillo

Rosati

2021

Phil. Trans. R. Soc. B

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Uncertainty is a ubiquitous component of human economic behaviour, yet people can vary in their preferences for risk across populations, individuals and different points in time. As uncertainty also characterizes many aspects of animal decision-making, comparative research can help evaluate different potential mechanisms that generate this variation, including the role of biological differences or maturational change versus cultural learning, as well as identify human-unique components of economic decision-making. Here, we examine decision-making under risk across non-human primates, our closest relatives. We first review theoretical approaches and current methods for understanding decision-making in animals. We then assess the current evidence for variation in animal preferences between species and populations, between individuals based on personality, sex and age, and finally, between different contexts and individual states. We then use these primate data to evaluate the processes that can shape human decision-making strategies and identify the primate foundations of human economic behaviour. This article is part of the theme issue ‘Existence and prevalence of economic behaviours among non-human primates’.

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Section: (G) Context-dependent Variationmentioning

confidence: 99%

Variation in primate decision-making under uncertainty and the roots of human economic behaviour

Petrillo

Rosati

2021

Phil. Trans. R. Soc. B

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“…the size or quantity of rewards [1][2][3]), outcome delays [4][5][6], choice framing (i.e. whether outcomes are presented as potential gains or losses), the probability of winning or losing a gamble [7][8][9], social context (for example, playful versus competitive scenarios [10] or bystander versus alone scenarios [11]) and how information is obtained (i.e. via learning-by-description versus learning-by-experience [3,12]).…”

Section: Introductionmentioning

confidence: 99%

Reduced risk-seeking in chimpanzees in a zero-outcome game

Keupp

Grueneisen

Ludvig

et al. 2021

Phil. Trans. R. Soc. B

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A key component of economic decisions is the integration of information about reward outcomes and probabilities in selecting between competing options. In many species, risky choice is influenced by the magnitude of available outcomes, probability of success and the possibility of extreme outcomes. Chimpanzees are generally regarded to be risk-seeking. In this study, we examined two aspects of chimpanzees' risk preferences: first, whether setting the value of the non-preferred outcome of a risky option to zero changes chimpanzees’ risk preferences, and second, whether individual risk preferences are stable across two different measures. Across two experiments, we found chimpanzees ( Pan troglodytes , n = 23) as a group to be risk-neutral to risk-avoidant with highly stable individual risk preferences. We discuss how the possibility of going empty-handed might reduce chimpanzees' risk-seeking relative to previous studies. This malleability in risk preferences as a function of experimental parameters and individual differences raises interesting questions about whether it is appropriate or helpful to categorize a species as a whole as risk-seeking or risk-avoidant. This article is part of the theme issue ‘Existence and prevalence of economic behaviours among non-human primates’.

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“…Experimental data were acquired and analyzed through dedicated software (SOF‐815). The test was carried out as previously described 21,31 . Briefly, mice were individually placed in the startle chamber and left undisturbed for 5 minutes for habituation.…”

Section: Methodsmentioning

confidence: 99%

“…The test was carried out as previously described. 21,31 Briefly, mice were individually placed in the startle chamber and left undisturbed for 5 minutes for habituation. On the following day, mice were positioned inside the startle chamber and exposed to a continuous white noise (62 dB) for 5 minutes; following this acclimation, mice were exposed to 10 pulses of 120 dB interspaced by an average inter-trial interval (ITI) of 15 seconds.…”

Section: Pre-pulse Inhibitionmentioning

confidence: 99%

Systemic depletion of histone macroH2A1.1 boosts hippocampal synaptic plasticity and social behavior in mice

et al. 2021

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Social modulation of risky decision-making in rats (Rattus norvegicus) and tufted capuchin monkeys (Sapajus spp.)

Cited by 15 publications

References 67 publications

Variation in primate decision-making under uncertainty and the roots of human economic behaviour

Variation in primate decision-making under uncertainty and the roots of human economic behaviour

Reduced risk-seeking in chimpanzees in a zero-outcome game

Systemic depletion of histone macroH2A1.1 boosts hippocampal synaptic plasticity and social behavior in mice

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