Staff Profile
Dr Francesca De Petrillo
Lecturer in Psychology
My research investigates the evolutionary and developmental origins of cognition and behaviour, with a particular focus on how individuals acquire and use information from the physical and social world to make decisions. I am interested in how variation in cognitive abilities and decision-making strategies relates to differences in life history, ecology, social structure, and developmental experience. I address these questions using comparative approaches across human and non-human primates. My research examines decision-making, executive control, and risk-taking in different primate populations, including captive capuchin monkeys, free-ranging macaques, and several species of lemurs. I am particularly interested in understanding how cognitive and behavioural variation observed in experimental settings relates to the challenges animals face in their natural social and ecological environments.
A second major strand of my research focuses on the evolutionary and developmental origins of moral behaviour. I investigate behaviours such as cooperation, punishment, fairness, and responses to social norm violations, asking which components of human morality may have deeper evolutionary roots and how they emerge during childhood. This work combines comparative research with non-human primates, developmental studies with children, and cross-cultural research examining punishment and social decision-making across human societies.
I also study the evolutionary foundations of economic behaviour, including the origins of monetary systems and whether capacities underlying the use and categorisation of money can be traced to non-human primates, through studies of exchange behaviour in brown tufted capuchin monkeys.
Alongside this work, I co-lead Science Adventures, a community-embedded developmental research programme that brings families, schools, and researchers together. Science Adventures aims to create opportunities for children and families to engage directly with scientific research and develop an interest in science from an early age, while also making developmental research more accessible and increasing the diversity and representativeness of the families who take part in psychological research.
I am the module leader for PSY3057: Decision Making and Cooperation: understanding our choices, and I contribute to PSY2020: Introduction to comparative cognition & behaviour.
I am the Strand Leader for the Psychology PARTNERS Summer School.
I supervise students for the BSc Psychology and MRes in Animal Behaviour and Human Evolution programmes. I am also open to supervising PhD students. If you'd like to discuss potential supervision, don't hesitate to contact me.
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Articles
- Garfield ZH, Fiorio G, Kaneko EA, Iben El Rhazi S, De Petrillo F, Molho C. Third-party punishment is common across human societies but varies with socioecology. 2026. Submitted.
- Cantwell A, Nair P, De Petrillo F, Rosati AG. Temperament and cognitive flexibility across lemur species. Animal Behaviour 2025, 229.
- Roome HE, De Petrillo F, Price E. The Science Adventure initiative: challenges and solutions in community engagement with developmental science. PsyArXiv 2024. Submitted.
- Molho C, De Petrillo F, Garfield ZH, Slewe S. Cross-societal variation in norm enforcement systems. Philosophical Transaction of the Royal Society B 2024, 379(1897), 20230034.
- Ciacci F, Mayerhoff S, De Petrillo F, Gastaldi S, Brosnan SF, Addessi E. State-dependent risky choices in primates: Variation in energy budget does not affect tufted capuchin monkeys' (Sapajus spp.) risky choices. American Journal of Primatology 2023, 85(10), e23542.
- De Petrillo F, Rossi F, Gastaldi S, Addessi E. Do tufted capuchin monkeys, Sapajus spp., experience regret in decision making under risk?. Animal Behaviour 2023, 202, 73-86.
- De Petrillo F, Nair P, Cantwell A, Rosati AG. The Evolution of Cognitive Control in Lemurs. Psychological Science 2022, 33(9), 1408-1422.
- De Petrillo F, Bettle R, Rosati AG. Insights from matched species comparisons for understanding cognition in the wild. Current Opinion in Behavioral Sciences 2022, 45, 101134.
- De Petrillo F, Rosati AG. Variation in primate decision-making under uncertainty and the roots of human economic behaviour. Philosophical Transactions of the Royal Society B 2021, 376(1819).
- De Petrillo F, Rosati AG. Logical inferences from visual and auditory information in ruffed lemurs and sifakas. Animal Behaviour 2020, 164, 193-204.
- De Petrillo F, Paoletti M, Bellagamba F, Manzi G, Paglieri F, Addessi E. Contextual factors modulate risk preferences in adult humans. Behavioural Processes 2020, 176, 104137.
- De Petrillo F, Rosati AG. Rhesus macaques use probabilities to predict future events. Evolution and Human Behavior 2019, 40(5), 436-446.
- De Petrillo F, Caroli M, Gori E, Micucci A, Gastaldi S, Bourgeois-Gironde S, Addessi E. Evolutionary origins of money categorization and exchange: an experimental investigation in tufted capuchin monkeys (Sapajus spp.). Animal Cognition 2019, 22, 169-186.
- De Petrillo F, Rosati AG. Ecological rationality: convergent decision-making in apes and capuchins. Behavioural Processes 2019, 164, 201-213.
- Zoratto F, Oddi G, Gori E, Micucci A, De Petrillo F, Paglieri F, Adriani W, Laviola G, Addessi E. Social modulation of risky decision-making in rats (Rattus norvegicus) and tufted capuchin monkeys (Sapajus spp.). Behavioural Brain Research 2018, 347, 37-48.
- De Petrillo F, Tonachella G, Addessi E. Emotional correlates of probabilistic decision making in tufted capuchin monkeys (Sapajus spp.). Animal Behaviour 2017, 129, 249-256.
- De Petrillo F, Gori E, Micucci A, Ponsi G, Paglieri F, Addessi E. When is it worth waiting for? Food quantity, but not food quality, affects delay tolerance in tufted capuchin monkeys. Animal Cognition 2015, 18, 1019–1029.
- De Petrillo F, Micucci A, Gori E, Truppa V, Ariely D, Addessi E. Self-control depletion in tufted capuchin monkeys (Sapajus spp.): does delay of gratification rely on a limited resource?. Frontiers in Psychology 2015, 6, 1193.
- De Petrillo F, Ventricelli M, Ponsi G, Addessi E. Do tufted capuchin monkeys play the odds? Flexible risk preferences in Sapajus spp. Animal Cognition 2015, 18, 119–130.