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AI opens new era in cognitive studies of wild primates
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Researchers have developed an artificial intelligence system that brings lab-style cognitive testing to wild primates for the first time at scale. The system, called CapuchinAI, uses facial recognition and a touchscreen to automatically administer learning tasks to capuchin monkeys in their natural habitat. A proof-of-concept study appears in the American Journal of Primatology, created by scientists at Emory University and the Georgia Institute of Technology.
Primate cognition is rarely studied in the wild because unpredictable conditions make controlled experiments difficult. Most knowledge comes from captive animals in laboratories, where social and ecological contexts are absent. The researchers say CapuchinAI offers a scalable, systematic way to evaluate and monitor wild primatesâ cognitive abilities.
The system integrates a compact, battery-powered computer into a field platform. It identifies an approaching monkey with 97% accuracy, presents an individualized task, and automatically delivers food rewards for correct responses. Field tests in Costa Ricaâs Taboga Forest Reserve showed wild capuchins quickly habituated to the system and learned touchscreen-reward associations.
This breakthrough enables researchers to quantify cognitive differences among known individuals in natural environments. Mapping performance across tasks can reveal how environmental variation shapes cognition. The open-source paper includes coding guides and a blueprint for building a low-cost platform, allowing other scientists to adapt the method.
âThe primate brain didnât evolve in a lab, it evolved in complex, competitive environments,â said Marcela BenĂtez, senior author and Emory anthropology professor. First author Federico SĂĄnchez Vargas, an Emory PhD student, connected the project to the legacy of the late Frans de Waal, who pioneered animal cognition studies and treated primates as individuals. SĂĄnchez Vargas noted the AI method âgets into the minds behind the personalitiesâ by combining field observations with automated cognitive testing.
BenĂtezâs research combines anthropology, psychology, and evolutionary biology. She co-directs the Capuchinos de Taboga project, launched in 2017 with a Costa Rican university. The authors hope their AI system will eventually be used to generate cognitive data for many wild primate species across diverse environments, opening a new era in understanding how natural life experiences shape intelligence.
