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Anticipating future actions: Motor planning improves with age in wild bearded capuchin monkeys (Sapajus libidinosus). 2021

Valentina Truppa, and Gloria Sabbatini, and Patricia Izar, and Dorothy M Fragaszy, and Elisabetta Visalberghi
Institute of Cognitive Sciences and Technologies, National Research Council (CNR), Rome, Italy.

Self-directed object manipulation tasks illuminate development of motor planning. Grasping strategies that lead to good object control to perform the following action(s) reveal second-order motor planning. Motor planning for efficient grips develops slowly in children. Age-related differences in other primates have been poorly investigated. Here, we investigated anticipatory motor planning of infant, juvenile and adult wild capuchin monkeys grasping a horizontally positioned stick baited to the left or right side (a version of the elevated spoon task). We recorded the grasps capuchins used to bring the baited end of the stick to the mouth. The percentage of efficient radial grips positively correlated with age and adults used efficient grips significantly more frequently than infants. Adult wild capuchins' use of radial grips was higher than that reported for adult captive capuchins in similar tasks, suggesting that experience throughout life may influence motor anticipation. Self-directed object manipulation tasks will be useful to compare this aspect of cognition across primates. A video abstract of this article can be viewed at https://youtu.be/a1Zbr_AQkb8.

UI MeSH Term Description Entries
D002428 Cebus A genus of the family CEBIDAE, subfamily CEBINAE, consisting of gracile or untufted capuchin species. Tufted capuchins belong to genus SAPAJUS. Members include C. capucinus, C. nigrivultatus, and C. albifrons. Cebus inhabits the forests of Central and South Americas. Cebu,Gracile Capuchins,Monkey, Capuchin,Monkey, Ring-Tail,Monkey, Ringtail,Monkey, Ringtailed,Untufted Capuchins,White-Fronted Capuchin,Monkey, Ring-Tailed,Capuchin Monkey,Capuchin Monkeys,Capuchin, Gracile,Capuchin, Untufted,Capuchin, White-Fronted,Gracile Capuchin,Monkey, Ring Tail,Monkey, Ring Tailed,Ring-Tail Monkey,Ring-Tail Monkeys,Ring-Tailed Monkey,Ring-Tailed Monkeys,Ringtail Monkey,Ringtail Monkeys,Ringtailed Monkey,Ringtailed Monkeys,Untufted Capuchin,White Fronted Capuchin,White-Fronted Capuchins
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000882 Haplorhini A suborder of PRIMATES consisting of six families: CEBIDAE (some New World monkeys), ATELIDAE (some New World monkeys), CERCOPITHECIDAE (Old World monkeys), HYLOBATIDAE (gibbons and siamangs), CALLITRICHINAE (marmosets and tamarins), and HOMINIDAE (humans and great apes). Anthropoidea,Monkeys,Anthropoids,Monkey
D016646 Cebinae A subfamily of New World monkeys in the family CEBIDAE. They inhabit the forests of South and Central America and comprise members of the genus CEBUS.
D018737 Hand Strength Force exerted when gripping or grasping. Grasp,Grip,Grip Strength,Hand Grip Strength,Grasps,Grip Strength, Hand,Grips,Strength, Grip,Strength, Hand,Strength, Hand Grip

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