Stone-Tool Use in Wild Monkeys: Implications for the Study of the Body-Plus- Tool Syste

Handheld tools transform the actor's body into a body-plus-tool
system such that the fit of the actor's body, the tool, and the task
demand channel movement in action. In this study, we performed a
biomechanical analysis of percussive actions in wild bearded capuchin
monkeys, Sapajus libidinosus at Fazenda Boa Vista, Brazil, as they
cracked open tucum nuts with anvil-and-hammer tools from the frame
of reference of the body-plus-tool system. The ratio of hammer mass
to body mass--the "body-scaled hammer mass"--influenced the
monkeys' actions with a hammer and their performance in cracking
nuts. Both body mass and hammer mass did not independently
influence the monkeys' actions with a hammer and their performance
in cracking nuts. These findings support the hypothesis that the
properties of the body-plus-tool system are not simply the sum of the
properties of the body and the tool.

Tipo Pubblicazione: 
Articolo
Author or Creator: 
Madhur Mangalam
Dorothy M. Fragaszy
Karl M. Newell
Elisabetta Visalberghi
Publisher: 
L. Erlbaum Associates., [Mahwah, NJ] , Stati Uniti d'America
Source: 
Ecological psychology (Online) 29 (2017): 300–316. doi:10.1080/10407413.2017.1369852
info:cnr-pdr/source/autori:Madhur Mangalam, Dorothy M. Fragaszy, Karl M. Newell & Elisabetta Visalberghi/titolo:Stone-Tool Use in Wild Monkeys: Implications for the Study of the Body-Plus- Tool Syste/doi:10.1080/10407413.2017.1369852/rivista:Ecological ps
Date: 
2017
Resource Identifier: 
http://www.cnr.it/prodotto/i/377464
https://dx.doi.org/10.1080/10407413.2017.1369852
info:doi:10.1080/10407413.2017.1369852
Language: 
Eng