Now showing items 1-10 of 37
(University of St Andrews, 2018-06-29) - Thesis
Great apes' risk-taking strategies in a decision making task
(2011-12-21) - Journal article
We investigate decision-making behaviour in all four non-human great ape species. Apes chose between a safe and a risky option across trials of varying expected values. All species chose the safe option more often with ...
Inferences about food location in three cercopithecine species : an insight into the socioecological cognition of primates
(2015-07) - Journal article
Many animal species use a variety of cognitive strategies to locate food resources. One strategy is to make inferences by exclusion, i.e., perceiving the absence of reward as a cue that another location should be investigated. ...
Chimpanzees’ understanding of social leverage
(2018-12-12) - Journal article
Social primates can influence others through the control of resources. For instance, dominant male chimpanzees might allow subordinates access to mate with females in exchange for social support. However, little is known ...
Social manipulation in nonhuman primates: cognitive and motivational determinants
(2017-11) - Journal item
Social interactions are the result of individuals’ cooperative and competitive tendencies expressed over an extended period of time. Although social manipulation, i.e., using another individual to achieve one’s own goals, ...
Eye tracking uncovered great apes' ability to anticipate that other individuals will act according to false beliefs
(2017) - Journal article
Using a novel eye-tracking test, we recently showed that great apes anticipate that other individuals will act according to false beliefs. This finding suggests that, like humans, great apes understand others' false beliefs, ...
Thirty years of great ape gestures
(2018-02-21) - Journal article
We and our colleagues have been doing studies of great ape gestural communication for more than 30 years. Here we attempt to spell out what we have learned. Some aspects of the process have been reliably established by ...
Chimpanzees, bonobos and children successfully coordinate in conflict situations
(2017-06-14) - Journal article
Social animals need to coordinate with others to reap the benefits of group-living even when individuals' interests are misaligned. We compare how chimpanzees, bonobos and children coordinate their actions with a conspecific ...
Do Chimpanzees Use Weight to Select Hammer Tools?
(2012-07-18) - Journal article
The extent to which tool-using animals take into account relevant task parameters is poorly understood. Nut cracking is one of the most complex forms of tool use, the choice of an adequate hammer being a critical aspect ...
Sequential Tool Use in Great Apes
(2012-12-26) - Journal article
Sequential tool use is defined as using a tool to obtain another non-food object which subsequently itself will serve as a tool to act upon a further ( sub) goal. Previous studies have shown that birds and great apes succeed ...