Decrease in nasal temperature of rhesus monkeys (Macaca mulatta) in negative emotional state

We established an infrared thermographic system for the detection of emotion-related temperature changes in rhesus monkeys (Macaca mulatta). We continuously measured temperatures of various facial regions of four rhesus monkeys during the presentation of a potentially ‘threatening’ person, i.e., a person in a laboratory coat with a catching net, who entered the experimental room and […]

Attention to emotional scenes including whole-body expressions in chimpanzees (Pan troglodytes)

Real-life situations provide rich sets of cues that viewers evaluate in terms of their emotional significance. In this study, chimpanzees (Pan troglodytes) viewed a movie depicting naturalistic scenes involving the whole-body expressions of conspecifics to examine how nonhuman primates perceived the combination of these cues and how each cue contributed to the overall perception. Viewing […]

What we can measure, we can manage: The importance of using robust welfare indicators in Equitation Science

Ever since the phrase, ‘the happy athlete’ was introduced into the FEI rules for dressage (Article 401.1) there have been discussions about what this actually means and whether it is possible to recognize and reward positive emotions in working horses. For those interested in the study of equine behaviour, the use of such subjective terms […]