And Study has investigated the infectious yaw in adult chimpanzees (Pan Troglodytes) In the presence of a non -biological humanoid agent. Loose Chimpanzees They observed an Android who appealed specific facial expressions, including yawning and open mouths.
Loose Results showed that chimpanzees for adults showed yawn spread, with a graduate response: the highest infection took place when the Android It showed a completely open mouth (yawning condition), a reduced response when the mouth was partially open (open mouth condition) and no infection when the Android mouth was closed (final condition).
In addition, The chimpanzees participated in behaviors associated with sleepinessHow to put together bed materials, build nests and go to bed while looking at the yawning Android.
Study chimpanzees
Loose Chimpanzees (Pan Troglodytes) They can ‘become infected’ of the yaws of an Android who mimics human facial expressions, According to a new study at the University of London City St George’s published in the Scientific Reports Magazine.
The study He has shown that chimpanzees yawn and lie in response to the yaws of an AndroidSuggesting that this gesture can work as a signal to rest instead of simply activating an automatic reaction. According to the authors, it is the first time that it is shown that a yawning can also be contagious, even if it comes from a lifeless model.
The yawn contagiouswhere you can see another animal causes a yawning reaction in an individualis mainly observed with mammals and some fish. However, the evolutionary origin of Geeuw is not yet known and why it is infected, even with different species.
To do this study, the Honor Ramiro Joly-Mascheroni and Professor Beatriz Calvo-Merino, both from the city of St George’s, together with researchers from the University of Girona, used an Android head to simulate Facial expressions and evaluate the reactions of fourteen chimpanzees between 10 and 33 years of the Mona Primate Sanctuary Foundation in Spain.
The Android -Kop produced facial expressions – including yawning – with a duration of 10 seconds any facial movement. The Chimpanzees showed contagious yaws in response to the ‘yawning’ of the Android. Loose Chimpanzees Adults gradually responded depending on the different facial expressions of the Android.
Infection of the yawning of an Android
He Paded Van Geeuw was larger when the Android showed its mouth completely open (“yawning”), small when the mouth was partially open (“speechless”) And void when the mouth of the Android was closed. For Joly-Mascheroni, these findings show that “show that Chimpanzees They show yawning when a non -biologically lifeless agent, a humanoid Android, who seems to be yawning »activating it.
«Despite its primary functions, difficult to define –We still don’t know exactly why we yawn, let alone why it is contagious-, Geeuw can continue to have a very old non -verbal communicative function from an evolutionary point of view, and its infectious appearance can help us discover more about how people and animals have developed forms of communication and social interaction ».
Discover The yawning reactions of the chimpanzees to an artificial agent help us understand the mechanism of social cognition and interactions that go beyond human beings. This interdisciplinary study improves cooperation between disciplines such as psychology, robotics and zoology, adds Calvo-Merino.
Researchers believe that The mechanisms underlying this reaction still require more research to clarify or other actions performed by robots or artificial agents are contagious to animals And to what extent they look like the reaction in people. EFE / ECOTICIA.COM