The next talk in the Cognitive Development Center at CEU seminar series will be given by: Thomas Bugnyar, University of Vienna Date: Wednesday, January 26, 5 PM Cognitive Development Center, Hattyú u. 14, 3rd floor Social cognition in ravens: (When) Does smart behaviour-reading become mind-reading? Abstract: Differentiating between individuals with different knowledge states is an important step in child development and has been considered as a hallmark in human evolution. Recently, primates and corvids have been reported to pass knower-guesser tasks, raising the possibility of mental attribution skills in non-human animals. Yet, it has been difficult to distinguish ‘mind-reading’ from behaviour-reading alternatives, specifically the use of behavioural cues and/or the application of associatively learned rules. Here I show that ravens observing an experimenter hiding food are capable of predicting the behaviour of bystanders that had been visible at both, none, or just one of two caching events. Manipulating the competitors’ visual field independently of the view of the test-subject resulted in an instant drop in performance, whereas controls for behavioural cues had no such effect. These findings indicate that ravens not only remember whom they have seen at caching but take into account that the other’s view was blocked. Notably, it does not suffice for the birds to associate specific competitors with specific caches. These results support the idea that certain socio-ecological conditions may select for similar cognitive abilities in distantly related species and that some birds have evolved analogous precursors to a human Theory-of-Mind. _______________________________________________ Subscribe by sending an empty mail to seminars-subscribe(a)cdc.ceu.hu Unsubscribe by sending an empty mail to seminars-unsubscribe(a)cdc.ceu.hu