Chimpanzees know what others know, but not what they believe

There is currently much controversy about which, if any, mental states chimpanzees and other nonhuman primates understand. In the current two studies we tested both chimpanzees’ and human children’s understanding of both knowledge-ignorance and false belief - in the same experimental paradigm involving competition with a conspecific. We found that whereas 6-year-old children understood both of these mental states, chimpanzees understood knowledge-ignorance but not false belief. After ruling out various alternative explanations of these and related findings, we conclude that in at least some situations chimpanzees know what others know. Possible explanations for their failure in the highly similar false belief task are discussed.     

Elephant psychology: What we know and what we would like to know

Although elephants are well-known and one of the most popular species among people, their behavior and cognitive abilities have not been studied very extensively. But recently, more and more researchers are becoming interested in studying their cognition, particularly their general intelligence, including causal reasoning and mirror self recognition, memory, and numerical cognition. Although genetically elephants are more closely related to the small-brained aardvarks and manatees than to primates, they hold enormous potential in their cognitive skills. Also, studying their cognition is important from the point of view of animal welfare in captivity.     

Memory processes in elderly eyewitnesses: What we know and what we don't know

Research is reviewed on the memory abilities of elderly eyewitnesses. Two major issues are addressed: First, how credible are elderly witnesses? Second, how accurate are they? Despite negative stereotypes regarding elderly eyewitnesses, they do not necessarily lack credibility at trial. In terms of their memory performance, older witnesses are as accurate as young adults in many respects, but they are particularly vulnerable to misleading information that is presented after the witnessed event. Furthermore, their performance varies depending on the type of information that is sought and the manner in which their memory is assessed. Recommendations are made for improving the reliability of testimony that is offered by elderly eyewitnesses.     

What do mind readers know and what do we know about mind readers?

In this commentary, I raise various questions about Kim and Harris's fascinating findings. I ask what kind of knowledge children expect telepathic individuals to have, who children might consider to be good mind readers, why children value telepathy, and how puzzled children are by telepathy. I suggest potential ways to address some of these questions and end by reiterating the importance of probing individual differences in scepticism and credulity.     

Rational emotive behavior therapy research: What we know and what we need to know

Rational emotive behavior therapy (REBT) has achieved positive results in quantitative reviews of treatment outcome studies. In part because of methodological limitations of these studies, however, the generalizability of their favorable results to routine clinical practice is unknown. Also unknown are the clinical significance of outcomes achieved by REBT, the contribution made by its distinctive and specialized procedures, and the types of patients for whom REBT is particularly useful. Recommendations are provided for refining our knowledge of the effectiveness of REBT.     

You don't know me, but I know you: the illusion of asymmetric insight

People, it is hypothesized, show an asymmetry in assessing their own interpersonal and intrapersonal knowledge relative to that of their peers. Six studies suggested that people perceive their knowledge of their peers to surpass their peers' knowledge of them. Several of the studies explored sources of this perceived asymmetry, especially the conviction that while observable behaviors (e.g., interpersonal revelations or idiosyncratic word completions) are more revealing of others than self, private thoughts and feelings are more revealing of self than others. Study 2 also found that college roommates believe they know themselves better than their peers know themselves. Study 6 showed that group members display a similar bias-they believe their groups know and understand relevant out-groups better than vice versa. The relevance of such illusions of asymmetric insight for interpersonal interaction and our understanding of "naive realism" is discussed.     

'It's who you know, not what you know!': Penetrating the credentialling ideology

The kinds of messages teachers give students regarding the value of credentials in the job-getting package during a period of high youth unemployment are explored. The response made by students to the credentialling ideology promoted in schools, and their construction of the job-getting formula, are also described. The validity of the two versions of job-getting strategies is considered in the light of evidence provided by a number of empirical research projects. The superiority of student knowledge in this area is used to present a case for a critical and democratic education which appropriates and legitimises the student voice.     

Second-personal theodicy: coming to know why God permits suffering by coming to know God himself

International Journal for Philosophy of Religion - The popularity of theodicy over the past several decades has given rise to a countermovement, “anti-theodicy”, which admonishes...