Change blindness is the striking failure to see large changes that normally would be noticed easily. Over the past decade this phenomenon has greatly contributed to our understanding of attention, perception, and even consciousness. The surprising extent of change blindness explains its broad appeal, but its counterintuitive nature has also engendered confusions about the kinds of inferences that legitimately follow from it. Here we discuss the legitimate and the erroneous inferences that have been drawn, and offer a set of requirements (...) to help separate them. In doing so, we clarify the genuine contributions of change blindness research to our understanding of visual perception and awareness, and provide a glimpse of some ways in which change blindness might shape future research. (shrink)

An individual has a theory of mind if he imputes mental states to himself and others. A system of inferences of this kind is properly viewed as a theory because such states are not directly observable, and the system can be used to make predictions about the behavior of others. As to the mental states the chimpanzee may infer, consider those inferred by our own species, for example, purpose or intention, as well as knowledge, belief, thinking, doubt, guessing, pretending, liking, (...) and so forth. To determine whether or not the chimpanzee infers states of this kind, we showed an adult chimpanzee a series of videotaped scenes of a human actor struggling with a variety of problems. Some problems were simple, involving inaccessible food as in the original Kohler problems; others were more complex, involving an actor unable to extricate himself from a locked cage, shivering because of a malfunctioning heater, or unable to play a phonograph because it was unplugged. With each videotape the chimpanzee was given several photographs, one a solution to the problem, such as a stick for the inaccessible bananas, a key for the locked up actor, a lit wick for the malfunctioning heater. The chimpanzee's consistent choice of the correct photographs can be understood by assuming that the animal recognized the videotape as representing a problem, understood the actor's purpose, and chose alternatives compatible with that purpose. (shrink)

A young scientist and mathematician explores the mystery and complexity of human thought processes from an interdisciplinary point of view.

In the first part of this paper I characterize a minimal form of self-consciousness, namely pre-reflective self-consciousness. It is a constant structural feature of conscious experience, and corresponds to the consciousness of the self-as-subject that is not taken as an intentional object. In the second part, I argue that contemporary cognitive neuroscience has by and large missed this fundamental form of self-consciousness in its investigation of various forms of self-experience. In the third part, I exemplify how the notion of pre-reflective (...) self-awareness can be of relevance for empirical research. In particular, I propose to interpret processes of sensorimotor integration in light of the phenomenological approach that allows the definition of pre-reflective self-consciousness. (shrink)

Analyzes the nature of international disagreements and conflict resolution in terms of game theory and non-zero-sum games.

This revised edition includes a new Preface outlining developments in Relevance Theory since 1986, discussing the more serious criticisms of the theory, and ...

Twenty years ago, Baron-Cohen and colleagues argued that autistic performance on false belief tests was explained by a deficit in metarepresentation. Subsequent research moved from the view that the mind has a domain-general capacity for metarepresentation to the view that the mind has a domain-specific mechanism for metarepresentation of mental states per se, i.e., the theory of mind mechanism (ToMM). We argue that 20 years of data collection in lesion patients and children with autism supports a more parsimonious view closer (...) to that of the 1985 paper. Lower-level domain-specific mechanisms - e.g., tracking gaze, joint attention - interacting with higher-level domain-general mechanisms for metarepresentation, recursion, and executive function can account for observed patterns of deficits in both autism and neurological patients. The performance of children with autism or orbitofrontal patients on ToM tests can be explained more parsimoniously by their deficits in lower-level domain-specific mechanisms for processing social information. Without proper inputs, the intact capacity for metarepresentation by itself cannot make correct ToM inferences. Children with autism have no impairment in false photograph tests because their metarepresentational capacity is intact and they have no impairment in inputs required for such tests. TPJ patients have equivalent deficits on ToM and non-ToM metarepresentational tasks, consistent with a failure in domain-general processing. If deficits on ToM tasks can result from deficits in low-level input systems or in higher-level domain-general capacities, postulating a separate ToM mechanism may have been an unnecessary theoretical move. (shrink)