Bart Geurts

In the last 30 years, the key issue in developmental Theory of Mind has been if and when children are capable of representing false beliefs. Moving away from this research question, the aim of this study was to investigate the role of attentional processes in false-belief tasks. We focused on the design of the test phase and investigated two factors that may be critical for 3-year-old children’s success: the form of the wh-question and the salience of the target object. The results of two experiments confirmed that 3-year olds are able to explicitly choose the correct answer in a false-belief task provided that they are allowed to focus on the protagonist throughout the task. The salience of the target object, however, was a critical factor in the design of the test phase, as increasing it had a negative effect on children’s performance. These results suggest that the experimental record of the last 30 years may be skewed since standard false-belief tasks do not control for the relative salience of the wrong response, potentially hindering the performance of children under 4. We conclude that a careful investigation of performance factors in false-belief tasks has the potential to reveal deep insights into the development of Theory of Mind skills, even if not directly focused on children’s representation of beliefs.

It appears that in mixed quotations like the following, the quoted expression is used and mentioned at the same time: (1) George says Tony is his ``bestest friend''. Most theories seek to account for this observation by assuming that mixed quotations operate at two levels of content at once. In contradistinction to such two-dimensional theories, we propose that quotation involves just a single level of content. Quotation always produces a change in meaning of the quoted expression, and if the quotation is mixed the shift is, to a first approximation at least, from '...' to ``what x calls '...''', where x is a variable whose value is determined by the context. We argue that quotation is generally context dependent in various ways, and that some of these ways are presuppositional in nature; we present a detailed analysis of the presuppositions in question

There is a wealth of experimental data showing that the way a problem is framed may have an effect on people's choices and decisions. Based on a semantic analysis of evaluative expressions like ‘good’, I propose a new explanation of such framing effects. The key idea is that our choices and decisions reveal a counterfactual systematicity: they carry information about the choices and decisions we would have made if the facts had been otherwise. It is these counterfactual alternatives that may diverge between otherwise equivalent versions of the same task, and thus explain the effects of framing

In this volume, Geurts takes discourse representation theory (DRT), and turns it into a unified account of anaphora and presupposition, which he applies not only to the standard problem cases but also to the interpretation of modal expressions, attitude reports, and proper names. The resulting theory, for all its simplicity, is without doubt the most comprehensive of its kind to date. The central idea underlying Geurts' 'binding theory' of presupposition is that anaphora is just a special case of presupposition projection. But this is only one of the ways in which the concept of presupposition is taken beyond its traditional limits. Geurts shows, furthermore, that presupposition projection is crucially involved in several phenomena that are not usually viewed in presuppositional terms, such as modal subordination, de re readings of attitude reports, and rigid designation. While making his case for DRT and the binding theory, Geurts also presents an incisive analysis of what is probably still the most influential account of presupposition, viz. the satisfaction theory, demonstrating that there are fundamental problems not only with this theory but with the very framework in which it is couched.

The information conveyed by any utterance is a motley ensemble. Utterances carry content about the world as it is according to the speaker, but also about speakers’ attitudes, the way they speak, what has been said before, and so on. There are many kinds of information that are conveyed by way of language, and differences in kind correlate with differences in status. Presupposed information exhibits a distinctive projection behaviour; conversational implicatures are cancellable in a way that asserted information is not; a pronoun’s gender may help to determine a referent, but is otherwise truth-conditionally inert; and so on.

Categorisation models of metaphor interpretation are based on the premiss that categorisation statements and comparison statements are fundamentally different types of assertion. Against this assumption, we argue that the difference is merely a quantitative one: ‘x is a y’ unilaterally entails ‘x is like a y’, and therefore the latter is merely weaker than the former. Moreover, if ‘x is like a y’ licenses the inference that x is not a y, then that inference is a scalar implicature. We defend these claims partly on theoretical grounds and partly on the basis of experimental evidence. A suite of experiments indicates both that ‘x is a y’ unilaterally entails that x is like a y, and that in several respects the non-y inference behaves exactly as one should expect from a scalar implicature. We discuss the implications of our view of categorisation and comparison statements for categorisation models of metaphor interpretation.