Daphna Heller

The role of perspective in identifying domains of reference

We used the contrastive expectation associated with scalar adjectives to examine whether listeners are sensitive to the distinction between common and privileged information during real-time reference resolution. Our results show that listeners used this distinction to narrow the set of potential referents to objects with contrasts in common ground from the earliest moments. These results extend previous evidence that ground information influences real-time language processing by showing that the distinction between common and privileged information is used without being triggered by unusual circumstances.

To Name or to Describe: Shared Knowledge Affects Referential Form

The notion of common ground is important for the production of referring expressions: In order for a referring expression to be felicitous, it has to be based on shared information. But determining what information is shared and what information is privileged may require gathering information from multiple sources, and constantly coordinating and updating them, which might be computationally too intensive to affect the earliest moments of production. Previous work has found that speakers produce overinformative referring expressions, which include privileged names, violating Grices Maxims, and concluded that this is because they do not mark the distinction between shared and privileged information. We demonstrate that speakers are in fact quite effective in marking this distinction in the form of their utterances. Nonetheless, under certain circumstances, speakers choose to overspecify privileged names.

On The Relation of Connectivity and Specificational Pseudoclefts

From Higgins (1973) to Iatridou and Varlokosta (1998), connectivity has been considered in the literature to be a defining characteristic of specificational pseudoclefts. This paper argues against this view based on an analysis of specificational pseudoclefts in Hebrew. Pseudoclefts in Hebrew are interesting in two ways. First, predicational and specificational pseudoclefts are distinguished lexically in the choice of the copula. Second, specificational pseudoclefts fall into two classes, each exhibiting a different set of connectivity effects. The connectivity pattern in Hebrew is accounted for following Jacobson (1994) and Sharvit (1999), who assume that connectivity effects are independent of each other and derive them as a by-product of semantic equation. It is shown that this pattern cannot be obtained using any single grammatical operation, such as reconstruction or coping, which would necessarily derive all connectivity effects at once.

Perspective-taking behavior as the probabilistic weighing of multiple domains.

Our starting point is the apparently-contradictory results in the psycholinguistic literature regarding whether, when interpreting a definite referring expressions, listeners process relative to the common ground from the earliest moments of processing. We propose that referring expressions are not interpreted relative solely to the common ground or solely to ones Private (or egocentric) knowledge, but rather reflect the simultaneous integration of the two perspectives. We implement this proposal in a Bayesian model of reference resolution, focusing on the models predictions for two prior studies: Keysar, Barr, Balin, and Brauner (2000) and Heller, Grodner and Tanenhaus (2008). We test the models predictions in a visual-world eye-tracking experiment, demonstrating that the original results cannot simply be attributed to different perspective-taking strategies, and showing how they can arise from the same perspective-taking behavior.