The term "recursion" is used in at least four distinct theoretical senses within cognitive science. Some of these senses in turn relate to the different levels of analysis described by David Marr some 20 years ago; namely, the underlying competence capacity (the "computational" level), the performance operations used in real-time processing (the…

Three eye-tracking experiments investigated how phonological reductions (e.g., "puter" for "computer") modulate phonological competition. Participants listened to sentences extracted from a spontaneous speech corpus and saw four printed words: a target (e.g., "computer"), a competitor similar to the canonical form (e.g., "companion"), one similar…

Hungarian is a language with morphological case marking and relatively free word order. These typological characteristics make it a good ground for testing the crosslinguistic validity of theories on processing sentences with relative clauses. Our study focused on effects of structural factors and processing capacity. We tested 43 typically…

Previous evidence suggests that when speakers produce sentences from memory or as picture descriptions, their choices of sentence structure are influenced by how easy it is to retrieve sentence material (accessibility). Three experiments assessed whether this pattern holds in naturalistic, interactive dialogue. Pairs of speakers took turns asking…

Two-year-olds assign appropriate interpretations to verbs presented in two English transitivity alternations, the causal and unspecified-object alternations (Naigles, 1996). Here we explored how they might do so. Causal and unspecified-object verbs are syntactically similar. They can be either transitive or intransitive, but differ in the semantic…

Eye fixation durations during normal reading correlate with processing difficulty, but the specific cognitive mechanisms reflected in these measures are not well understood. This study finds support in German readers' eye fixations for two distinct difficulty metrics: surprisal, which reflects the change in probabilities across syntactic analyses…

An empirical study is presented that tests a novel prediction generated by the Metaphor-by-Pattern-Completion (MPC) connectionist model of metaphor comprehension (Thomas & Mareschal, 2001). The MPC model predicts a developmental progression in the way that children process metaphors, from a preference for basic-level metaphors to a preference for…

At the one-word stage children use gesture to "supplement" their speech ("eat" + point at cookie), and the onset of such supplementary gesture-speech combinations predicts the onset of two-word speech ("eat cookie"). Gesture thus signals a child's readiness to produce two-word constructions. The question we ask here…

This study provides an account of the distributional information and the production rates in a particularly rich corpus of German child and adult language. Three structural domains are analysed: the parts-of-speech distribution for a coded corpus of circa one million words as well as the internal constituency of 300,000 noun phrases and almost…

Using reading times and event-related brain potentials (ERPs), we investigated the processing of Japanese subject and object relative clauses (SRs/ORs). Previous research on English relative clauses shows that ORs take longer to read (King & Just, 1991) and elicit anterior negativity between fillers and gaps (King & Kutas, 1995), which is…

In psycholinguistic research, there is still considerable debate about whether the type or token count of the frequency of a particular unit of language better predicts word recognition performance. The present study extends this distinction of type and token measures to the investigation of possible causes underlying syllable frequency effects.…

Demonstrates how the definition of "simple attachment" and "tree lowering," operations related to the grammatical composition operations of "substitution" and "adjunction" in the Tree Adjoining Grammar formalism, yields a parser more constrained than previous description theory based models. The article…

Recent investigations of filler-gap dependencies in sentence processing have assumed that the parser must compute an antecedent-trace relationship in which the trace site is identical to the canonical position of the moved phrase. Pickering and Barry's challenge to this view is refuted and a "direct association hypothesis" is suggested.…

Pickering and Barry's recent argument against the existence of empty categories (ECs) in human sentence processing is disputed. It is argued here that ECs may still play a linking role between thematic role assigners and wh-phrases. One possible parsing algorithm is given that accounts for Pickering and Barry's data. (28 references) (Author/LB)

Papers by Gorrell and by Gibson and Hickok question Pickering and Barry's (PB) arguments against empty categories in sentence processing. This reply disputes Gorrell's claims that PB's interpretation of the data is inadequate and, in agreement with Gibson and Hickok, reinforces the arguments that the gap location is irrelevant to the formation of…