Provides evidence that sentence processing does not make use of grammatical theories with empty categories. A linguistic account is provided of unbounded dependencies that do not use empty categories and can serve as the basis of a processing model. It is concluded that empty categories are not psychologically real. (28 references) (JL)

Discusses two naming experiments in which it was shown that response times for morphologically structured pseudowords are faster than those for orthographically matched controls. Argues that the results, which are consistent with those obtained in lexical decision tasks with morphologically structured pseudowords, provide support for compositional…

Reviews recent research on English place assimilation (e.g., "sweet" articulated as "sweep" in the environment "sweet boy"), evaluating an account of variation in terms of abstract, underspecified lexical form representations. A hybrid account is proposed where abstract lexical representations can be contacted directly by varying phonetic forms.…

Describes a connectionist model accounting for newborn infants' ability to finely discriminate almost all human speech contrasts and the fact that their phonemic category boundaries are identical, even for phonemes outside their target language. The model posits an innately guided learning in which an artificial neural network is stored in a…

Reports language acquisition experiments with simple recurrent networks solving phoneme prediction in continuous phonemic data, which suggests the network output could function as a source for syllable boundary detection. The phoneme prediction network simulates the necessary "bootstrap" to discover syllabic segmentation in unsegmented…

Describes language acquisition processes occurring in a community of interacting agents, in which coordination of joint attention leads to the development of structures, internal and external, that support organized behavior. It is argued that the simulation model demonstrates the plausibility of propositions arising from such processes, and that…

Summarizes the results of Finnish studies dealing with single-word experiments with aphasics as well as lexical decisions and eye-movement registration tests performed on normals. It then proposes a processing model for Finnish nouns, Stem Allomorph/Inflectional Decomposition (SAID), which predicts that both inflected and productive derived forms…

Presents a distributed connectionist model of the perception of spoken words, employing speech representation that combines lexical and abstract phonological information, with lexical access as a direct mapping on this distributed representation. The article examines the integration of partial cues to phonological identity, showing that the model…

Describes a connectionist model, using a simple recurrent network trained on a phoneme prediction task, that accounts for the child's ability to identify word boundaries. The model shows that aspects of linguistic structure that are not overtly marked in the input can be derived by efficiently combining multiple probabilistic cues. (Author/MSE)

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…

Reviews some history of how lexical representations have acquired an important role in sentence processing research. Discusses relevant issues, including the importance of timecourse information in theorizing; the importance of frequency information in theories of sentence processing; and the question of the grain of frequency information. (42…

Developmental aspects of spelling-to-sound mapping for English monosyllabic words are investigated with a simple two-layer network model using a simple, general learning rule. The model is trained on both regularly and irregularly spelled words but extracts regular spelling to sound relationships, which it can apply to new words. Training-related…