The acquisition of a complex morphological paradigm by L1 and L2 children

The performances of 690 L1 and L2 submersion children of grades 4 to 6 on a test of past tense (passé simple) production in French are compared with the aim of assessing how the two groups of children cope with learning a morphological form belonging to a complex paradigm. Homophony with other verbal forms of the paradigm (syncretisms) appears to play a role in the children’s answers. L2 submersion children have significantly lower scores than L1 children and they differ from L1 children in tending to overapply the regular ending. They also seem to be more attentive to agreement and to the visual form of the words than L1 children

A broad-coverage distributed connectionist model of visual word recognition

In this study we describe a distributed connectionist model of morphological processing, covering a realistically sized sample of the English language. The purpose of this model is to explore how effects of discrete, hierarchically structured morphological paradigms, can arise as a result of the statistical sub-regularities in the mapping between word forms and word meanings. We present a model that learns to produce at its output a realistic semantic representation of a word, on presentation of a distributed representation of its orthography. After training, in three experiments, we compare the outputs of the model with the lexical decision latencies for large sets of English nouns and verbs. We show that the model has developed detailed representations of morphological structure, giving rise to effects analogous to those observed in visual lexical decision experiments. In addition, we show how the association between word form and word meaning also give rise to recently reported differences between regular and irregular verbs, even in their completely regular present-tense forms. We interpret these results as underlining the key importance for lexical processing of the statistical regularities in the mappings between form and meaning