How do children acquire the meaning of words? And why are words such as know harder for learners to acquire than words such as dog or jump? We suggest that the chief limiting factor in acquiring the vocabulary of natural languages consists not in overcoming conceptual difficulties with abstract word meanings but rather in mapping these meanings onto their corresponding lexical forms. This opening premise of our position, while controversial, is shared with some prior approaches. The present discussion moves forward (...) from there to a detailed proposal for how the mapping problem for the lexicon is solved, as well as a presentation of experimental findings that support this account. We describe an overlapping series of steps through which novices move in representing the lexical forms and phrase structures of the exposure language, a probabilistic multiple-cue learning process known as syntactic bootstrapping. The machinery is set in motion by word-to-world pairing, a procedure available to novices from the.. (shrink)

Number terms and quantifiers share a range of linguistic (syntactic, semantic, and pragmatic) properties. On the basis of these similarities, one might expect these 2 classes of linguistic expression to pose similar problems to children acquiring language. We report here the results of an experiment that explicitly compared the acquisition of numerical expressions (two, four) and quantificational (some, all) expressions in younger and older 3-year-olds. Each group showed adult-like preferences for “exact” interpretations when evaluating number terms; however they did not (...) use the corresponding upper bounded interpretation when evaluating the quantifier some. Apparently, children follow different procedures for learning and evaluating numerals and quantifiers. These findings have implications for theories of number representation in child and adult grammars. (shrink)

How do we talk about events we perceive? And how tight is the connection between linguistic and non-linguistic representations of events? To address these questions, we experimentally compared motion descriptions produced by children and adults in two typologically distinct languages, Greek and English. Our findings confirm a well-known asymmetry between the two languages, such that English speakers are overall more likely to include manner of motion information than Greek speakers. However, mention of manner of motion in Greek speakers' descriptions increases (...) significantly when manner is not inferable; by contrast, inferability of manner has no measurable effect on motion descriptions in English, where manner is already preferentially encoded. These results show that speakers actively monitor aspects of event structure, which do not find their way into linguistic descriptions. We conclude that, in regard to the differential encoding of path and manner, which has sometimes been offered as a prime example of the effects of language encoding on non-linguistic thought, surface linguistic encoding neither faithfully represents nor strongly constrains our mental representation of events. (shrink)

What are the landmarks of the cognitive revolution? What are the core topics of modern cognitive science? Where is cognitive science heading to? Leading cognitive scientists--Chomsky, Pylyshyn, Gallistel, and others--examine their own work in relation to one of cognitive science's most influential and polemical figures: Jerry Fodor.