How do early bilingual experiences influence children's neural architecture for word processing? Dual language acquisition can yield common influences that may be shared across different bilingual groups, as well as language-specific influences stemming from a given language pairing. To investigate these effects, we examined bilingual English…

Speech recognition is an active process that involves some form of predictive coding. This statement is relatively uncontroversial. What is less clear is the source of the prediction. The dual-stream model of speech processing suggests that there are two possible sources of predictive coding in speech perception: the motor speech system and the…

We used fMRI to investigate competition during language production in two word production tasks: object naming and color naming of achromatic line drawings. Generally, fMRI activation was higher for color naming. The line drawings were followed by a word (the distractor word) that referred to either the object, a related object, or an unrelated…

New studies on how language learning occurs are beginning to chip away at some long-held notions about second-language acquisition and point to potential learning benefits for students who speak more than one language. New National Science Foundation-funded collaborations among educators, cognitive scientists, neuroscientists, psychologists, and…

Much recent psycho- and neuro-linguistic work has aimed to elucidate the mechanisms by which sentence meanings are composed by investigating the processing of semantic mismatch. One controversial case for theories of semantic composition is expressions such as "the clown jumped for ten minutes," in which the aspectual properties of a punctual verb…

Examines the language processing and acquisition abilities of the right hemisphere. Discusses functions performed by the right hemisphere that could play an important role in second language acquisition. (EKN)

Two experiments tested the limiting case of a multiple resources approach to resource allocation in information processing. Results contradict a single-capacity model, supporting the idea that the hemispheres' resource supplies are independent and have implications for both cerebral specialization and divided attention issues. (Author/PN)

A study investigated patterns of neurological event-related potentials (ERPs) elicited by morphosyntactic violations in 16 right-handed, English-speaking subjects. Manipulation of stimulus grammaticality and block probability led to ERP effects consistent with those in previous research on syntactic and semantic processing. Results also provide…

Three aspects of language behavior--linguistic independence, linguistic interference, and code-switching, are an integral part of the language processing experiences of the bilingual person. Complex cerebral mechanisms function in a coordinated effort to analyze and synthesize the various components of linguistic codes, store them in semantic…

Two studies evaluated the interhemispheric transmission deficit explanation of reading disability by comparing second- and sixth-grade normal and poor readers on learning and discrimination tasks involving hemispheric presentations of visual stimuli. Results suggested verbal processing rather than interhemispheric transmission as a cause of group…

Various communication studies have revealed the existence of a "preverbal" stage of communication consisting of centers within the brain that exists in an innate form or a form preprogrammed for future information acquired from the environment through experience (socialization). Such centers serve to prepare the individual for…

A study of eight adult chronic aphasic patients' comprehension of sentences and pictures in which comparisons of time and space were crucial was designed to assess A. R. Luria's approach to designing comprehension test tasks. The investigation required patients, with lesions of varying size and location, to determine whether a sentence expressing…

This volume brings to light: (1) studies on the effects of different ways of acquiring and teaching a second language; (2) psychological studies on lexical organization in the bilingual brain; (3) neurological research including more than 100 case studies of polyglot aphasics; and (4) original experimental research on language lateralization in…

Discusses the advances made in understanding the brain structures responsible for language. Presents findings made using magnetic resonance imaging (MRI) and positron emission tomographic (PET) scans to study brain activity. These findings map the structures in the brain that manipulate concepts and those that turn concepts into words. (MCO)

This final report on the relationship between orthographic characteristics and reading behavior consists of five chapters. The first chapter examines writing in its variety of forms in different cultures, noting that such differences can provide important clues to how the brain processes visual information. The second chapter addresses the issue…