Competition is a property of cognitive processing which results from learning that is characterized by the indeterminate encoding of instances and from processing that is characterized by the mutual influence of all activated representations on one another. In the present study, non-French participants learned gender-appropriate adjectives (petit or petite) for a set of 24 French nouns. We found that learning the same set of feminine French nouns could be made more or less difficult when the nouns in the masculine category created more or less competition. One measure from the Competition Model of MacWhinney and Bates (Bates & MacWhinney, 1987, 1989; MacWhinney, 1985, 1987) – cue reliability – predicted these competition effects. We tested an alternative measure based on the encoding of the nouns in memory (termed exemplars) and found that it predicted participants' mean learning performance somewhat more accurately. In the final section of this article, we extend our exemplar-based measure to a connectionist network in order to account for competition and the time course of learning. The network provided a superior fit to the data, with an average R2 = .91.

This study asked whether exposure to discourse elements affects idea production in novice writers. Different types of prompts were given to 127 high school subjects following the cessation of production. One prompt, termed contentless, was purely motivational; the other, a discourse prompt, conveyed a motivational message as well as information about the discourse structure of the problem/solution text. Subjects given discourse prompts generated significantly more idea units than those given the purely motivational variety. Also, subjects in the discourse-prompting condition spent more time generating ideas. The results held across topic interest and achievement levels, suggesting that instruction in discourse elements may prove beneficial.

This study was undertaken as a sequel to DePaolis (1991) to explore the role of sonority in constraining the word identification errors of normal listeners. The data from 9 subjects from DePaolis's study were used to examine the phonological relationships, defined by the Sonority Sequencing Principle (Jespersen, 1904), between response errors and stimulus targets - a methodology previously employed in the analysis of target-related neologisms (Christman, 1992b, 1994). The present study found that, although sonority may constrain onset-driven word-search processes, sonority and lexical phonostatistics may constrain coda-driven word-search processes. These findings are consistent with those obtained from the productive errors of aphasic subjects (Christman, 1994). Taken together, the results of these studies support a role for sonority in phonologically based aspects of word identification and word production.

In three typical phonological awareness tasks it was found that children with normal reading development sometimes give responses that are based on orthographic rather than phonological information. In dyslexic children, the number of occurrences of such orthographic intrusions was significantly lower. This effect cannot be explained by positing a lower degree of orthographic knowledge in dyslexic children since a group of younger children who had the same spelling level as the dyslexics also showed more orthographic intrusions. A plausible explanation for this difference between normal and dyslexic readers is that, in normal readers, phonological and orthographic representations of words are so closely connected that they are usually coactivated, even if such a coactivation is misleading. In dyslexics this connection is less strong, so that orthographic representations interfere less with phonemic segmentation. The relevance of this finding with respect to recent assumptions about the importance of phonology in establishing orthographic representations is discussed.

This study examines a task that can be applied in a uniform fashion across different languages to compare levels of vocabulary development in foreign language learning. Experiment I tested native speakers of Russian and German and demonstrated the basic comparability of the subjects' judgments for both words and nonwords. The results for Russian showed an influence of word length, which can be understood in terms of the Orthographical Depth Hypothesis. Experiment 2 applied the same task to learners of Russian and German and found that learners of Russian had achieved a lower level of vocabulary control than learners of German at comparable language exposure levels. This disadvantage for Russian can be attributed to the novelty of the Cyrillic graphemic system, which restricts the accessibility of written language input at early stages. There was a nonlinear increase over time in word sensitivity, which can be attributed to the increasing contribution of lexical plausibility factors at later stages of learning. Moreover, the lexical decision task appeared to be sensitive to inhibitory effects of concurrently studied languages, as well as to decay due to the lack of regular exposure. Together, these results indicate that the lexical decision task can be a useful tool for the assessment and crosslinguistic comparison of lexical development in foreign language learning.

This research examines the hypotheses about how print represents the speech that preliterate children select when they receive input compatible with several such hypotheses. In Experiment 1, preschoolers were taught to read hat and hats and book and books. Then, in generalization tests, they were probed for what they had learned about the letter s. All of the children were able to transfer to other plurals (e.g., to decide that bikes said “bikes” rather than “bike,” and that dog said “dog” and not “dogs”), but only those who knew the sound of the letter s prior to the experiment were able to decide, for example, that bus said “bus” and not “bug.” The failure to detect the phonemic value of s on the part of alphabetically naive children was replicated in Experiments 2, 3, and 4, which instituted a variety of controls. In Experiment 5, it was found that, although preschoolers who had been taught to read pairs of words distinguished by the comparative affix er (such as small/smaller) were able to generalize to other comparatives (e.g., mean/meaner), they could not generalize to pairs where er had no morphemic value (e.g., corn/corner). A similar failure by alphabetically naive children to detect the syllabic, as compared with the morphemic, status of the superlative affix est was found in Experiment 6. Overall, the results indicate that most preliterate children fail to select phonologically based hypotheses, even when these are available in the input. Instead, they focus on morphophonology and/or semantic aspects of words' referents. The research is couched in terms of the Learnability Theory (LT) (Gold, 1967), which provides a convenient framework for considering a series of interrelated questions about the acquisition of literacy. In particular, it is argued that if the data available to the child includes the pronunciation of written words, the alphabetic principle may be unlearnable, given the hypothesis selection procedures identified in these experiments.

This study was designed to determine whether there was a relationship between the ease with which children make use of orthographic analogies and their progress in learning to read. The results of an experiment using a reading age match design showed that poor readers performed as well as normal readers on orally presented measures of onset/rime sensitivity, but less well on visually/orally presented rhyme tasks. The poor readers also performed less well than the normal readers on a task that measured the children's ability to take advantage of analogical units when reading lists of words: these reading lists contained groups of words that differed according to (1) whether the words containing the common unit were presented contiguously or noncontiguously, and (2) whether the unit constituted the rime portion of the words or was embedded within the rime portion of the words. A follow-up intervention study demonstrated that poor readers who received instruction in the use of orthographic analogies achieved higher reading accuracy scores on subsequent readings than did a matched group of poor readers who received standard remedial instruction in context cue usage.

Recent work has suggested that phrasing occurs in prelinguistic vocalizations, and that audition significantly influences prelinguistic vocal development. The present report is about the continuing study of a child who is referred to as congenitally acochlear because he was born with complete bilateral absence of cochleas. The only prior report on the vocal development of an acochlear child was provided in a previous article in this journal about the present subject (Lynch, Oiler, & Steffens, 1989). Because this child was not producing meaningful speech during the 27 to 42 months of age in which he was studied, investigation of him provided a unique opportunity to observe prelinguistic vocal development in the complete absence of auditory information. In the prior study of the acochlear child, the analytical focus was on developmental changes in relations between his syllable characteristics and those of mature speech. In the present study, the analytical focus was on a recently introduced approach to the study of prelinguistic vocalizations involving the description of syllable groupings within a prosodic hierarchy. Adult judges identified a hierarchy of syllables embedded within utterances and utterances embedded within prelinguistic phrases in the acochlear child's vocalizations. Similar to the prelinguistic phrases of typically developing infants and infants with Down syndrome previously reported on (Lynch, Oller, Steffens, & Buder, 1995), the present child's prelinguistic phrases were characterized by a systematic lengthening of phrase-final syllables and cohesive temporal patterning. In addition, the durations of the acochlear child's prelinguistic phrases were similar to those of typically developing infants. However, in contrast with those of typically developing infants and infants with Down syndrome, the durational features of the prelinguistic phrases of the acochlear child were relatively unstable across development. Overall, the results indicate that audition is not necessary for the formation of prelinguistic phrasing, but hearing does influence certain aspects of prelinguistic phrasing. Based on the data obtained on this subject, typically developing infants, and infants with Down syndrome, essential characteristics of well-formed prelinguistic phrases are proposed. These are termed “canonical” phrases; their production and development may be important in the acquisition of meaningful speech.

This study examined the ability of young (mean CA = 29 years; SD = 3.67 years) and older adults (CA = 63 years; SD = 5.54 years) with mild to moderate mental retardation to produce complex sentences in naturalistic conversation. All of the complex sentences produced were coded into subcategories of complementation, relativization, or coordination. First, the overall proportion of complex utterances produced by each subject (based on the total number of utterances) was examined. Following this analysis, the well-formed production and productivity of the three general categories of complex sentences were considered. Individual complex sentences were then categorized by developmental level using Rosenberg and Abbeduto's (1987) acquisition scale. No significant differences were observed between the young and older groups.

This study examined the English vowel productions of 240 native speakers of Italian who had arrived in Canada at ages ranging from 2 to 23 years and 24 native English speakers from the same community. The productions of 11 vowels were rated for degree of foreign accent by 10 listeners. An increase in perceived accentedness as a function of increasing age of arrival was observed on every vowel. Not one of the vowels was observed to be produced in a consistently native-like manner by the latest-arriving learners, even though they had been living in Canada for an average of 32 years. However, high intelligibility (percent correct identification) scores were obtained for the same set of productions. This was true even for English vowels that have no counterpart in Italian.

This study investigates the applicability of the Subset Principle in the second language (L2) acquisi:ion of the Oblique-Case Parameter by 45 learners of French. First, the Subset Principle is defined and discussed, along with its learnability predictions in first language (L1) acquisition. Then, a brief overview of the relevant literature in L2 acquisition shows that the applicability of the Subset Principle is very much debated. In the present study, the results of a grammaticality judgment task and a correction task provide partial support for the Subset Principle. It seems that the learners have acquired the lack of Exceptional-Case marking and preposition stranding, two of the syntactic properties tested, based on the positive evidence available to them. However, they failed to reject a number of ungrammatical instances of dative alternation and dative passive, leading them to an overgeneralized grammar. It is suggested that L2 learners may need direct or indirect negative evidence to constrain their grammar. Further research is needed to conclude whether the Oblique-Case Parameter really is a parameter of Universal Grammar, and if so, whether adult L2 learners are able to reset their parameters to the proper target language values.

An important component of the communicative competence of proficient bilinguals is the ability to use each of their languages differentially and appropriately according to relevant characteristics of the interlocutors and communicative situations. The research reported here examined the communicative competence of four young children (average age of 2;2, average MLU of 1·56) who were acquiring English and French simultaneously in the home. We observed the ways these children used their languages with monolingual strangers and with their bilingual parents. Specifically, the children's use of English-only, French-only, and mixed (English and French) utterances with the strangers during naturalistic play situations was compared with patterns of use with their parents, also during play sessions. We found that all of the children made some accommodations that could be linked to the monolingualism of the stranger; some of the children were more accommodating than others. The results are discussed in terms of young bilingual children's ability to modify their language on-line in response to the particular language characteristics of their interlocutors.

The learning of second language vocabulary in lists of word pairs is a widespread practice. A basic practical question in this respect is whether it is more effective for nonfluent bilinguals to learn word pairs in first language–second language order (Ll–L2), or vice versa. To date, experimental psychology has not given a clear answer to this question, partly because it has not addressed the relevant issues directly. This article reviews some aspects of psychology that are relevant to L2 vocabulary list learning and reports on an experiment conducted with comprehensive (high) school students, aged 11–13, who were learning French. The experiment examined the presentation of vocabulary items to be learned. It was found that presenting items in L1–L2 order was the more versatile form of presentation if both production and comprehension of L2 items were required on the part of the learner. The theoretical implications of the findings, relating to the structure of the bilingual lexicon, are also discussed.

This study examines the role that voiced stop spirantization plays in the acquisition of English/b d g/ and /dgr;/ by native Spanish speakers. The results of a data-based experiment show that accuracy in English pronunciation is hindered by native language transfer, including the transfer of spirantization and LI syllable structure constraints. Furthermore, the suppression of spirantization is not achieved at an equal rate for all voiced stops: /d/ is spirantized the least often. It is proposed that the phonemic value of /δ/ in English contributes to this disparity. An examination of the L2 pronunciation of /δ/ further reveals that learners do not assign phonemic status to /δ/ in all contexts; it is acquired in postvocalic position first and only more gradually acquired elsewhere.

This study examined the pseudoword reading strategies of dyslexic readers (i.e., children whose reading was significantly lower than predicted by their IQ score) and poor readers (i.e., children whose reading scores were consistent with their lower IQ scores). The disabled readers were grouped according to their reading grade level and were compared with reading level matched, normally achieving readers. The reading performance on a test of pseudoword reading (Woodcock Word Attack Subtest) for the three groups (dyslexic, poor, and normal readers) was analyzed according to the type of error committed. The performance of dyslexic and poor readers was virtually indistinguishable at both reading grade levels 2–3 and 4–5. There was very little difference among dyslexic, poor, and normally achieving readers in the types of errors made. Nearly 50010 of all the oral reading errors of all three groups were vowel substitutions, followed by consonant substitution and deletion and insertion errors. Sequential, reversal, and word substitution errors were committed infrequently for all three reader groups. The findings failed to support the existence of a critical phonological processing difference between IQ reading- discrepant and IQ reading-nondiscrepant disabled readers and suggest that disabled readers lag behind normally achieving readers in phonological decoding skills.

Repeated reading of meaningful text has been shown to produce improvements in reading rate, fluency, and comprehension in readers of varying ability. The assisted repeated reading (ARR) method, which provides a fluent and expressive (i.e., prosodic) model, has been proposed as being particularly helpful in this regard. However, it is unclear which component of the ARR method (prosodic modeling or reading practice with intact text) is the most influential factor. The present study examined the effects of text practice and prosodic modeling on the reading rate, accuracy, expressiveness, and comprehension of 40 grade 5 disabled readers. Text practice and prosodic modeling were systematically varied to create four training conditions. Each subject read the first half of a set of stories three times under one of the four experimental conditions. Pretest and posttest measures of the dependent variables were analyzed for both the training passages and the second half of each story, on which no training occurred (transfer passages). While reading performance improved across all conditions, substantial additional gains were produced by the conditions that included the practice of intact text. Modeling of prosody did not produce significant additional gains. Transfer effects were limited, with only the ARR condition producing improved accuracy on the second half of the stories.

Children with specific language impairment (SLI) often show more limited use of grammatical morphology than younger, normally developing children matched according to mean length of utterance (MLU). However, within groups of children with SLI, individual differences are seen in grammatical morpheme use. In this study, we examined the role of weak syllable use in explaining some of these differences. Employing two different languages – English and Italian - children with SLI were placed into pairs. The children in each pair showed similar MLUs; however, one member of the pair showed a greater use of particular function words. In each of the pairs examined in both languages, the children with the greater use of function words also showed a greater use of weak syllables that did not immediately follow strong syllables. The weak syllable productions of children showing a more limited use of function words in each pair seemed to be dependent on a strong syllable-weak syllable production sequence. This sequence appeared to be operative across several prosodic levels, as defined within the framework of prosodic phonology. Because weak syllables that follow strong syllables usually have longer durations than those that precede strong syllables, the findings might have a perceptual basis. However, the results raise the possibility that limitations in prosody can restrict the degree of grammatical morpheme use by children with SLI.

The speech of 9 middle-class black, 9 middle-class white, 9 working-class black, and 9 workingclass white parents to their preschool children was examined during picture identification, free play, and a meal. The groups were found to be similar in the level and form of parental labeling. The groups differed in the information the parents supplied about objects in the various settings, in the parent's direction of the child's behavior, and in parental sensitivity to the child's age. Within the working-class groups, the frequency of vernacular features in the parents' speech correlated with the quality of information they provided.

The relative influences of medium and context variables were investigated by comparing 7- and 8-year-old children's spoken and written explanations in varying contexts: a story task, a question task, a sentence completion task, and a whole sentence production task. In the story task, performance in a “purpose” condition (which provided a specific communicative purpose for the production of an explanation) was compared with performance in a “neutral” condition. The frequency of explanations containing correct causal expressions was significantly higher in the purpose condition than in the neutral condition and significantly lower in the story task than in the three more structured tasks. In contrast to these contextual influences, performance in the written medium was very similar to performance in the spoken medium.

Language choice and functional differentiation between Papiamento and Dutch were studied in bilingual parent-child reading sessions in Antillian migrant families; the subjects, who were living in the Netherlands, were to some extent bilingual in Papiamento and Dutch. Mothers were asked to read three picture books to their child: one in Dutch, one in Papiamento, and one without text. Code choice was related to the text and contents of the book, as well as to restrictions imposed by the language proficiency in both languages of the mothers and children. It was expected that Dutch would be used more for more demanding cognitive functions because of its association with school. However, these parents did not categorize rnetalinguistic activity and reasoning as school-related, although they did categorize counting as such and tended to use Dutch to count.