bluuebunny/crossref_metadata_2025 huggingface dataset:
Comprehension and production of comparatives and superlatives
Authors: Layton Thomas L. , Stick Sheldon L.
Published: September 2008

Ten objects were used to assess comprehension, production, and imitation of comparative and superlative suffixes in 100 children ranging in age from 2; 6 to 4; 6. The results indicated that comprehension of both suffix forms was similar at each of five age levels studied; although incrementally better comprehension scores occurred with succeeding ages. Virtually all subjects were successful in imitating forms missed during the comprehension task. Analysis revealed that the -er suffix was produced more often than the -est suffix, at the youngest age (2; 6): at succeeding age levels this difference was reversed. Big was the primary lexical unit selected by the subjects for positive and negative polar forms connoting size; little was the second most frequently used adjective form.
The acquisition of the voicing contrast in Spanish: a phonetic and phonological study of word-initial stop consonants
Authors: Macken Marlys A. , Barton David
Published: September 2008

This paper reports on the acquisition of the voicing contrast in Mexican–Spanish word-initial stops. In Study 1, three monolingual children were recorded every two weeks for seven months, beginning when the children were about 1; 7. In Study 2, four monolingual children about 3; 10 were recorded once or twice. Two analyses were done. Instrumental analysis of the stop productions revealed that not even by age 3; 10 were the children consistently distinguishing between voiced–voiceless stop cognate pairs on the basis of adult-like voice-onset time characteristics. The spirantization analysis, however, more clearly revealed the children's phonological knowledge. Discussion focuses on the implications of the data for phonological development in general and for the phonological description of voicing in Spanish.
The acquisition of some Dutch morphological rules
Authors: Snow Catherine E. , Smith Norval S. H. , Hoefnagel-Höhle Marian
Published: September 2008

The acquisition of the morphological rules for plural, agentive, and diminutive suffixes in Dutch was studied. Subjects included 7- and 12-year-old native speakers, and second-language learners in three age groups (5–10 years, 12–18 years, and adult). The first- and second-language learners showed very similar orders of acquisition for the rule systems governing plural and diminutive, but the second-language learners showed a subtle form of interference from their first language in acquiring the agentive. The findings suggest that morphological acquisition proceeds piecemeal, with the learning of specific word ending + allomorph sequences, and that generalizations at the level of morphological rules may not be made even after several years of correct performance with the allomorph in question.
Conversational asymmetry between mothers and children
Authors: Kaye Kenneth , Charney Rosalind
Published: September 2008

TURNABOUTS, which both respond to and require a response from the other (either verbal or nonverbal), were produced more than twice as often by mothers as by their children at 2; 2 and 2; 6, in videotaped dialogues during semi-structured play. The 27 mothers showed stable individual differences in this aspect of their turn-taking, across situations and across time. Children tended to take a reciprocal role rather than an imitative one within the immediate situation: if a mother produced many mands, her child produced few. At 2; 10 the children were tested for language comprehension, puzzle-solving and conversational engagement with an investigator. Mothers' mands at the earlier ages appeared to have a negative effect upon these measures, even when social class differences were controlled; but causal interpretations were complicated by the fact that language production measures also predicted the 2; 10 cognitive measures.
Contingent query sequences within adult–child discourse
Authors: Gallagher Tanya M.
Published: September 2008

The structure of contingent query sequences within adult–child discourse was examined. The children, aged 1; 11–3; 0 in language stages I–III, demonstrated basic knowledge of the contingent query. Implications for conceptualizations of the young child's communicative competence and for theoretical formulations of the query sequence itself are discussed.
Context-specificity and generalization in the acquisition of pronominal distinctions
Authors: Chiat Shulamuth
Published: September 2008

The pronoun system provides a fruitful area for investigating the conditions under which children make linguistic generalizations. Pronouns are defined by a complex of semantic, syntactic, and morphological distinctions whose interaction is only partially consistent. In the course of acquiring them, children often make systematic errors which reflect novel generalizations from the adult input. A distributional analysis was applied to the errors made by 48 children in marking distinctions of person, possession, and case in their spontaneous use of pronouns. The analysis indicated that children do not make maximal generalizations which extend a particular feature to all related contexts. Rather, they acquire specific complexes of features, and are quite conservative in extrapolating from one feature complex to another.
Category development in early language
Authors: Rescorla Leslie A.
Published: September 2008

Developing knowledge of the vehicle, animal, and fruit categories was traced in six children from 1; 0 to 1; 8. Data from mothers' language diaries and from bi-monthly sessions with the children were pooled to analyse the growth, content, and internal structure of the three categories over time. The children developed some grasp of most of the focal concepts in each category, but they made fewer differentiations than adults do. Overextension of a single concept term to encompass a cluster of related referents was common. The frequent discrepancies between comprehension and production of concept terms highlighted the importance of examining both modes. The data showed marked individual differences in style of category acquisition.
Children's understanding of indirect requests: comparing child and adult comprehension
Authors: Carrell Patricia L.
Published: September 2008

Based on Clark & Lucy's (1975) study of adult comprehension of different types of indirect requests, this study addresses the questions: ‘How well are children aged 4 to 7 able to understand these same indirect requests?’ and ‘How does the relation between request type and ease of comprehension compare from children to adults?’ Results showed: (1) these children are able to comprehend a wide variety of indirect requests; (2) there is a general developmental pattern of acquisition; (3) interrogative forms are more difficult than declarative forms; (4) conveyed negative requests are more difficult than corresponding conveyed positive requests; (5) children are heavily influenced by the surface polarity of the conveyed request; and (6) the relationship between request type and ease of comprehension is strikingly similar for both children and adults.
Tag constructions: structure and function in child discourse
Authors: Berninger Ginger , Garvey Catherine
Published: September 2008

A distinction has been drawn between tag questions which occur within the same temporally defined turn and those in a second turn by the same speaker. A TAG CONSTRUCTION has been defined as a MATRIX CLAUSE (any syntax) and a TAG FORM (reduced interrogative in elliptical constructions; or interrogative expression in stereotypical constructions) produced WITHIN THE SAME TURN. The discoursal functions of tag constructions include requests for information, agreement, permission, compliance, responsiveness and attention. Although stereotypical tag constructions emerge earlier in development than elliptical tag constructions, from the beginning stereotypical tag constructions perform the same discoursal functions as the grammatically more complex elliptical constructions as well as additional ones. Tag constructions are less effective than canonical questions in obtaining turn transfers. This relative ineffectiveness may be due to either the post-positioned clearance signal or the fact that the listener feels less compelled to respond when the speaker seems to have an expectation as to what the response to the request should be.
Understanding sentences in varying contexts
Authors: Presson Clark C.
Published: September 2008

The present study tested Huttenlocher & Weiner's (1971) hypothesis concerning the role of grammatical function in sentence comprehension. Children arranged objects to correspond to descriptions of transitive relations in two tasks. The patterns of object placements provided evidence of how children understood the various sentence forms. Contrary to Huttenlocher & Weiner's hypothesis, grammatical function was not a critical factor in object placements. This was true based on the group data or individual-based analyses. Two factors were important: logical function and order of mention of the items in the sentence. Whether an item was grammatical subject or grammatical object did not affect subjects' choices. The order of mention effects resulted from inattention to sentence meaning prior to the initial choices on certain trials. If the logical relations in a sentence were understood prior to the response, only logical function influenced subjects' responses.
Mother conversational behaviour as a function of interactional intent
Authors: McDonald Lynda , Pien Diana
Published: September 2008

Previous research has suggested that the syntactic and semantic characteristics of mother speech are determined by the underlying intention of mothers to control (Newport 1977) or to converse with (Snow 1977) the child. The present study attempts to delineate the structure among functionally categorized mother conversational behaviours, especially those which might reflect the mother's intention to control or converse with her child. The utterances of II mothers with their children (aged 2; 5–3; 0) were categorized according to their illocutionary force or function. Conversational parameters, such as topic change rate and talkativeness, were also measured. Intercorrelations among all these mother variables showed a polarized pattern, reflecting two predominant mother intentions for conversational interaction: the control of the child's physical actions, and the elicitation of his conversational participation. Implications of the findings, especially those indicating the incompatibility of controlling and conversation-eliciting intentions, are discussed.
Pragmatic factors in children's phrasal coordination
Authors: Greenfield Patricia M. , Dent Cathy H.
Published: September 2008

This study of children's conjunction reduction contrasted the syntactic view of forward and backward deletion of base structure elements with the idea that pragmatic factors of situational redundancy and perceptual grouping account for conjunction reduction. Ninety-four children described an action sequence (putting differently coloured beads into a cup) so that a listener positioned behind a screen could repeat them. Half the children communicated as the action was being carried out (SIMULTANEOUS condition), mitigating against perceptual grouping of beads in the cup. Half communicated after the action was completed (POST condition), permitting perceptual grouping. Backward deletion was more frequent in the post than in the simultaneous condition. Also, the overall high frequency of forward deletion reflected encoding of novelty and omission of repetitive elements. These results suggest syntax is pragmatically motivated.
Characteristics of adult speech which predict children's language development
Authors: Barnes Sally , Gutfreund Mary , Satterly David , Wells Gordon
Published: September 2008

Samples of the speech addressed by adults to a socially representative sample of 2-year-olds in naturally occurring contexts of interaction were analysed with respect to syntactic, semantic, pragmatic and discourse features to determine which features were most strongly associated with gain by the children on a variety of measures of language development over the ensuing 9 months. Following a principal components analysis of the adult speech variables, the most highly loading variables on the first six components were correlated with children's gain scores. Polar interrogatives, directives and extending utterances were all found to be associated with at least one measure of development. The results are if interpreted as evidence of reciprocal, rather than one-way facilitation.
Noun phrases and coherence in child narratives
Authors: Bennett-Kastor Tina
Published: September 2008

An analysis was undertaken to determine the grammatical and semantic means by which children achieve textual coherence, in narratives in particular and discourse in general. Twenty-one stories from twelve children aged two to five were analysed, with particular attention given to noun phrases (NPs) which were introduced and reiterated at least once in subsequent story clauses. In recognition of the agent-oriented nature of narrative and its sense of the succession of events, children introduced and reiterated primarily + animate NPs in their stories, expressing them predominantly as agents. With respect to discourse coherence in general, most reiterated NPs appeared in subject position both with introduction and subsequent mention, suggesting they were elements of focus. The given-new distinction was well preserved, too. Though at age five stories became considerably longer and denser with reiterated NPs, features of textual coherence held for all the age groups considered.
The effects of intonation on infant attention: the role of the rising intonation contour
Authors: Sullivan Joseph W. , Horowitz Frances Degen
Published: September 2008

The study was designed to investigate 2-month-old infant preferential attention to a feature found to be characteristic of mothers' speech to their infants. A modified infant-control auditory preference paradigm was employed to assess infants' differential attention to synthetically generated and naturally produced rising and falling intonation contours. Analysis of these data revealed that the infants attended more to the rising naturally produced intonation contour. A reverse pattern of greater attention to the falling contour was found with the synthetically generated stimuli. In addition, inspection of the results permitted the conclusion that the infant-control preference paradigm was a viable method for assessing the 2-month-old infant's preferential attention to auditory stimuli. The results are discussed in terms of their relevance to the study of the infant's developing language reception abilities.
The emergence of communicative competence: detection of conversational topics
Authors: Luszcz Mary A. , Bacharach Verne R.
Published: September 2008

The use of linguistic and extralinguistic information in identifying conversational topics was studied in 3- and 5-year-old children. Pictures portraying an actor–action–object relation were used to guide conversations. Both active pictures, emphasizing an action relating actor and object via postural cues, and static pictures, which did not, were used. Linguistic topics were implied by prefacing each picture with comments topicalizing actor, action or object. In neutral control groups no topic was implied and, in an explicit control group of 3-year-Olds the actor's action on the object was directly topicalized. While implicit topic definition was sufficient for 5-year-olds' production of contingent replies, explicit definition of a topic was necessary to evoke a similar pattern of replies from 3-year-olds. These findings are discussed in terms of different modes of topic definition and their order of acquisition.
Patterns of early lexical and phonological development
Authors: Stoel-Gammon Carol , Cooper Judith A.
Published: September 2008

This paper presents a detailed analysis of early lexical and phonological development in three children. The study covers the period from late babbling through the acquisition of 50 conventional words and focuses on: (1) the relationship between prelinguistic and linguistic vocalizations; (2) phonological development after the onset of speech; (3) patterns of lexical selection; (4) rate of lexical acquisition; and (5) use of invented words. The findings reveal that while the prelinguistic utterances of the children were similar, there was extensive inter-subject variation after the onset of meaningful speech, particularly in the segmental and syllabic forms of word productions, patterns of lexical selection, rate of lexical acquisition, and use of invented words.
Non-linguistic responses to verbal instructions
Authors: Bernstein Mark E.
Published: September 2008

Children's responses to verbal instructions to place objects in, on, or under other objects were examined according to the paradigm developed by Clark (1973). In the present study, however, all objects were unfamiliar to the children, and were completely neutral and context-free. An additional task assessed children's comprehension of the spatial terms by asking them simply to point to objects in particular relationships without actually manipulating them. The results supported Clark's hypothesis of the influence of non-linguistic strategies on younger children's responses, in contradistinction to other studies critical of Clark's findings. However, when not required to manipulate the objects, children indicated greater comprehension than otherwise expected. The results are discussed in relation to the influence of task context on comprehension studies of this type.
Acquisition of locative meanings: behind and in front of
Authors: Johnston Judith R.
Published: September 2008

Studies of locatives suggest regularities in order and age of acquisition, including systematic changes in context of use for behind and in front of. The present investigation extends earlier work by utilizing more naturalistic elicitation procedures and exploring an early use of behind and in front of with large reference objects. Thirty-three children, ages 2; 7 to 4; 7, told puppets where to look for missing objects. Results indicate an order of acquisition for English locatives which is consistent with prior reports. However, the puppet story method elicited given locatives at younger ages, and the first uses of behind occurred with large, non-featured reference objects. The patterns of use for behind and in front of suggest an acquisition process in which new conceptual resources lead to the re-analysis of object configurations and thus to new aspects of meaning.
The comprehension of semantic relations by two-year-olds: an exploratory study
Authors: Corrigan Roberta , Odya-Weis Cyndie
Published: September 2008

A token-placement technique was used to investigate the influence of actor and patient animacy in determining which sentences 48 2-year-olds viewed as prototypical. After training on one of three sentence types that varied in the animacy/inanimacy of actors and patients, all children were tested for generalization on pictures with different animacy/inanimacy patterns. While most children placed actor tokens on generalization sentences correctly, regardless of animacy, half responded randomly in patient token placement. Type of training only affected children who, overall, were random responders. The results suggest that the actor category is usually acquired first for prototypical sentences with animate actors and inanimate patients.
The development of locative comprehension in Spanish
Authors: Conner Peggy S. , Chapman Robin S.
Published: September 2008

Forty monolingual Spanish-speaking Peruvian children ages 3; 6–5; 5 were given a search task to test comprehension of six locative phrases depicting the four spatial relations in front of, in back of, beside and under. Performance improved with age and was best for under (debajo de) and poorest on beside (al costado de, al lado de). There was no evidence that locatives lacking object part terms (delante de for in front of and al costado de for beside) resulted in poorer performance than locatives that included the object part labels (enfrente de, al lado de). Nor was there evidence to support the positive pole hypothesis that in front of items would be easier than behind. Performance was best when the children themselves were the reference object, next best with a fronted object, and poorest with a nonfronted object, suggesting that preschoolers may understand projective locatives with respect to the reference object's intrinsic orientation, rather than imposing their own point of view.
Implicit contrast in adjectives vs. nouns: implications for word-learning in preschoolers
Authors: Gelman Susan A. , Markman Ellen M.
Published: September 2008

On some views of language, when one uses a term to describe or label an object, a contrast is always implied. However, there is an important difference between nouns and adjectives in their contrastive use: adjectives imply a contrast between members of a single noun category, whereas nouns do not imply a contrast between members of a single adjective category. For example, describing a car as new suggests a contrast with other cars. However, labelling it as a car does not as clearly imply a contrast with other new objects. There is no logical necessity for this distinction – it is not captured by the literal meanings of words. Yet it is a conceptual distinction implicit in the use of these terms. In two studies, we tested preschool children's appreciation for this conceptual distinction, using both familiar and unfamiliar words. In Study I, 4-year-olds (but not 3-year-olds) were able to disambiguate the meanings of simple nouns and adjectives by assuming that the adjectives, unlike the nouns, implied a contrast between category members. In Study II, children selected pictures to match totally novel adjectives and nouns (e.g. the fep one, the skub). Relying on part of speech alone, they interpreted these unfamiliar nouns and adjectives differently. Implications for children's use of referential language and word-learning strategies are discussed.
The relation between grammatical development and mean length of utterance in morphemes
Authors: Klee Thomas , Fitzgerald Martha Deitz
Published: September 2008

A widely held practice in many studies of child language development and disorders has been to employ an easily calculated numerical metric, mean length of utterance measured in morphemes (MLU), as a ‘general index of grammatical development’. While this practice seems to have found acceptance among many students of child language, the usefulness of MLU past Stage II has been assumed but never empirically tested. This study evaluated the grammatical performance and MLU of 18 normally developing 2- and 3-year-old children and found that MLU did not correlate significantly with age (r = 0·26), nor did it discriminate children's profiles of grammatical development.
A tip-of-the-tongue experience at age two?
Authors: Elbers Loekie
Published: September 2008

Some word-finding problems (recorded on tape) of a Dutch two-year-old are reported. The child's attempts at retrieving a certain target form show many characteristics which are typical for ‘tip-of-the-tongue’ experiences. During his lexical search the child produces malapropisms and a blend. The speech errors are analysed, and implications for the character of early lexical organization and the order of lexical form/meaning acquisition are discussed.
How do children describe spatial relationships?
Authors: Cox M. V. , Ryder Richardson T.
Published: September 2008

H. Clark's hypotheses regarding the acquisition of spatial terms were tested using a task designed to elicit subjects' descriptions of different object arrangements. Children from 3 to 10 years and a group of adults were tested. There was some support for Clark's prediction that the perceptual difficulty of each dimension will affect the order of acquisition of the associated linguistic terms, in that the terms followed the predicted order (1) vertical, (2) horizontal-frontal, (3) horizontal-lateral, in the early years. However, it was concluded that since the horizontal-frontal terms lagged behind the others in later childhood and adulthood, perceptual difficulty alone was not an adequate explanation. In addition, no support was found for Clark's notion that linguistic terms associated with the ‘positive’ end of each spatial dimension will be acquired earlier than those associated with the ‘negative’ end.
Topic and communicative intent in mother–child discourse
Authors: Wanska Susan K. , Bedrosian Jan L.
Published: September 2008

This study examined topic discourse skills in 30 pre-operational level children interacting with their mothers in a free play situation. For each interaction, topic initiations/shadings were analysed for here-and-now, fantasy, and displacement topics. All turns (initiations, shadings and maintenance) involving these topic categories were also coded for communicative intent. Results indicated that children initiated/shaded more fantasy topics than their mothers, who initiated/shaded more displacement topics. Topic maintenance was significantly greater for fantasy and here-and-now topics than for displacement. Mothers initiated/shaded and maintained topics primarily by requests for all three topic categories. Children used more informatives to initiate/shade these topics, and maintained fantasy and displacement topics primarily by responses to mothers' questions. The results suggested a complex picture of children's management of discourse as it relates to topic and mothers' continuing role in facilitating their children's discourse skills.
The episodic structure of maternal speech to young children
Authors: Messer David J.
Published: September 2008

An investigation was made of the episodic structure of maternal speech to young children during a free-play session. The findings indicate that maternal speech was organized so as to provide a high degree of redundancy with regard to the referential component of speech. The beginning of episodes, in which the same object was repeatedly referred to, was clearly marked; furthermore speech inside episodes with a common referent was highly repetitive. All this suggests that maternal speech is organized in a way that increases the predictability in the child's language environment.
A phonetic analysis of consonantal devoicing in children's speech
Authors: Smith Bruce L.
Published: September 2008

A number of phonologists have observed the frequent occurrence of ‘devoiced’ obstruents in word-final position in children's utterances. Although such transcription-based accounts have provided evidence of the phenomenon, physical phonetic properties of devoiced consonants have not been described. Therefore, characteristics of voicing control for ‘voiced’ and ‘voiceless’ stops produced by five English-speaking children aged 2; 6–3; 0, five aged 4; 0–4; 6, and five adults were investigated in terms of (1) the percentage of all stop productions evidencing ‘devoicing’ during consonant closure, and (2) in the case of devoiced stops, the proportion of consonant closure evidencing voicing. Both groups of children revealed substantial amounts of consonantal devoicing when compared with the adults; in addition, the proportion of stop closure evidencing voicing was considerably less for the children than for the adults. It was also observed, however, that the children's ‘devoiced’ stops revealed significantly more voicing than their phonemically ‘voiceless’ stop productions.
Verbal and nonverbal aspects of mothers' directives
Authors: Schaffer H. R. , Hepburn Anne , Collis G. M.
Published: September 2008

Maternal directives to children aged 10 and 18 months were analysed with respect to both verbal and concomitant nonverbal aspects. The findings emphasize the multimodal nature of mothers' communicative messages and draw attention to the way in which language occurs in an action context and not as an isolated output. No indication was found for this age range that verbal devices come to replace nonverbal ones. At both ages most utterances were accompanied by some form of nonverbal behaviour; the precise nature of the association, however, gives little support to the idea of parallel coding. The child's own behaviour is also shown to form part of the context in which maternal speech takes place.
Feedback to first language learners: the role of repetitions and clarification questions
Authors: Demetras M. J. , Post Kathryn Nolan , Snow Catherine E.
Published: September 2008

The conclusion that information regarding the grammatically of children's speech is unavailable in parental input has recently been challenged (Moerk 1983 a, b, Hirsh-Pasek, Treiman & Schneiderman 1984). The present study expanded on this research by broadening the definition of ‘negative feedback’ and by describing individual styles of mother–child dialogues. The purpose was to investigate whether mothers of four 2-year-old children responded differentially to their children's well-formed or ill-formed utterances with explicit and implicit feedback. The middle-class, English-speaking, mother–child dyads were recorded in a naturalistic context at home during play and eating activities. Explicit and implicit feedback were different in terms of the proportion of responses available to the child and their relation to well-formed and ill-formed utterances. The style of response was similar for most analyses across the four mothers.
Twin talk: manifestations of twin status in the speech of toddlers
Authors: Malmstrom Patricia M. , Silva Marilyn N.
Published: September 2008

With the expectation that an examination of language between toddler twins in their home environment would reveal characteristics unique to the subjects' twin status, 31 hours of crib-talk between identical twin girls and diary records of their speech were examined. It was found that the subjects developed conventional syntax and vocabulary, but adapted them in ways which appropriately expressed their twin status. Three salient examplesinclude their use of a double name for themselves as a team, their use of singular verbs in reference to themselves together, and their use of the singular pronoun me in pronominal reference to themselves as a team.
The early acquisition of spatial adjectives: a cross-linguistic study
Authors: Harris Paul L. , Morris Jeremy E. , Terwogt Mark Meerum
Published: September 2008

In two experiments, the early acquisition of spatial adjectives is examined. In Experiment 1, 3- to 4-year-old and 4- to 5-year-old English children were tested for their comprehension of big, tall and long. In general, comprehension of all three adjectives improved with age, but in confirmation of Maratsos (1973) there was a sharp increase with age in one particular type of error: when asked to select the bigger of two objects, older children frequently chose the taller but smaller member of the pair. Further analysis showed that those older children who understood the word tall were especially likely to make this error. In Experiment 2, Dutch children of the same age were tested for their comprehension of groot (meaning ‘big’) and lang (meaning both ‘tall’ and ‘long’). Dutch children were also prone to choose the taller of two objects when asked to point to the bigger one, although Dutch does not possess a spatial adjective such as tall that refers exclusively to the vertical dimension. The implications of the findings for the acquisition of spatial adjectives, and for theories of semantic development are discussed.
Perceptual strategies in prelingual speech segmentation
Authors: Goodsitt Jan V. , Morgan James L. , Kuhl Patricia K.
Published: September 2008

Previous work has suggested that infants may segment continuous speech by a BRACKETING STRATEGY that segregates portions of the speech stream based on prosodic cues to their endpoints. The two present studies were designed to assess whether infants also can deploy a CLUSTERING STRATEGY that exploits asymmetries in transitional probabilities between successive elements, aggregating elements with high transitional probabilities and identifying points of low transitional probabilities as boundaries between units. These studies examined effects of the structure and redundancy of speech context on infants' discrimination of two target syllables using an operant head-turning procedure. After discrimination training on the target syllables in isolation, discrimination maintenance was tested when the target syllables were embedded in one of three contexts. Invariant Order contexts were structured to promote clustering, whereas the Redundant and Variable Order contexts were not. Thirty-six seven-month-olds were tested in Experiment I, in which stimuli were produced with varying intonation contours; 36 eight-month-olds were tested in Experiment 2, in which stimuli were produced with comparable flat pitch contours. In both experiments, performance of the three groups was equivalent in an initial 20-trial test. However, in a second 20-trial test, significant improvements in performance were shown by infants in the Invariant Order condition. No such gains were shown by infants in the other two conditions. These studies suggest that clustering may complement bracketing in infants' discovery of units of language.
Phonological devices in poems by English and Italian children
Authors: Dowker Ann , Pinto Giuliana
Published: September 2008

Poems were elicited from 133 English children between two and six and 171 Italian children between three and seven, using a similar technique, and the results were compared. Both groups produced large numbers of poems. There were great similarities and some differences. The majority of poems in both samples contained phonological devices (mostly rhyme and alliteration) and the proportion was higher (87%) in the Italian sample than in the English sample (59%). The proportion of poems that contained rhyme was close to 45% in each sample, with no consistent age difference in either sample. About one-third of Italian poems and just over a fifth of English poems contained alliteration. The frequency of alliteration declined with age in the English sample but not in the Italian sample. Possible reasons for the differences between the samples are considered. It is argued that the similarities are more important, and their theoretical implications are discussed.
Pronoun case overextensions and paradigm building
Authors: Rispoli Matthew
Published: September 2008

Pronoun case errors, or overextensions, like *me want it are characteristic of English child language. This paper explores a hypothesis that the morphological structure of a pronoun influences the pattern of these errors. The Language Acquisition Device (LAD) attempts to analyse English pronoun case forms into stems and affixes, but cannot because of their irregularity. Nevertheless the LAD extracts a phonetic core for each pronoun (e.g. /m-/ for the ist sg., /h-/ for the 3rd masc. sg.). The phonetic core blocks the overextension of suppletive nominative forms like I and she. This hypothesis predicts strong differences in the frequency and types of errors between pronouns with suppletive nominatives and those without. Evidence for this hypothesis was found in a transcript database of twelve children, with data collected in one hour samples every month from 1;0 to 3;0. 20,908 pronouns were examined, 1347 of which were errors. Statistical analyses of these data provide support for this hypothesis.
Scrutinizing reference: how gesture and speech are coordinated in mother-child interaction
Authors: Schmidt Chris L.
Published: September 2008

Maternal estensive naming was investigated in a cross-sectional study of 12 children aged 0;10, 1;3 and 1;6, and a follow-up study of four children aged 1;3. Display, demonstration and pointing were coded with regard to whether and how co-occurring speech referred to gesture focus. Multivariate log-linear frequency analyses found that mothers' coordination of speech with gesture varied with age and the gesture used. Maternal naming of objects was most frequent with children aged 0; 10. Maternal gesture-speech coordination with children aged 1;3 and 1;6 differed in two related ways: (1) actions were named more frequently than objects; and (2) mothers often combined gesture with complementary speech referring, not to gesture focus, but to an action to be performed with the object indicated. At all ages, pointing was rarely used to name ostensively, and occurred most often in combination with complementary reference. Maternal input was found to be significantly correlated with children's reported receptive vocabulary.
Information level and young children's phonological accuracy
Authors: Goffman Lisa , Schwartz Richard G. , Marton Klara
Published: September 2008

The influence of information level on the production accuracy of 20 children (22 to 28 months) was examined. The data were children's productions of nouns in sets of utterances referring to triplets of pictures representing noun-verb-noun utterances. In each triplet one noun remained the same, thus decreasing in information value from the first to the third picture (new, moderately old, and old information). Words representing new information were produced more accurately than words representing old information. The types of errors did not differ. Further evidence of this effect was provided by an examination of the duration of new versus old word productions by 12 of the children. Productions encoding new information were consistently longer on average than those encoding old information. The results provide experimental evidence of an effect observed in adults that indicates early sensitivity to information level. However, because of the children's young age, the effects are characterized as a speaker-internal process that only serendipitously corresponds to listener needs.
Re-introduction of referents in Italian children's narratives
Authors: Orsolini Margherita , Rossi Franca , Pontecorvo Clotilde
Published: September 2008

In this study we investigate the re-introduction of referents in the Frog stories told by Italian children aged 4–10 (N = 100). We found that for every age group full nouns are the most frequent forms used for reference re-introduction. Null forms, such as clitic pronouns or person/number inflection on the verb, are the second most frequent forms. A detailed analysis of null forms shows that children of different ages exploit different properties of the verbal and non-verbal context which can make a referent predictable. Compared to preschoolers, elementary school children are more likely to use null forms when the semantic content of the verb, or the structure of the preceding text make referents inferrable. On the other hand, preschoolers tend to exploit the importance of a character in the story plot, or the visual availability of the referent in the non-verbal context, as properties that make an entity salient enough to prevent the speaker from using overt linguistic forms such as full nouns. Our study confirms results of previous research, showing that elementary school children are more competent than preschoolers in integrating the semantic content of the current utterance into the context generated by previous discourse.
Noun bias in maternal speech to one-year-olds
Authors: Goldfield Beverly A.
Published: September 2008

This study examines the distribution of nouns and verbs in maternal speech to one-year-olds. Mothers and children were videotaped during toy play and non-toy play. Nouns and verbs in maternal speech were coded for frequency, sentence position and occurrence with grammatical inflections. maternal speech was also coded for utterances that prompted the child to produce a noun or a verb. Frequency of nouns and verbs varied with context. There were more noun types and tokens during toy play, and more verb types and tokens during non-toy play. Nouns occurred more often than verbs in shorter maternal sentences, in sentence-final position, and with fewer grammatical inflections. Mothers also more often prompted their children to produce nouns. There was a significant positive correlation between frequency of noun types and tokens during toy play, and the proportion of nouns in children's first 50 words.
When is communication a ‘meeting of minds’?
Authors: Golinkoff Roberta Michnick
Published: September 2008

Do infants and young children (two-year-olds) possess an implicit theory of mind which is revealed through their communicative interactions or are they simply treating their interlocutors as objects to manipulate in service to their own material ends? Shatz & O'Reilly (1990) criticized a paper by Golinkoff (1986) for claiming that infants were attempting to communicate as opposed to simply manipulate their listeners. This paper takes exception to that argument. It reviews additional evidence which indicates that infants in the second year of life are capable of communicating for the sake of the ‘meeting of minds’. The alternative – treating young children's communications as only the firing off of conversational routines for the purpose of attaining material ends – seriously underestimates infants' knowledge of the communicative process.
Twin language or phonological disorder?
Authors: Dodd Barbara , McEvoy Sandra
Published: September 2008

The acquisition of language in the preschool years by multiple-birth children is often reported to be atypical. Some researchers have claimed that they use ‘twin language’, i.e. an autonomous language specific to a multiple-birth set. This claim was investigated by describing and comparing the phonological characteristics of the speech of 19 sets of two- to four-year-old multiple-birth children, and by measuring multiple-birth children's understanding of their twins' or triplets' context-free speech. The results indicated that multiple-birth children are prone to phonological disorder and consequently their speech is often unintelligible. Siblings' phonologies evidenced some similarities, although they were not identical. Multiple-birth children were better able to understand their siblings' mispronunciations than were other children of the same age, although that understanding was dependent on how closely the error form resembled the adult form. While these three factors conspire to give the impression that ‘twin language’ is common, none of these findings provided support for the claim that multiple-birth children use an autonomous language.
French concessive connectives and argumentation: an experimental study in eight- to ten-year-old children
Authors: Champaud Christian , Bassano Dominique
Published: September 2008

An experimental study examined the comprehension of sentences containing concessive connectives, considered from an argumentative-conclusive point of view, in eight- and ten-year-old French children (24 subjects in each age group). Two tasks were used; subjects had to choose between (1) opposite preceding contexts of sentences (context choice task), and (2) conclusions that could be drawn from the same sentences (conclusion choice task). Results indicated a clear developmental increase in performance. For all concessive items, except mais (‘but’), results of the context choice task were better than results of the conclusion choice task. Older children gave significantly better responses for mais in the conclusion choice task. The ambivalence of the connective mais is discussed; comparisons with production and crosslinguistic data are suggested.
When is a word a word?
Authors: Vihman Marilyn May , McCune Lorraine
Published: September 2008

Although adult-based words co-occur in the period of transition to speech with a variety of non-word vocalizations, little attention has been given to the formidable problem of identifying these earliest words. This paper specifies explicit, maximally ‘inclusive’ identification procedures, with criteria based on both phonetic and contextual parameters. A formal system for evaluating phonetic match is suggested, as well as a set of child-derived functional categories reflecting use in context. Analysis of word use across two samples of 10 children each, followed from 0;9 to 1;4, provides evidence to suggest that context-bound words can be ‘trained’ by focusing on eliciting language, but that the timing of context-flexible word use remains independent of such training.
Symmetries and asymmetries in early lexical comprehension and production
Authors: Harris Margaret , Yeeles Caroline , Chasin Joan , Oakley Yvonne
Published: September 2008

Six children were visited in their homes every two weeks for 18 months from the age of six months in order to observe their developing comprehension and production of words. Controlled testing of the children's developing vocabulary was also carried out to provide a more detailed picture of the precise context in which a word was understood or produced. The results showed both similarities and individual differences among the children in patterns of early comprehension. For all six children there was a very close relationship between early production and comprehension of words: words that were contextually flexible in production tended also to be so in comprehension and words that were context-bound also tended to be so in both modalities although there was some evidence that the two types of word differed in the extent to which comprehension preceded production. All children were also similar in showing evidence of contextually flexible comprehension very early on. However, there were individual differences both in the rate at which comprehension developed and in the lag between comprehension and production. The significance of this pattern of development for accounts of lexical development is explored.
Conceptual perspective-taking and children's interpretation of pronouns in reported speech
Authors: Smyth Ron
Published: September 2008

This study examines the role of cognitive development in children's use of pragmatic cues for anaphora resolution. Reported speech sentences likeMinnie told Dorothy that she knew Supermanare biased toward the matrix subject. This bias is claimed to depend on two conceptual shifts, first to the speaker's and then to the listener's perspective. 141 children aged 5;0–8;0 performed two tasks with biased and neutral sentences. In the Verbal task, they gave antecedent choices in response to a question (e.g.…that WHO knew Superman?). In the Puppet task, which prompts the perspective shift, they made a puppet say the reported speech portion (e.g.I/you know Superman). Violations of the pragmatic constraint decreased with age and task, consistent with the perspective-shift model. Parallel function effects in neutral sentences were weaker than in previous research on conjoined sentences, but similar to recent results for adults with these materials.
The cultural basis of prosodic modifications to infants and children: a response to Fernald's universalist theory
Authors: Ingram David
Published: September 2008

Fernald and her colleagues have argued for the universality of prosodic modifications in speech addressed to infants (e.g. Fernald, 1987; Fernald, Taeschner, Dunn, Papousek, de Boysson-Bardies & Fukui, 1989). An alternative proposal in Bernstein-Ratner & Pye (1984) and Pye (1986) argues that speech modifications to children are the result of a set of conventions that may vary from culture to culture. This note presents arguments against Fernald and in support of the cultural account of prosodic modifications to infants and children. First, in response to criticisms in Fernaldet al., data are presented which defend the conclusion in Bernstein-Ratner & Pye that Quiché mothers show less prosodic modification to children than do mothers in other cultures studied to date. Second, data used to support the universal position in Fernald (1987) on adult identification of infant affective states are reinterpreted and shown to be equally interpretable as the result of a set of culturally transmitted rules.