bluuebunny/crossref_metadata_2025 huggingface dataset:
The defective tense hypothesis: on the emergence of tense and aspect in child Polish
Authors: Weist Richard M. , Wysocka Hanna , Witkowska-Stadnik Katarzyna , Buczowska Ewa , Konieczna Emilia
Published: September 2008

Longitudinal and cross-sectional designs were combined in this analysis of the evolution of children's capacity to represent deictic relationships. The longitudinal component contained the naturalistic observation of three relatively young children (1; 7–1; 9) and three somewhat older children (2; 0–2; 2). These children were tape-recorded in caretaker–child interactions. The analysis of the corpora from these children revealed: (1) imperfective activity verb phrases in the past tense, (2) telic verb phrases in the past tense used independently of resulting states, (3) moderately remote past references, and (4) deictic future references. The cross-sectional component contained an experiment in which elicitation procedures were used to obtain past and future references to atelic and telic situations. Nine 2½- and nine 3½-year-old children were tested. Generally high levels of performance reinforced the outcome of the longitudinal analysis.
Learning to in complement constructions
Authors: Bloom Lois , Tackeff Jo , Lahey Margaret
Published: September 2008

The acquisition of to in infinitive complement structure was examined in the spontaneous speech data from four children, who were observed longitudinally from two to three years of age. The children learned to as a complementizer connective in the context of a small group of verbs and other matrix forms that take a verb phrase complement. They did not learn to in the context of the complement verbs to mark the infinitive. Secondly, the children learned to with the meaning ‘direction towards’ and not as a meaningless syntactic marker. These results contribute to understanding the relation between the acquisition of complex syntax and the verb system in child language, and to evaluating traditional and contemporary linguistic theories of infinitive complement structure in English.
Learning about points of view: spatial perspective and the acquisition of ‘I/you’
Authors: Loveland Katherine A.
Published: September 2008

A cross-sectional and a longitudinal study of 2-year-old children was performed to investigate the developmental relationship between understanding differences in spatial point of view and correct comprehension and production of I/you pronouns. In Study I only those children who demonstrated understanding that individuals' points of view can differ had begun to master speaker's point of view, as shown by correct use of some of the pronouns. Only children with complete understanding of points of view were able to use all I/you pronouns without errors. In Study 11 no child used the set of I/you pronouns without errors until s/he had complete understanding of points of view. Across children, a given pronoun tended not to be free of errors until the child understood that points of view can differ. Results are interpreted to support the hypothesis that understanding spatial points of view is a cognitive prerequisite to understanding speaker's point of view, which governs the pragmatics of 11 you pronouns.
Patterns of vowel modification in mother–child speech
Authors: Ratner Nan Bernstein
Published: September 2008

Patterns of vowel articulation in conversational speech to an adult and to child listeners were analysed in the speech of nine mothers. Formant frequency analysis of vowels embedded in 2,406 words found in varying syntactic environments and uttered by women to pre-verbal, holophrastic and more advanced child listeners (MLUs 2·5–4·0) revealed an emerging pattern of content word clarification, as measured by wider dispersion and decreased overlap between vowel phoneme categories in formant characteristics. Additionally, function word clarification was noted in speech to the oldest children. Vowel production appears to be modulated by child–addressee language ability. Earlier studies suggesting a lack of phonetic clarification in mother–child speech may have investigated speech to children too mature to elicit maternal clarification behaviours.
Learning how to ask: patterns of inversion in yes–no and wh-questions
Authors: Erreich Anne
Published: September 2008

This study attempts to determine whether subject–auxiliary inversion occurs in yes–no questions before wh-questions and whether non-inversion errors (when daddy will come home?) are a characteristic feature of the acquisition of wh-questions. The data consist of the yes–no and wh-questions of 18 children, aged 2;5 to 3;0 with an mlu range of 2.66–4.26. Findings do not support previous claims that inversion is acquired in yes–no questions before wh-questions. Rather, a significant number of children were found to use an optional inversion rule in both question types. This fact appears to account for the finding that non-inversion errors are a characteristic feature of the acquisition of wh-questions.
Attentional priority of the agent in the acquisition of word reference
Authors: Grace Janet , Suci George J.
Published: September 2008

The role of agent priority in event perception in word acquisition was investigated using 24 infants at the one-word stage of language production. Nonsense words were presented in narrations referring to agent, recipient or stationary nonsense puppet-actors in filmed events. The nonsense stimuli along with a sense word referring to a sense puppet were presented in a habituation series. Word acquisition was measured by the extent of response recovery to an incorrect pairing of a nonsense word with a sense referent, and by the number of infants accurately choosing named puppets. Both measures were significantly greater for puppets in agent roles than for other puppets. A speech modification condition (exaggerated intonation with repetition) held attention longer but did not facilitate acquisition.
How the young French child avoids the pre-voicing problem for word-initial voiced stops
Authors: Allen George D.
Published: September 2008

Macken & Barton (1980) noted an asymmetry in their young Spanish-learning children's word-initial stop productions, as compared with English-learning children's, namely, ‘the Spanish-learning children acquire “lead” voicing…after age four’, whereas ‘English-learning children acquire “long lag” stops…by about 2;6’. ‘One possible explanation’, they propose, ‘is that lead voicing is inherently difficult to produce or at least more difficult to learn than long lag…’. The purpose of this Note is to present data suggesting that young children learning French, which also employs phonetically pre-voiced stops for its phonemically voiced category, also show an asymmetry in their word-initial stop productions. Furthermore, this asymmetry supports the notion, proposed by Macken & Barton, that lead voicing is somehow ‘more difficult’ for these young children to learn to produce. However, the actual ‘strategy’ used by the French-learning children to circumvent this presumed difficulty is different from that used by Macken & Barton's Spanish-learning children. This difference supports the notion that children have a certain degree of latitude in finding their way through the maze of psycholinguistic development (Kiparsky & Menn 1977).
The semantic focus of maternal speech: a comment on Ninio & Bruner (1978)
Authors: Goddard M. , Durkin K. , Rutter D. R.
Published: September 2008

Ninio & Bruner (1978) added an important dimension to the study of early lexical acquisition by drawing attention to the dialogue-like nature of the mother-child interactions where presumably much language-learning takes place. The authors pointed to the well-established findings that much of the child's early speech consists of names for people and objects (Leopold 1949, Werner & Kaplan 1963, Nelson 1973, Greenfield & Smith 1976). They went on to show that in one familiar type of parent–child interaction, joint picture-book reading, labels are used extensively by the adult and are inserted skilfully into a structured interactional sequence that has the texture of a dialogue (Ninio & Bruner 1978: 6). This dialogue, they suggested, ‘seems… to be a format well suited to the teaching of labelling’ (1978: 12). Subsequent research has also been interpreted as pointing to the teaching potential of joint picture-book reading (Wheeler 1983, Ninio 1983) and the opportunities it affords for situation-specific routines (Snow & Goldfield 1983).
The child language data exchange system
Authors: MacWhinney Brian , Snow Catherine
Published: September 2008

The study of language acquisition underwent a major revolution in the late 1950s as a result of the dissemination of technology permitting high-quality tape-recording of children in the family setting. This new technology led to major breakthroughs in the quality of both data and theory. The field is now at the threshold of a possible second major breakthrough stimulated by the dissemination of personal computing. Researchers are now able to transcribe tape-recorded data into computer files. With this new medium it is easy to conduct global searches for word combinations across collections of files. It is also possible to enter new codings of the basic text line. Because of the speed and accuracy with which computer files can be copied, it is now much easier to share data between researchers. To foster this sharing of computerized data, a group of child language researchers has established the Child Language Data Exchange System (CHILDES). This article details the formation of the CHILDES, the governance of the system, the nature of the database, the shape of the coding conventions, and the types of computer programs being developed.
‘He has too much hard questions’: the acquisition of the linguistic mass–count distinction in much and many
Authors: Gathercole Virginia C.
Published: September 2008

Subjects aged 3;6–9;0 were asked to judge sentences in which much and many modified prototypical and non-prototypical mass and count nouns, and to correct those sentences judged to be deviant. The experimental results indicate that children do not approach the co-occurrence conditions of much and many with various nouns from a semantic point of view, but rather from a morphosyntactic or surface-distributional one. Children learn the proper form that the noun must take in these constructions before they learn the proper choice of quantifier. In addition, they reserve many for use with plural count nouns long before they learn that much is restricted in direct noun modification to use with singular mass nouns.
How does comprehension of passives develop? A comparison of actional and experiential verbs
Authors: Sudhalter Vicki , Braine Martin D. S.
Published: September 2008

Experiment I required first, third, and sixth graders to identify the actor or experiencer from active and passive sentences with actional and three subclasses of experiential verbs. Actional passives were understood better than experientials, with no difference among the subcategories of experiential verbs, and no effect of verb frequency or regularity. Response distributions for each verb type did not show two populations of subjects – one knowing and the other not knowing the passive – but approximately unimodal distributions whose mean increased with age. Experiment II studied preschoolers. Again, the actional passives were systematically easier than the experientials, and again, for neither verb type did the response distributions show two distinct subject populations, one competent and the other incompetent. The forms of the distributions cannot be wholly accounted for by fluctuating attention to cues to passivization, but indicate that many children have partial knowledge of the passive (increasing with age). A hypothesis about the nature of this partial knowledge accounts for the gradual acquisition and the difference between the verb types.
Vocalizations of one-year-olds
Authors: Kent Ray D. , Bauer Harold R.
Published: September 2008

Mother–infant interactions were recorded for five dyads in a home environment. This report describes the vocalizations produced when the infants were 13 months old. Data are reported on syllable structure, phonetic properties of vowel-like and consonant-like segments, intonation contours and peak f0 values for individual syllables. In general, the acoustic–phonetic properties of the 13-month-olds' vocalizations were consistent with data reported in other studies for younger and older children. Hence, the results are seen as evidence for an overall continuity in early phonetic development.
Acoustic analysis of words produced by a child from 46 to 149 weeks
Authors: Mack Molly , Lieberman Philip
Published: September 2008

We undertook a detailed computer-implemented acoustic analysis of the speech of a child from 46 to 149 weeks. We measured overall word duration and pitch perturbation (a measure of task-induced stress), in addition to measuring within-word phonetic segments. Results revealed that (1) there were strong age-dependent decreases in word duration but only at a relatively late stage (75–149 weeks); (2) degree of fluency was not correlated with vocal stress; (3) certain segments (i.e. /k/ and /æ/) increased greatly in duration, contributing to the absence of an overall word-duration decrease at an earlier stage (46–79 weeks) and revealing the child's ability to approximate adult-like phonetic norms. Relevance to theories of phonetic development and language change are discussed.
Learning how to use verbs: lexical coding and the influence of the input
Authors: De Villiers Jill G.
Published: September 2008

Samples of spontaneous speech from two young children and their mothers were analysed to examine how children learn some of the inflectional/syntactic possibilities for individual verbs. Multiple regression analyses were performed to establish predictors of the children's range of grammatical use of particular verbs. Maternal variety of use proved to be a highly significant predictor of the children's use of the same verbs, but maternal frequency was not a significant predictor of children's use. Step-wise regression analyses revealed that each child's own mother's use was a significantly better predictor of the child's use than that of the unacquainted mother. It is argued that the children were monitoring the grammatical patterns of use of individual verbs in the input they received. The extent of novel use of verbs by the child cannot be assessed from these data, and awaits further experimental investigation.
Some possible causes of children's early word overextensions
Authors: Hoek Dorothy , Ingram David , Gibson Deborah
Published: September 2008

One child's lexical development was followed from 1; 1 to 1; 7 to look for possible causes of early word overextensions. Lexical acquisition was observed for comprehension and production through the use of a parental diary and systematic language sampling. In addition, 16 nonsense words were taught in 10 experimental sessions over a two-month period to control for phonological effects. The results isolated six distinct factors behind early word overextensions. It is concluded that overextensions should not constitute the primary data for the construction of theories of semantic acquisition.
Object permanence and relational words: a lexical training study
Authors: Tomasello Michael , Farrar Michael Jeffrey
Published: September 2008

Observational/correlational research has established that children in stage 5 object permanence development use words that refer to the visible movement of objects, while it is not until stage 6 that they use words referring to the invisible movement of objects (e.g. gone). It is not clear, however, whether the cognitive competence evidenced by performance in the object permanence task is a prerequisite for these linguistic productions or whether they both emerge simultaneously from some underlying representation. The current study used a lexical training paradigm to teach object words, visible movement words, and invisible movement words to children at stage 5 and stage 6 object permanence development. Stage 6 children learned all three types of words equally well. Stage 5 children learned object and visible movement words, especially in comprehension, but did not learn the invisible movement word. These results indicate that the cognitive structures underlying performance in the object permanence task are genuine prerequisites for learning these types of words.
Context effects on lexical specificity in maternal and child discourse
Authors: Lucariello Joan , Nelson Katherine
Published: September 2008

Mother–child (two-year-old) object labelling was studied in three natural discourse settings: (1) routine, caretaking; (2) free play; and (3) novel. Object labelling was found to be considerably more varied in these natural discourse settings than in experimental situations. While basic level tokens predominated in the free play context, they were significantly less prevalent in the routine and novel contexts. Additionally, subordinate level term usage was more common in the routine and novel contexts. The relation between mother and child labelling was also investigated and results indicated that context may be more important in determining level of labels than maternal modelling. Analyses of the discourse uses of non-basic level terms revealed that mothers were organizing the social-interactive context in ways that may facilitate child category formation.
The acquisition of the present perfect: explaining differences in the speech of Scottish and American children
Authors: Gathercole Virginia C.
Published: September 2008

This study assesses the role of frequency of input in the acquisition of the present perfect by Scottish and American children. Two questions were addressed: (1) Do adults speaking Scottish English use the present perfect more frequently in speech to children than those speaking American English? (2) If there is a difference in the frequency of input, how does this affect the course of development of this structure in the language of Scottish vs. American children? Cross-sectional data were collected from 12 Scottish and 12 American children aged 3; 0 to 6; 4 and from adults interacting with them in naturalistic settings. The data led to the conclusions that (1) Scottish adults use the present perfect construction in their speech to children much more frequently than American adults do; (2) Scottish children use the present perfect construction in their speech long before their American counterparts; and (3) frequency of input does play a major role in the timing and order of acquisition of the present perfect. However, its role appears to be an interactive one, in which it conspires with factors such as semantic, syntactic, and cognitive simplicity to make some forms easier to learn than others.
The acquisition of the voicing contrast in Thai: a study of voice onset time in word-initial stop consonants
Authors: Gandour Jack , Petty Soranee Holasuit , Dardarananda Rochana , Dechongkit Sumalee , Mukngoen Sunee
Published: September 2008

This paper reports on a cross-sectional acoustical investigation of the development of the voicing contrast in Thai word-initial stops. Voice onset time (VOT) productions associated with three bilabial stops (/b p ph/), three alveolar stops (/d t th/), and two velar stops (/k kh/) were measured in seven 3-year-old children, seven 5-year-old children, seven 7-year-old children, and seven adults. Within each age group, differences in mean VOT between homorganic stop consonants indicated that 3-year-olds have acquired all voicing contrasts except /b/ vs. /p/ and /d/ vs. /t/. By age five, children have acquired all voicing contrasts. However, as measured by differences in mean VOT across age groups, 5-year-olds still do not produce /b/ or/d/ in an adult-like manner. Issues concerning the order of acquisition and nature of development of stop consonants are discussed.
The use of ‘left’ and ‘right’ in speech: the development of listener-specific skills
Authors: Waller Glenn
Published: September 2008

Two experiments are reported, where the development of pragmatic communication skills was assessed in a simple but realistic setting, so that even the youngest speakers could construct consistently accurate messages. It was shown that children of up to six years are specifically hampered by the speaker's use of left and right, but not by the use of named landmarks. Children were also allowed to create their own messages. The ability of the speaker to use language which would be valuable to a particular listener could then be measured. The results show a development between six and seven years in speakers' ability to select and use linguistic forms which are appropriate to listeners' receptive skills, though speakers could use objectively accurate information at an earlier age.
Semantic and pragmatic uses of ‘but’
Authors: Peterson Carole
Published: September 2008

All uses of the connective but by narrating children 3; 6 to 9; 6 were classified as having primarily semantic function, pragmatic function, or as errors. The youngest children make the majority of errors, mistakenly using but when causal or precausal relationships exist. All children most commonly use but to signal semantic relationships such as semantic opposition or violation of expectation, although the oldest children use but proportionately more to encode more complex contrasts. However, children at all ages also use but for primarily pragmatic functions, to interrupt the flow of their narrative in order to insert relevant comments, monitor the listener's attention, or change topic. If discourse can be conceptualized as having multiple levels, but signals a change in level within a speaker's turn.
Is early pragmatic development measurable?
Authors: Dale Philip S.
Published: September 2008

Measures of pragmatic development for children in the second year of life were developed, based on a brief (30 minute) language sample and on structured elicitation conditions. When age is partialled out, number of pragmatic functions expressed is not statistically related to MLU, due to the fact that the number of functions grows steadily during the one-word and very early two-word phases. Performance on the structured imperative tasks also reflects development during this period, though performance on the declarative tasks does not. We conclude that the range of pragmatic functions in the second year is measurable and contributes information not provided by a measure of syntactic development such as MLU. Such information should prove useful for research on language and cognition in normal and language-impaired children.
The acquisition of the voicing contrast in English: a study of voice onset time in word-initial stop consonants
Authors: Macken Marlys A. , Barton David
Published: September 2008

This paper reports on a longitudinal study of the acquisition of the voicing contrast in American English word-initial stop consonants, as measured by voice onset time. Four monolingual children were recorded at two-week intervals, beginning when the children were about 1; 6. Data provide evidence for three general stages: (1) the child has no contrast; (2) the child has a contrast but one that falls within the adult perceptual boundaries of one (usually voiced) phoneme and thus is presumably not perceptible to adults; and (3) the child has a contrast that resembles the adult contrast. The rate and nature of the developmental process are discussed in relation to two competing models for phonological acquisition and two hypotheses regarding the skills being learned.
Relationships between parental input frequencies and children's language acquisition: a reanalysis of Brown's data
Authors: Moerk Ernst L.
Published: September 2008

To evaluate Brown's assertion that frequency of input is not a significant variable in language acquisition, some of Brown's data were reanalysed. The data pertaining to Adam, Eve, Sarah and their parents were predominantly obtained from Brown's (1973) book and were supplemented from the transcripts. Parental input frequency and the children's age at mastery were highly related for each of the three triads. Then Sarah's input and rate of language acquisition were compared with that of the other two children. The correlation between Sarah's relative input deprivation and her relative linguistic delay was 0·66. Finally, an analysis of Eve's acquisition of specific prepositional phrases involving the preposition in were made. Again it was found that frequency of input was highly related to frequency of production. Detailed analyses of parent-child interactions provided evidence also for short-term effects of input frequency.
‘Mommy sock’: the child's understanding of possession as expressed in two-noun phrases
Authors: Golinkoff Roberta Michnick , Markessini Joan
Published: September 2008

Thirty children with a mean length of utterance ranging from 1·00 to 4 and an age range of 1; 7 to 5; 5 were tested by their own mothers for comprehension of two-noun possessive phrases such as mommy's shoe. Three types of possessive relationships (alienable, intrinsic and reciprocal) in addition to anomalous possessive phrases were used to uncover children's knowledge of the semantics and syntax of English possession. Results indicated, first, that even young children may have detailed notions of which objects are likely to serve as possessors and which as possessions, and second, that word order may not be used to comprehepossessive phrases until considerable linguistic development has occurred.
The role of speech discrimination in developmental sound substitutions
Authors: Eilers Rebecca E. , Oller D. Kimbrough
Published: September 2008

Fourteen two-year-olds (M=2; o) were presented with minimal word pairs in a new and highly efficient experimental perception paradigm. The data provide a preliminary view of the relative difficulty of various minimal phonological contrasts for children. The study specifically focuses on perception of some phonological contrasts which usually are actualized and some which usually are not actualized in two-year-old child productions. The data suggest that perceptual difficulties probably play a substantial role in some childhood speech errors, but little, if any, role in others.
The acquisition of the passive voice
Authors: Baldie Brian J.
Published: September 2008

The study was aimed at determining the average ages at which children imitate (I), produce (P) and comprehend (C) passive constructions. The results were compared with those obtained from partial studies of the acquisition of the passive voice conducted by researchers such as Fraser, Bellugi & Brown (1963). The finding that imitation precedes comprehension which in turn precedes production (I > C > P), as reported by Fraser et al. (1963) for 12 three-year-olds, is confirmed in this study for children from 3; 0 to 8; 0. The ability to use the passive voice in various tasks was found to be generally greater than that suggested in previous studies.
Stages of egocentrism in children's use of ‘this’ and ‘that’: a different point of view
Authors: Webb Pamela A. , Abrahamson Adele A.
Published: September 2008

Acquisition of the words this and thatwas tested by a comprehension and a production task with children of ages 4 and 7. In the comprehension task, children had to choose one of two toys requested by the experimenter. Child and experimenter were seated either side by side or facing one another. It was expected that children would first learn the spatial contrast between the two words and then learn to apply it from the speaker's point of view, according to developmental stages similar to those found in other studies of spatial non-egocentrism. The prediction was confirmed, but comparison with the results of de Villiers & de Villiers (1974) suggests an alternative theoretical analysis, in which non-egocentrism is not necessary for correct use of this and that. A second prediction, that performance would be better on the unmarked word that, was not confirmed for the side-by-side condition. In the production task, only 2 of the 60 children violated the restriction that this can refer only to near objects.
Comprehension and production of adjectives and seriation
Authors: Ehri Linnea C.
Published: September 2008

To explore adjective language development and to examine its relationship to seriation, several tasks were given to 40 children aged 4;0 to 8;0. Comprehension and production of various adjective forms were measured: vocabulary, coordination, comparison. The ability to order objects by size was used to assess intuitive-level seriation. In addition to yielding information about children's meanings and use of adjective forms, results indicated that vocabulary and comprehension were more important than language production for distinguishing senators from non-senators. The relevance of findings for Sinclair de Zwart's observations and for the Clarks' hypotheses about adjective development is discussed.
Language development as related to stage 6 object permanence development
Authors: Corrigan Roberta
Published: September 2008

A longitudinal study of three children examined the relation between object permanence and language development. Unlike other studies, an independent measure of object permanence development was provided. While there was not a one-to-one correspondence between object permanence and language, there were relations at certain points in development. There was a rough relationship between the onset of stage 6 of object permanence and the onset of single-word utterances. Total vocabulary showed a large increase around the time of entrance into the preoperational period of object permanence development. At the same time, the semantic categories Nonexistence and Recurrence appeared. No differences were found in the use of function forms and substantive forms before object permanence development.
Tone acquisition in Cantonese: a longitudinal case study
Authors: Tse John Kwock-Ping
Published: September 2008

There have been relatively few studies on tone acquisition, as compared to studies on the acquisition of segmentals, morphology, and syntax. Still fewer are the studies on Chinese language acquisition. The present paper reports on a longitudinal case study of a Cantonese-speaking child aged 2; 8 and considers the implications of tone acquisition for tone studies in general, and Cantonese tonology in particular.
Preschool children's intraconversational narratives
Authors: Umiker-Sebeok D. Jean
Published: September 2008

Analysis of narratives produced spontaneously within natural conversation by children from three to five years of age found age-related increases in length, number, variety, compression, and complexity of six story elements, remoteness of narrated events, and number and variety of intra- and post-narrative listener responses made to them. These and other changes indicate a considerable growth from three to five in the amount and sophistication of information furnished by preschool narrators, particularly between three and four years, as well as in the motivation of the stories with respect to the overall conversational discourse.
Social class differences and the identification of sex in children's speech
Authors: Edwards John R.
Published: September 2008

Judges were asked to identify the sex of prepubertal children by listening to their tape-recorded voices. More incorrect guesses were made of working class girls than of their male counterparts. For middle-class children, however, the pattern was reversed, with more boys being misidentified as girls than the opposite. These findings are related to work demonstrating an association between masculinity and working-class speech, and to the ‘covert prestige’ attaching to such speech as a result. Some practical implications of the results for researchers in the field of child language are also discussed.
‘What says meow?’. The role of context and linguistic experience in very young children's responses to what-questions
Authors: Allen Rhianon , Shatz Marilyn
Published: September 2008

Children aged 1; 4 to 1; 6 were asked common what/-questions under four different contextual conditions. The presence of a gesture was found to have a significant effect on the nonverbal components of children's responses, while linguistic sophistication and type of question asked affected vocal responses, but did not produce any consistent effects on nonverbal responses. Results are interpreted as suggesting that, at this early age, gestural information is processed relatively independently of speech. These findings cast doubt on the likelihood that maternal gestures facilitate early language responding. Case-study observations of the children's interactional behaviour with mothers suggest instead that prior experience with verbal routines was a factor in the children's experimental vocal performance.
‘Do what I mean, not what I say!’. Changes in mothers' action-directives to young children
Authors: Schneiderman Maita H.
Published: September 2008

This study investigated mothers' notions of appropriate speech to 40 children aged 1; 6 to 3; 6. Spontaneous maternal action-directives were analysed in terms of the explicitness with which they expressed syntactic and lexical clues to action-directive intentions. Cross-sectional and longitudinal changes, and progressions within maternal repetition sequences, indicated that the children perceived as most limited in inferential skills elicited the most restricted input. Most of the action-directives they heard could be interpreted non-inferentially, because syntactic and lexical clues to intentions were explicitly expressed. External supports were removed gradually in response to the mother's perception of her child's increasing ability to draw extra-linguistic inferences. Several theoretical models of non-literal speech-act comprehension are supported. It is argued that the differences in language use reflect the mother's notions of the speech a listener is likely to understand.
Error assimilation as a mechanism in language learning
Authors: Platt Carole Butler , MacWhinney Brian
Published: September 2008

The present study tests the hypothesis that many of the grammatical errors that occur during the course of language development can serve as ‘auto-input’ leading directly to the acquisition of new expressive forms. A free-speech corpus of grammatically incorrect sentences was gathered from each of 4 four-year-old subjects. Three additional sets of sentences were constructed: sentences containing errors similar to those actually produced, sentences containing ‘baby errors’ and correct sentences. The children were asked to judge these sentences as correct or incorrect. Significantly fewer corrections were made in the sentences with subject-generated errors than in the sentences with similar errors or ‘baby errors’. These results can be explained by assuming that children learn their own errors.
More negative findings for positive prepositions
Authors: Abkarian G. G.
Published: September 2008

Three- and four-year-old children were tested on their comprehension of the locative prepositions in front of, in back of, ahead of, and behind. Results demonstrated that those prepositions characterized as positive by H. Clark (1973) were, contrary to theoretical predictions, comprehended more poorly than their ostensibly negative counterparts. Discussion of the possible reasons for these findings is included.
Phonological constraints on the emergence of two-word utterances
Authors: Donahue Mavis
Published: September 2008

Considerable interest has been generated concerning linguistic and cognitive factors influencing the onset of early combinatorial speech. The present diary study provides evidence that, for some children, the transition between the single-word and two-word stages may be governed by phonological constraints. The presence of a phonological selection strategy and consonant harmony rule in one child's developing phonological system is described. Evidence is presented suggesting that this consonant harmony constraint operated across morpheme boundaries. This had the effect not only of delaying the onset of two-word utterances, but also of influencing the selection of words that could occur in word combinations. The implications of these findings for explaining individual variation in the transition from single-word to combinatorial speech are discussed.
Belief and quantity: three-year olds' adaptation to listener's knowledge
Authors: Perner Josef , Leekam Susan R.
Published: September 2008

Two groups of 3-year-old children (3:0–3;6 and 3;6–4;0) observed two actions of a toy. In one condition an older partner was absent while the subject watched both of the toy actions (fully ignorant partner), whereas in the other condition the partner witnessed one of the two actions together with the subject (partially ignorant partner). When asked about the toy's actions by their partially ignorant partner both age groups adjusted their answers to their partner's ignorance and mentioned only that action which was new to their partner. However, in their answers to their fully ignorant partner the younger children tended to provide insufficient information by mentioning only one instead of both actions.
Directionality preferences in the interpretation of anaphora: data from Korean and Japanese
Authors: O'Grady William , Suzuki-Wei Yoshiko , Cho Sook Whan
Published: September 2008

Recent work by Lust and others has led to the prediction that children acquiring left-branching languages will exhibit a preference for backward patterns of anaphora. In this paper, we test this prediction against data from Korean and Japanese and show it to be false. An alternative hypothesis proposing a preference for forward patterns of anaphora is outlined and possible explanations for earlier experimental results supporting Lust's prediction are considered.
Lexical acquisition and acquisition of initial voiceless stops
Authors: Tyler Ann A. , Edwards Mary Louise
Published: September 2008

The interaction between lexical acquisition and acquisition of initial voiceless stops was studied in two normally developing children, aged 1;9 and 1;10, by acoustically examining the token-by-token accuracy of initial voiceless stop targets in different lexical items. Production accuracy was also examined as it related to the frequency of usage of different words, as well as the time when they entered the children's lexicons. Fewer than half of the words in the children's lexicons had tokens representing the emergence of accurate voiceless stop production prior to the session at which the voicing contrast was achieved. These words were primarily ‘old’ words that had been in the children's lexicons from the beginning of data collection, as opposed to ‘new’ words, first produced in later recording sessions. Findings are discussed in reference to the ‘lexical diffusion’ model of sound change and within the framework of nonlinear underspecification theory.
Issues in the acquisition of the Sesotho tonal system
Authors: Demuth Katherine
Published: September 2008

This paper examines the acquisition of the grammatical tone system of Sesotho, a southern Bantu language where tone sandhi is rich, and where surface and underlying representations are often quite distinct. Results of the longitudinal case study show that rule-assigned tone on subject markers is generally marked appropriately by age two. In contrast, underlying tonal representations on verb roots are learned gradually over time, showing an early Default High tone pattern. The study also finds that, while some tone sandhi rules are in the process of being acquired between 2;6 and 3;0, problems in the mapping between tonal representations and segments persist. The paper raises methodological and theoretical issues not only for the acquisition of tonal systems, but for the acquisition of phonology in general.
The relation of maternal language to variation in rate and style of language acquisition
Authors: Hampson June , Nelson Katherine
Published: September 2008

The main thrust of this paper is to question whether in earlier studies the ‘motherese hypothesis’ has been adequately tested. The present study first explores concurrent relations between maternal and child language at an early age, using the Soyder, Bates & Bretherton (1981) questionnaire to assess vocabulary at 1;1. With a large sample of 45 subjects, videotaped at 1;1 and 1;8, it was possible to analyse earlier talkers separately from later talkers. The results indicate pre-existing differences between the mothers of earlier and later talkers as early as 1;1 – some 5 months before other studies have examined the possible facilitative effects of ‘motherese’. Secondly, and perhaps more importantly, when the sample was divided according to stylistic preference at 1;8, several associations between maternal language at 1;1 and MLU at 1;8 emerged for the non-expressive group which were non-existent for the expressive group. These results imply that earlier studies may have been looking for the effectiveness of maternal input too late. Moreover, it may continue to be difficult to demonstrate consistent effects of child-directed speech as long as researchers continue to ignore individual differences in style of language acquisition.
Infants' ability to consult the speaker for clues to word reference
Authors: Baldwin Dare A.
Published: September 2008

This research examines whether infants actively seek information from a speaker regarding the referent of the speaker's utterance. Forty-eight infants (in three age groups: 1;2–1;3, 1;4–1;5, and 1;6–1;7) heard novel labels for novel objects in two situations: follow-in labelling (the experimenter looked at and labelled the toy of the infant's focus) vs. discrepant labelling (the experimenter looked at and labelled a different toy than that of the infant's focus). Subsequently, half of the infants were asked comprehension questions (e.g. ‘Where's the peri?’). The other half were asked preference questions (e.g. ‘Where's the one you like?’), to ensure that their comprehension performance was not merely the result of preferential responding. The comprehension results revealed developmental change in both (a) infants' ability to establish new word-object mappings (infants aged 1;2–1;3 failed to establish stable word-object links even in follow-in labelling), and (b) infants' ability to pinpoint the correct referent during discrepant labelling (only infants aged 1;6–1;7 succeeded). Thus the period between 1;2 and 1;7 represents a time of change in infants' ability to establish new word-object mappings: infants are becoming increasingly adept at acquiring new labels under minimal learning conditions.
Phonological and morphological analysis skills in young children
Authors: Smith-Lock Karen M. , Rubin Hyla
Published: September 2008

Twenty-two normally developing five-year-olds were asked to judge, identify, repair and explain phonological and morphological errors. All of the errors involved the addition, substitution or omission of a single phoneme, which in the morphological task, was also an inflectional morpheme. Stimuli were controlled for type of error (omission, addition, substitution), location of the error (word final) and word status of the resulting error (word, non-word). Children performed significantly better on the phonological task than on the morphological task. It is proposed that the results are due to differences in the type and location of linguistic information to be analysed and to differences in memory demands in the tasks.
Joint picture-book reading correlates of early oral language skill
Authors: Debaryshe Barbara D.
Published: September 2008

The purpose of this study was to explore the relation between joint picture-book-reading experiences provided in the home and children's early oral language skills. Subjects were 41 two-year-old children and their mothers. Measures included maternal report of the age at which she began to read to the child, the frequency of home reading sessions, the number of stories read per week, and the frequency of visits by the child to the local library. Measures of language skill used were the child's receptive and expressive scores on the revised Reynell Developmental Language Scales. Multiple regression analyses indicated that picture-book reading exposure was more strongly related to receptive than to expressive language. Age of onset of home reading routines was the most important predictor of oral language skills. Directions of effect, the importance of parental beliefs as determinants of home reading practices, and the possible existence of a threshold level for reading frequency are discussed.
Early phonological and lexical development and otitis media: a diary study
Authors: Donahue Mavis L.
Published: September 2008

This diary study describes early phonological and lexical development in a child with chronic otitis media with effusion. Equipped with the tools of a referential/analytic language-learner, the child solved the problem of reduced and fluctuating auditory input with phonological selection and avoidance strategies that capitalized on prosodie cues. This ‘tone-language’ approach resulted in a lexical inventory that would be categorized as an extreme expressive style. Having ‘boot-strapped’ her lexical learning, the child continued to rely on phonological constraints and selection strategies to fuel lexical and syntactic growth, i.e. cross-domain interactions leading to a vocabulary spurt and the onset of two-word utterances. These findings illustrate the need to consider interactions among performance, input and linguistic constraints in order to explain individual variation in language learning.
Vowel dominance in overregularizations
Authors: Stemberger Joseph Paul
Published: September 2008

When children produce regularizations likecomed, not all verbs are equally likely to be regularized. Several variables (e.g. lexical frequency) have been shown to be relevant, but not all the variability between verbs is understood. It is argued here that one predictor is which vowels are present in the base form vs. the past tense form. Using a notion of recessive vs. dominant vowel (where recessive vowels are more likely to be replaced by dominant vowels than vice versa) based on adult phonological processing, it is predicted that regularizations should be likely when the base vowel is dominant and unlikely when the past tense vowel is dominant. Data from 17 children reported in the literature, aged 1;6–5;6, show that this prediction is correct. Implications for the role of phonological variables in the processing of irregular past tense forms are discussed.
Early lexical development in Spanish-speaking infants and toddlers
Authors: Jackson-Maldonado Donna , Thal Donna , Marchman Virginia , Bates Elizabeth , Gutierrez-Clellen Vera
Published: September 2008

This paper describes the early lexical development of a group of 328 normal Spanish-speaking children aged 0;8 to 2;7. First the development and structure of a new parent report instrument,Inventario del Desarollo de Habilidades Communcativasis described. Then five studies carried out with the instrument are presented. In the first study vocabulary development of Spanish-speaking infants and toddlers is compared to that of English-speaking infants and toddlers. The English data were gathered using a comparable parental report, theMacArthur Communicative Development Inventories. In the second study the general characteristics of Spanish language acquisition, and the effects of various demographic factors on that process, are examined. Study 3 examines the differential effects of three methods of collecting the data (mail-in, personal interview, and clinic waiting room administration). Studies 4 and 5 document the reliability and validity of the instrument. Results show that the trajectories of development are very similar for Spanish-and English-speaking children in this age range, that children from varying social groups develop similarly, and that mail-in and personal interview administration techniques produce comparable results. Inventories administered in a medical clinic waiting room, on the otherhand, produced lower estimates of toddler vocabulary than the other two models.