This study compares lexical development in a sample of 25 simultaneous bilingual and 35 monolingual children for whom semilongitudinal data were collected between the ages 8 30 months. A standardized parent report form, MacArthur Communicative Development Inventory (1989), was used to assess children's receptive productive vocabulary English and/or Spanish. methodology devised degree overlap knowledge one language their other. Using measures presented here, there no statistical basis...

ABSTRACT The bilingual child is seen as a unique source of information about the relation between input and intake. strength association language exposure estimates vocabulary learning was examined for 25 simultaneous infants (ages 8 to 30 months) with differing patterns languages being learned. Using MacArthur Communicative Development Inventories, standardized parent report forms in English Spanish, percentage all words that were known each calculated then plotted against (also...

The traditional belief that audition plays only a minor role in infant vocal development depends upon evidence deaf infants produce the same kinds of babbling sounds as hearing infants. Evidence support this position has been very limited. A more extensive comparison and indicates is error. Well-formed syllable production established first 10 months life by but not infants, indicating an important development. difference between apparent if are observed from metaphonological perspective,...

The duration of speech segments as a function position in utterances (initial, medial, final) was studied. In the first experiment seven English speakers read nonsense form “say [bab], say [bábab], [babáb],” etc. Spectrograms were used to determine readings. Final syllables found be longer than nonfinal syllables. Final-syllable vowel increments approximately 100 msec. consonant less increments; for instance, absolute final about 20 Also word-initial consonants lengthened by 20–30 msec over...

Bilingual children's language and literacy is stronger in some domains than others. Reanalysis of data from a broad-scale study monolingual English bilingual Spanish-English learners Miami provided clear demonstration "profile effects," where children perform at varying levels compared to monolinguals across different test types. The profile effects were strong consistent conditions socioeconomic status, the home, school setting (two way or immersion). indicated comparable performance basic...

This research provided a first-generation standardization of automated language environment estimates, validated these estimates against standard assessments, and extended on previous reporting behavior differences across socioeconomic groups.Typically developing children between 2 to 48 months age completed monthly, daylong recordings in their natural environments over span approximately 6-38 months. The resulting data set contained 3,213 12-hr automatically analyzed by using the Language...

We analyzed the microstructure of child-adult interaction during naturalistic, daylong, automatically labeled audio recordings (13,836 hr total) children (8- to 48-month-olds) with and without autism. found that an adult was more likely respond when child’s vocalization speech related rather than not related. In turn, a be if previous speech-related had received immediate response no response. Taken together, these results are consistent idea there is social feedback loop between child...

For generations the study of vocal development and its role in language has been conducted laboriously, with human transcribers analysts coding taking measurements from small recorded samples. Our research illustrates a method to obtain measures early speech through automated analysis massive quantities day-long audio recordings collected naturalistically children's homes. A primary goal is provide insights into infant control over infrastructural characteristics large-scale statistical...

ABSTRACT Previous scholars have claimed that the child's babbling (meaningless speech-like vocalizations) includes a random assortment of speech sounds found in languages world. Babbled been to bear no relationship later meaningful speech. The present research disputes traditional position on by showing phonetic content babbled utterances exhibits many same preferences for certain kinds elements and sequences production children stages language development.

OBJECTIVES: Quantity of talk and interaction in the home during early childhood is correlated with socioeconomic status (SES) can be used to predict language cognitive outcomes. We tested effectiveness automated environment estimates for children 2 36 months old skills 10 years later examined effects specific developmental age periods. METHODS: Daylong audio recordings 146 infants toddlers were completed monthly 6 months, total number daily adult words adult-child conversational turnswere...

Receptive vocabulary of Hispanic children in Miami was tested both English and Spanish with complementary standardized tests, the Peabody Picture Vocabulary Test (PPVT-R) de Vocabulario en Imágenes (TVIP-H). 105 bilingual first graders, middle to high socioeconomic status relative national norms, were divided according language(s) spoken their homes. Both groups, whether they spoke only home (OSH) or (ESH), performed near mean 100 receptive (TVIP-H means 97.0 96.5); contrast, ESH group...

ABSTRACT This study tests the widely-cited claim from Volterra & Taeschner (1978), which is reinforced by Clark's Principle Of Contrast (1987), that young simultaneous bilingual children reject cross-language synonyms in their earliest lexicons. The rejection of translation equivalents taken as support for idea child possesses a single-language system includes elements both languages. We examine first accuracy empirical and then its adequacy argument do not have independent lexical...

We report on the emergence of functional flexibility in vocalizations human infants. This vastly underappreciated capability becomes apparent when prelinguistic express a full range emotional content—positive, neutral, and negative. The data show that at least three types infant (squeals, vowel-like sounds, growls) occur with this expression by 3–4 mo age. In contrast, cry laughter, which are species-specific signals apparently homologous to vocal calls other primates, stability,...

The onset of canonical babbling (implying production well-formed syllables) is a landmark event in the development capacity for speech, capping series vocal stages infant's first year life. Infants who are handicapped with regard to linguistic are, some cases, delayed speech-like sounds such as syllables. age infants born at risk, either due prematurity or low socioeconomic status (SES) has not been extensively studied. This research, based on longitudinal investigation and other motor...

By their 10th month of life, typically developing infants produce canonical babbling, which includes the well-formed syllables required for meaningful speech. Research suggests that emerging speech or language-related disorders might be associated with late onset babbling. Onset babbling was investigated 1,536 high-risk infants, at about 10-months corrected age. Parental report by open-ended questionnaire found to an efficient method ascertaining status. Although delays were infrequent, they...

Musical acculturation from infancy to adulthood was studied by testing the abilities of Western 6-month-olds and adults notice mistunings in melodies based on native major, minor, non-native Javanese pelog scales. Results indicated that infants were similarly able perceive Adults, however, generally better perceivers than These findings suggest are born with an equipotentiality for perception scales a variety cultures subsequent culturally specific experience substantially influences music...

Pre-meaningful vocalizations produced by nine normally developing and 10 Down's syndrome infants were recorded as part of a longitudinal study language development. The recordings phonetically transcribed using modified version the International Phonetic Alphabet. Data analyzed in terms (1) age at onset reduplicated babbling, (2) developmental trends for place consonant articulation, (3) aspects vocalic productions. In general, substantial similarities between two groups observed with regard...