Attention and word learning in toddlers who are late talkers

2015 ◽  
Vol 43 (5) ◽  
pp. 1020-1037 ◽  
Author(s):  
MICHELLE MACROY-HIGGINS ◽  
ELIZABETH A. MONTEMARANO
Keyword(s):  
Language Development ◽  
Word Learning ◽  
Learning Task ◽  
Attention Allocation ◽  
The Novel ◽  
Typically Developing ◽  
Auditory Comprehension ◽  
Late Talkers ◽  
Novel Words

AbstractThe purpose of this study was to examine attention allocation in toddlers who were late talkers and toddlers with typical language development while they were engaged in a word-learning task in order to determine if differences exist. Two-year-olds who were late talkers (11) and typically developing toddlers (11) were taught twelve novel pseudo-words for unfamiliar objects over ten training sessions. The toddlers' attention allocation during the word-learning sessions was measured as well as their comprehension of the newly learned words. Late talkers showed reduced attention allocation to objects during word-training sessions, and also comprehended fewer of the novel words than toddlers with typical language development. Attention allocation was found to be a stronger predictor of word learning as compared to cognition and auditory comprehension. Reduced attention allocation may contribute to the early lexical delay characteristic in late talkers.

scholarly journals Vocabulary development in Greek children: a cross-linguistic comparison using the Language Development Survey*

2011 ◽  
Vol 38 (4) ◽  
pp. 861-887 ◽  
Author(s):  
CHRISTINA F. PAPAELIOU ◽  
LESLIE A. RESCORLA
Keyword(s):  
Language Development ◽  
Word Learning ◽  
Vocabulary Development ◽  
Typically Developing ◽  
Normative Sample ◽  
Vocabulary Size ◽  
Word Use ◽  
Closed Class ◽  
Late Talkers ◽  
Us Children

ABSTRACTThis study investigated vocabulary size and vocabulary composition in Greek children aged 1 ; 6 to 2 ; 11 using a Greek adaptation of Rescorla's Language Development Survey (LDS; Rescorla, 1989). Participants were 273 toddlers coming from monolingual Greek-speaking families. Greek LDS data were compared with US LDS data obtained from the instrument's normative sample (Achenbach & Rescorla, 2000). Vocabulary size increased markedly with age, but Greek toddlers appeared to get off to a slower start in early word learning than US children. The correlation between percentage word use scores in Greek and US samples was moderate in size, indicating considerable overlap but some differences. Common nouns were the largest category among the fifty most frequent words in both samples. Numbers of adjectives and verbs were comparable across languages, but people and closed-class words were more numerous in the Greek sample. Finally, Greek late talkers showed similar patterns of vocabulary composition to those observed in typically developing Greek children.

The Influence of Phonotactic Probability on Nonword Repetition and Fast Mapping in 3-Year-Olds With a History of Expressive Language Delay

2015 ◽  
Vol 58 (6) ◽  
pp. 1773-1779 ◽  
Author(s):  
Michelle MacRoy-Higgins ◽  
Kevin Patrick Dalton
Keyword(s):  
Word Learning ◽  
Language Delay ◽  
Nonword Repetition ◽  
The Novel ◽  
Typically Developing ◽  
Fast Mapping ◽  
Phonotactic Probability ◽  
Lexical Representations ◽  
Late Talkers ◽  
History Of

Purpose The purpose of this study was to examine the influence of phonotactic probability on sublexical (phonological) and lexical representations in 3-year-olds who had a history of being late talkers in comparison with their peers with typical language development. Method Ten 3-year-olds who were late talkers and 10 age-matched typically developing controls completed nonword repetition and fast mapping tasks; stimuli for both experimental procedures differed in phonotactic probability. Results Both participant groups repeated nonwords containing high phonotactic probability sequences more accurately than nonwords containing low phonotactic probability sequences. Participants with typical language showed an early advantage for fast mapping high phonotactic probability words; children who were late talkers required more exposures to the novel words to show the same advantage for fast mapping high phonotactic probability words. Conclusions Children who were late talkers showed similar sensitivities to phonotactic probability in nonword repetition and word learning when compared with their peers with no history of language delay. However, word learning in children who were late talkers appeared to be slower when compared with their peers.

Infants' acceptance of phonotactically illegal word forms as object labels

2015 ◽  
Vol 43 (6) ◽  
pp. 1400-1411 ◽  
Author(s):  
ENA VUKATANA ◽  
SUZANNE CURTIN ◽  
SUSAN A. GRAHAM
Keyword(s):  
Word Learning ◽  
Learning Task ◽  
Training Phase ◽  
The Novel ◽  
Complex Interplay ◽  
Learning Abilities ◽  
Sound System ◽  
Word Forms ◽  
Novel Objects ◽  
Novel Words

AbstractWe investigated 16- and 20-month-olds' flexibility in mapping phonotactically illegal words to objects. Using an associative word-learning task, infants were presented with a training phase that either highlighted or did not highlight the referential status of a novel label. Infants were then habituated to two novel objects, each paired with a phonotactically illegal Czech word. When referential cues were provided, 16-, but not 20-month-olds, formed word–object mappings. In the absence of referential cues, infants of both ages failed to map the novel words. These findings illustrate the complex interplay between infants' developing sound system and their word learning abilities.

scholarly journals Non-native phonemes in adult word learning: evidence from the N400m

2009 ◽  
Vol 364 (1536) ◽  
pp. 3697-3709 ◽  
Author(s):  
Christian Dobel ◽  
Lothar Lagemann ◽  
Pienie Zwitserlood
Keyword(s):  
Statistical Learning ◽  
Word Learning ◽  
Native Language ◽  
The Novel ◽  
Learning Paradigm ◽  
Minimal Pairs ◽  
Lexical Activation ◽  
Semantic Access ◽  
Novel Words

Newborns are equipped with a large phonemic inventory that becomes tuned to one's native language early in life. We review and add new data about how learning of a non-native phoneme can be accomplished in adults and how the efficiency of word learning can be assessed by neurophysiological measures. For this purpose, we studied the acquisition of the voiceless, bilabial fricative /Φ/ via a statistical-learning paradigm. Phonemes were embedded in minimal pairs of pseudowords, differing only with respect to the fricative (/aΦo/ versus /afo/). During learning, pseudowords were combined with pictures of objects with some combinations of pseudowords and pictures occurring more frequently than others. Behavioural data and the N400m component, as an index of lexical activation/semantic access, showed that participants had learned to associate the pseudowords with the pictures. However, they could not discriminate within the minimal pairs. Importantly, before learning, the novel words with the sound /Φ/ showed smaller N400 amplitudes than those with native phonemes, evidencing their non-word status. Learning abolished this difference indicating that /Φ/ had become integrated into the native category /f/, instead of establishing a novel category. Our data and review demonstrate that native phonemic categories are powerful attractors hampering the mastery of non-native contrasts.

The Type, but Not the Amount, of Information Available Influences Toddlers' Fast Mapping and Retention of New Words

2014 ◽  
Vol 23 (2) ◽  
pp. 120-133 ◽  
Author(s):  
Kathryn W. Brady ◽  
Judith C. Goodman
Keyword(s):  
Word Learning ◽  
Word Meaning ◽  
The Novel ◽  
Fast Mapping ◽  
New Words ◽  
Amount Of Information ◽  
Significant Rate ◽  
Mapping Task ◽  
Novel Words

Purpose The authors of this study examined whether the type and number of word-learning cues affect how children infer and retain word-meaning mappings and whether the use of these cues changes with age. Method Forty-eight 18- to 36-month-old children with typical language participated in a fast-mapping task in which 6 novel words were presented with 3 types of cues to the words' referents, either singly or in pairs. One day later, children were tested for retention of the novel words. Results By 24 months of age, children correctly inferred the referents of the novel words at a significant level. Children retained the meanings of words at a significant rate by 30 months of age. Children retained the first 3 of the 6 word-meaning mappings by 24 months of age. For both fast mapping and retention, the efficacy of different cue types changed with development, but children were equally successful whether the novel words were presented with 1 or 2 cues. Conclusion The type of information available to children at fast mapping affects their ability to both form and retain word-meaning associations. Providing children with more information in the form of paired cues had no effect on either fast mapping or retention.

Patterns of spontaneous production of novel words and gestures within an experimental setting in children ages 1;6 and 2;2

2002 ◽  
Vol 29 (4) ◽  
pp. 911-921 ◽  
Author(s):  
LAURA L. NAMY ◽  
SANDRA R. WAXMAN
Keyword(s):  
Learning Task ◽  
Observational Evidence ◽  
The Novel ◽  
Experimental Setting ◽  
Symbolic Forms ◽  
Object Categories ◽  
Spontaneous Production ◽  
Over Time ◽  
Novel Words

This study presents an analysis of children's spontaneous production of words and gestures during an experimental symbol learning task. Namy & Waxman (1998) previously reported that children aged 1;6 interpreted novel arbitrary words (e.g. blicket) and manual gestures (e.g. a dropping motion) as names for object categories (e.g. fruit) but that at 2;2, children interpreted words as names more readily than gestures. Based on this finding and other observational evidence of gesture use, it has been suggested that the younger infants have an initial general symbolic capacity that encompasses both words and gestures. Over time, as infants acquire greater experience with language, words begin to take on a greater priority in the infant's communicative repertoire. The current study examines this hypothesis by analyzing children's spontaneous production of the novel symbols in Namy & Waxman's original task. At 1;6, children rarely produced either the novel words or gestures. At 2;2, children frequently produced both symbolic forms; however, words were produced in a referential manner while gestures were produced in a non-referential manner. These findings are consistent with the argument that over time, words supplant gestures as a symbolic medium.

Minimal-pair word learning by bilingual toddlers: the Catalan /e/-/ɛ/ contrast revisited

2016 ◽  
Vol 20 (3) ◽  
pp. 649-656 ◽  
Author(s):  
MARTA RAMON-CASAS ◽  
CHRISTOPHER T. FENNELL ◽  
LAURA BOSCH
Keyword(s):  
Word Learning ◽  
Native Language ◽  
Learning Task ◽  
Minimal Pair ◽  
Accented Speech ◽  
Phonetic Categories ◽  
Pair Word ◽  
Novel Words

Twelve-month-old bilingual and monolingual infants show comparable phonetic discrimination skills for vowels belonging to their native language/s. However, Catalan–Spanish bilingual toddlers, but not Catalan monolinguals, appear insensitive to a vowel mispronunciation in familiar words involving the Catalan–Specific /e/-/ɛ/ contrast. Here bilingual and monolingual toddlers were tested in a challenging minimal-pair word learning task involving that contrast (i.e., [bepi]-[bɛpi]). Both groups succeeded, suggesting that bilinguals can successfully use their phonetic categories to phonologically encode novel words. It is argued that bilinguals’ impoverished vowel representations in familiar words might be the result of experiential input factors (e.g., cognate words and mispronunciations due to accented speech).

scholarly journals Can We Enhance Statistical Learning? Exploring Statistical Learning Improvement in Children with Vocabulary Delay

2021 ◽  
Vol 26 (3) ◽  
pp. 558-567
Author(s):  
Dongsun Yim ◽  
Yoonhee Yang
Keyword(s):  
Statistical Learning ◽  
Incidental Learning ◽  
Learning Task ◽  
Learning Ability ◽  
The Novel ◽  
Typically Developing ◽  
Learning Improvement ◽  
Group Score ◽  
Domain Specific ◽  
Novel Word Learning

Objectives: If statistical learning ability is critical for language acquisition and language development, it is necessary to confirm whether enhancing statistical learning ability can improve the children’s language skills. The present study investigated whether children with and without vocabulary delay (VD) show a difference in improving statistical learning (SL) tasks manipulated with implicit, implicit*2 and explicit conditions, and with visual and auditory domains; and also explores the relationship among SL, vocabulary, and quick incidental learning (QUIL).Methods: A total of 132 children between 3 to 8 years participated in this study, including vocabulary delayed children (N= 34) and typically developing children (N = 98). Participants completed SL tasks which were composed of three exposure conditions, and Quick incidental learning (QUIL) tasks to tap the novel word learning ability.Results: The VD group score was significantly lower than the TD group in the explicit condition of the auditory statistical learning task, and there was a significant correlation between QUIL and SL_auditory (implicit*2) only in the TD group.Conclusion: These results may explain that the TD group was ready to accept the explicit cues for learning as a domain-specific (auditory) benefit, and their auditory SL ability can be closely linked to vocabulary abilities. The current study suggests one possibility; that the VD group can increase the statistical learning ability through double auditory exposures. The novel quick incidental learning in the TD group was supported by the statistical learning, but this was not seen in the VD group.

Repetition Versus Variability in Verb Learning: Sometimes Less Is More

2021 ◽  
pp. 1-15
Author(s):  
Sabrina Horvath ◽  
Sudha Arunachalam
Keyword(s):  
Eye Gaze ◽  
Mixed Effects ◽  
The Novel ◽  
Typically Developing ◽  
Regression Analyses ◽  
Typically Developing Children ◽  
Less Is More ◽  
Late Talkers ◽  
Consistent Condition ◽  
Initial Representation

Purpose This study examined whether 2-year-olds are better able to acquire novel verb meanings when they appear in varying linguistic contexts, including both content nouns and pronouns, as compared to when the contexts are consistent, including only content nouns. Additionally, differences between typically developing toddlers and late talkers were explored. Method Forty-seven English-acquiring 2-year-olds ( n = 14 late talkers, n = 33 typically developing) saw scenes of actors manipulating objects. These actions were labeled with novel verbs. In the varied condition, children heard sentences containing both content nouns and pronouns (e.g., “The girl is ziffing the truck. She is ziffing it!”). In the consistent condition, children heard the verb an equal number of times, but only with content nouns (e.g., “The girl is ziffing the truck. The girl is ziffing the truck!”). At test, children were shown two new scenes and were asked to find the novel verb's referent. Children's eye gaze was analyzed as a measure of learning. Results Mixed-effects regression analyses revealed that children looked more toward the correct scene in the consistent condition than the varied condition. This difference was more pronounced for late talkers than for typically developing children. Conclusion To acquire an initial representation of a new verb's meaning, children, particularly late talkers, benefit more from hearing the verb in consistent linguistic contexts than in varying contexts.

scholarly journals Children’s ability to use speaker certainty in learning novel words

2013 ◽  
Vol 30 ◽  
pp. 1-12 ◽  
Author(s):  
Myrthe Bergstra ◽  
Hannah de Mulder ◽  
Peter Coopmans
Keyword(s):  
Word Learning ◽  
Learning Process ◽  
Learning Task ◽  
Novel Object ◽  
Dutch Children ◽  
Novel Words

One of the cues that children might use in learning words is the level of certainty that speakers demonstrate in their naming of a novel object. This study presented 52 4–5 year old Dutch children with a word-learning task in which two puppets each used the same label for a different novel object. In three conditions, puppets expressed their level of speaker certainty lexically (e.g. ‘I know this is a mit’ vs. ‘I think this is a mit’), they used discourse means to convey certainty (e.g. ‘I play with this a lot. Yes, a mit’, vs. ‘I’ve never played with this. Well, a mit’) or they combined the two. In all conditions, children were more likely to pick the object referred to by the more certain puppet as the referent of the new word, demonstrating that speaker certainty is a relevant cue in the word learning process.

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