Fast Mapping in Normal and Language-Impaired Children

1987 ◽  
Vol 52 (3) ◽  
pp. 218-222 ◽  
Author(s):  
Christine A. Dollaghan
Keyword(s):  
Normal Subjects ◽  
Nonsense Word ◽  
The Novel ◽  
Fast Mapping ◽  
Single Exposure ◽  
Normal Children ◽  
New Words ◽  
Language Impaired ◽  
Lexical Representations ◽  
Impaired Children

In this study, the fast mapping skills of a group of 11 normal children (ages 4:0–5:6) were compared to those of a group of 11 language-impaired children (ages 4:1–5:4) exhibiting expressive syntactic deficits. Fast mapping is a hypothesized process enabling children to create lexical representations for new words after as little as a single exposure. Subjects encountered a nonsense word and its novel object referent. Subsequent tasks probed the amount and kinds of information about the new word that the subjects had entered into memory. Normal and language-impaired subjects did not differ in their ability to infer a connection between the novel word and referent, to comprehend the novel word after a single exposure, and to recall some nonlinguistic information associated with the referent. However, the language-impaired subjects were less successful than the normal subjects in producing the new word, recalling significantly fewer of its three phonemes.

Child Meets Word

1985 ◽  
Vol 28 (3) ◽  
pp. 449-454 ◽  
Author(s):  
Chris Dollaghan
Keyword(s):  
Preschool Children ◽  
Nonsense Word ◽  
The Novel ◽  
Fast Mapping ◽  
Novel Object ◽  
Significant Percentage ◽  
New Words ◽  
Lexical Representations

"Fast mapping" (Carey & Bartlett, 1978) is a hypothesized process enabling children to rapidly create lexical representations for the unfamiliar words they encounter. In this study, 35 normal preschool children, ages 2:1–5:11 (years:months), were exposed to a monosyllabic nonsense word and its novel object referent. On first exposure, 91% of the subjects inferred the connection between the novel word and referent. After this single encounter, 81% correctly identified the referent on hearing its label a second time. After hearing the new word twice, 45% were able to produce at least two of its three phonemes in labeling the novel referent. Of those children who did not attempt to label the novel referent, a significant percentage recognized the correct label. In addition, a significant percentage of subjects recalled some nonlinguistic information associated with the referent. Normal preschoolers appear to create fast mappings containing a great deal of linguistic and nonlinguistic information on the basis of even brief, casual encounters with new words.

Responses to Requests for Clarification in Linguistically Normal and Language-Impaired Children

1986 ◽  
Vol 51 (4) ◽  
pp. 370-378 ◽  
Author(s):  
Bonnie Brinton ◽  
Martin Fujiki ◽  
Erika Winkler ◽  
Diane Frome Loeb
Keyword(s):  
Normal Subjects ◽  
Normal Children ◽  
Language Impaired ◽  
Conversational Repair ◽  
Impaired Children

This study compared the conversational repair strategies employed by language-impaired and normal children in response to a stacked series of requests for clarification. Ten linguistically normal and 10 language-impaired children were sampled from each of the following age levels, 4:10–5:10, 6:10–7:10, and 8:10-9:10, resulting in a total of 60 subjects. Each subject was asked to describe a series of action pictures for an examiner who was seated behind a screen. At regular intervals, the examiner responded to the child's description by initiating a repair sequence. Each sequence consisted of three different neutral requests for clarification("Huh?" "What?", and "I didn't understand that.") and the subject's response to each request. Although all subjects appeared to recognize the obligatory nature of the neutral clarification requests employed, differences were observed in the repair strategies used by normal and language-impaired children. In addition, impaired and younger normal subjects had greater difficulty responding appropriately as the stacked sequence progressed.

Early action word acquisition in normal and language-impaired children

1988 ◽  
Vol 9 (2) ◽  
pp. 111-122 ◽  
Author(s):  
Richard G. Schwartz
Keyword(s):  
Language Impairment ◽  
Specific Language Impairment ◽  
Nonsense Word ◽  
Single Word ◽  
Normal Children ◽  
Language Impaired ◽  
Word Acquisition ◽  
Early Action ◽  
Different Types ◽  
Impaired Children

AbstractThe acquisition of words referring to three types of actions was examined in normally developing and language-impaired children using a nonsense word paradigm. Fourteen language-normal and 10 language-impaired children whose speech was limited to single-word utterances served as subjects. The children were presented with 12 experimental words in 5 sessions over a period of approximately 3 weeks. The experimental words referred to actions that were classified as intransitive, transitive and specific to a particular object, or transitive but performed on 4 different objects. The children in both groups produced few of the action words. However, the groups differed in their comprehension of the three action word types. Specifically, the language-impaired children did not exhibit differences in comprehension across the different types of actions. The language-normal children, however, comprehended fewer words for intransitive actions than for the other types. The implications of these findings for characterizations of early lexical acquisition and for the nature of specific language impairment are addressed.

Phonological and Spatial Processing Abilities in Language- and Reading-Impaired Children

1988 ◽  
Vol 53 (3) ◽  
pp. 316-327 ◽  
Author(s):  
Alan G. Kamhi ◽  
Hugh W. Catts ◽  
Daria Mauer ◽  
Kenn Apel ◽  
Betholyn F. Gentry
Keyword(s):  
Phonological Processing ◽  
Spatial Information ◽  
Normal Children ◽  
Language Impaired ◽  
Word Repetition ◽  
Paper Folding ◽  
Syllable Segmentation ◽  
Processing Abilities ◽  
Impaired Children ◽  
Better Than

In the present study, we further examined (see Kamhi & Catts, 1986) the phonological processing abilities of language-impaired (LI) and reading-impaired (RI) children. We also evaluated these children's ability to process spatial information. Subjects were 10 LI, 10 RI, and 10 normal children between the ages of 6:8 and 8:10 years. Each subject was administered eight tasks: four word repetition tasks (monosyllabic, monosyllabic presented in noise, three-item, and multisyllabic), rapid naming, syllable segmentation, paper folding, and form completion. The normal children performed significantly better than both the LI and RI children on all but two tasks: syllable segmentation and repeating words presented in noise. The LI and RI children performed comparably on every task with the exception of the multisyllabic word repetition task. These findings were consistent with those from our previous study (Kamhi & Catts, 1986). The similarities and differences between LI and RI children are discussed.

Object Transformations in the Play of Language-Impaired Children

1988 ◽  
Vol 53 (4) ◽  
pp. 459-466 ◽  
Author(s):  
Brenda Y. Terrell ◽  
Richard G. Schwartz
Keyword(s):  
Normal Subjects ◽  
Play Behavior ◽  
Chronological Age ◽  
Standard Group ◽  
Language Impaired ◽  
Normal Language ◽  
Mean Length Of Utterance ◽  
Impaired Children

The play behavior of 10 language-impaired children was observed. Their performances in play were compared to those of 10 normal-language children matched for chronological age as well as to those of 10 normal-language children matched for mean length of utterance. The children were observed as they played spontaneously with a standard group of toys and as they played with objects that required object transformations for successful play. The chronological age-matched normal subjects showed a trend toward performance of more object transformations in play than either the language-impaired or younger normal-language children. Additionally, although object transformations were observed in both segments, all children performed more object transformations with objects than with toys.

Word learning in a special population: do individuals with Williams syndrome obey lexical constraints?

1997 ◽  
Vol 24 (3) ◽  
pp. 737-765 ◽  
Author(s):  
TASSOS STEVENS ◽  
ANNETTE KARMILOFF-SMITH
Keyword(s):  
Williams Syndrome ◽  
Word Learning ◽  
Neurodevelopmental Disorder ◽  
Fast Mapping ◽  
Mutual Exclusivity ◽  
Vocabulary Size ◽  
Normal Children ◽  
New Words ◽  
Adolescents And Adults ◽  
Lexical Constraints

Williams syndrome (WS), a rare neurodevelopmental disorder, is of special interest to developmental psycholinguists because of its uneven linguistico-cognitive profile of abilities and deficits. One proficiency manifest in WS adolescents and adults is an unusually large vocabulary despite serious deficits in other domains. In this paper, rather than focus on vocabulary size, we explore the processes underlying vocabulary acquisition, i.e. how new words are learned. A WS group was compared to groups of normal MA-matched controls in the range 3–9 years in four different experiments testing for constraints on word learning. We show that in construing the meaning of new words, normal children at all ages display fast mapping and abide by the constraints tested: mutual exclusivity, whole object and taxonomic. By contrast, while the WS group showed fast mapping and the mutual exclusivity constraint, they did not abide by the whole object or taxonomic constraints. This suggests that measuring only the size of WS vocabulary can distort conclusions about the normalcy of WS language. Our study shows that despite equivalent behaviour (i.e. vocabulary test age), the processes underlying how vocabulary is acquired in WS follow a somewhat different path from that of normal children and that the atypically developing brain is not necessarily a window on normal development.

scholarly journals The comprehension of deictic terms in normal and language impaired children

1981 ◽  
Vol 28 (1) ◽  
Author(s):  
Michelle Mentis
Keyword(s):  
Qualitative Analysis ◽  
The Other ◽  
Developmental Sequence ◽  
Stages Of Development ◽  
Normal Children ◽  
Language Impaired ◽  
Semantic Complexity ◽  
Impaired Group ◽  
Age Range ◽  
Impaired Children

This study examined the comprehension of four pairs of deictic terms in a group of language impaired children and compared their interpretation of these terms with those of non-language impaired children of the same age range. Each group was comprised of ten subjects within the age range of 9,6 to 10,6 years. Two tasks were administered, one to assess the comprehension of the terms here, there, this, and that and the other to assess the comprehension of the terms, come, go, bring and take. The results showed that while the non-language impaired subjects comprehended the full deictic contrast between the pairs of terms tested, the language impaired group did not. A qualitative analysis of the data revealed that the language impaired subjects appeared to follow the same developmental sequence as normal children in their acquisition of these terms and responded by using the same strategies that younger non-language impaired children use at equivalent stages of development. Furthermore, the language impaired subjects appeared to comprehend the deictic terms in a predictable order based on their relative semantic complexity.

scholarly journals Aspects of cohesion, tense and pronoun usage in the discourse of the older language-impaired child

1978 ◽  
Vol 25 (1) ◽  
Author(s):  
Hilary Berger ◽  
Aletta Sinoff
Keyword(s):  
Language Impairment ◽  
Impaired Child ◽  
Normal Children ◽  
Situational Context ◽  
Language Impaired ◽  
Diagnosis And Therapy ◽  
Significant Difference ◽  
Impaired Children

Aspects of the discourse of 5 language-impaired children and 5 children with no language impairment, aged approximately 9 years, were compared. A film and a story sequence were utilised to elicit narratives on which, measures of cohesion, tense and pronouns were appraised. Measures of cohesion refer  to the ability to indicate appropriately the relations of meaning with regard to situational context. Measures of tense include aspects of tense range and tense continuity. Measures of  pronouns refer  to the anaphoric use of  pronouns with non-ambiguous referents.  The group of language-impaired children was found  to be significantly poorer on measures of  cohesion and pronominal usage than the normal children, whereas a significant difference between the two groups was not revealed on measures of tense. Possible factors  accounting for  these findings  were discussed and implications for the diagnosis and therapy of the older language-impaired child were considered.

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.

Conversational Responsiveness and Assertiveness in Language-Impaired Children

1987 ◽  
Vol 18 (1) ◽  
pp. 53-62 ◽  
Author(s):  
Mary Kay Rosinski-McClendon ◽  
Marilyn Newhoff
Keyword(s):  
Language Ability ◽  
Normal Children ◽  
Language Impaired ◽  
Impaired Children

It has been suggested that language-disordered children may be less conversationally responsive and/or assertive than their normal matched counterparts. This investigation compared these abilities in 10 language-impaired children ranging in age from 4:1 to 5:9, and 10 normal children matched for language ability (2:8 to 4:2). Comparisons were based on subjects' responses to systematic probes that occurred within examiner-child dialogues. Total scores were derived from: (a) the number of questions answered, (b) the number of attempts to continue a topic following a no-response, and (c) the number of attempts to maintain the original topic after the examiner changed the topic. Results indicated that although language-impaired children responded to questions significantly less often than did their normal peers, they were equally assertive both in continuing a topic after no comment by the examiner and in maintaining the topic following a topical change.

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