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PubMedDate not supplied

Prosodic and lexical aspects of maternal linguistic input to late-talking toddlers.

BACKGROUND: Children who have reached the age of 2 years without having acquired a 50-word vocabulary and/or who use no word combinations are referred to in the literature as 'Late Talkers'. Research has not yet identified the factors that cause slow development of expressive language; in particular, relatively little research has been carried out on the characteristics of the maternal linguistic input received by Late Talkers. In fact, the majority of studies in this area have focused principally on the mothers' semantic, pragmatic and interactive verbal behaviour. AIMS: The objective was to verify whether the input addressed to a group of Late Talkers differs to that addressed to a group of typically developing peers. It was expected that there would be differences in the prosodic and structural/lexical properties of the input, which by creating a 'less than optimal environment' for language acquisition processes, could affect the children's rate of linguistic development. METHODS & PROCEDURES: The spontaneous maternal speech of nine Italian-speaking mothers of late-talking toddlers (LT) at 20 months of age was examined and compared with that of nine mothers of age-matched children with typical language development (Late Starters). Data were collected during video-recorded play sessions, which were transcribed and coded based on the structural-lexical and acoustical characteristics of the mothers' speech. Group differences were tested for the following variables: number of utterances per minute, mean number of words per utterance (MLUw), number of nouns per minute, number of different nouns per minute, common nouns as a percentage of overall words, type/token ratio for common nouns, one-word utterances as a percentage of the total number of utterances, one-word utterances formed by a common noun as a percentage of the total number of utterances, mean syllable duration, duration of the final syllable of the utterance, F0 maximum (the highest F0 in the utterance), F0 minimum (the lowest F0 in the utterance) and F0 range (by subtracting F0 min from F0 max). OUTCOMES & RESULTS: The mothers of LT produced common nouns and mark nouns by a pitch peak with a significantly lower frequency than the mothers of the children with typical language development. The mothers of LT also used flat pitch contours more often than the mothers of the typically developing peers. CONCLUSIONS: The study provides evidence that maternal input addressed to Late Talkers can contribute to slowing the process of language acquisition. Based on these findings, additional investigations that examine the contribution of maternal verbal behaviour to the development of language delay are warranted.

Child Language↗
PubMed2001

Linguistic diversity in deaf defendants and due process rights.

Historically, ensuring the due process rights of deaf defendants has been a problematic issue in the criminal justice system (McAlister, 1994; Smith, 1994; Vernon & Coley, 1978; Vernon & Greenburg, 1996; Vernon & Miller, in press; Vernon & Raifman, 1997; Whalen, 1981; Wood, 1984). Inadequate communication can radically affect a deaf defendant's interactions in the courtroom. Pursuant to the concepts of fairness enshrined in the U.S. Constitution and the specific statutory language contained in federal and state laws, the courts must provide equal access for deaf defendants (Berko, 1992; Gallie & Smith, 2000; McCoy, 1992; Simon, 1994; Vernon & Raifman, 1997). It is the responsibility of the court to ensure that the appropriate accommodation is provided in the language most readily understood by the defendant.When adjudicating a deaf criminal defendant, courts must make certain that the defendant has equal access to various due process activities, such as assisting counsel in the development of a defense, deciding whether to testify, deciding which plea to enter, understanding the charges, understanding one's position as defendant, and comprehending the role of the defense and prosecuting attorneys, and judge (Berko, 1994; King, 1990; Simon, 1994; Smith, 1994; Vernon & Coley, 1978; Vernon & Miller, in press; Vernon, Raifman, & Greenberg, 1996).However, complex linguistic issues that impinge on adjudicative competence are present in some deaf defendants (Vernon & Miller, in press; Vernon & Raifman, 1997). Adjudicative competence refers to an individual's ability to adequately comprehend and participate in legal proceedings and due process activities. When diverse language use is an issue, a deaf defendant's ability to participate in proceedings can be established by the court using the modern test of adjudicative competence (Dusky v. U.S., 1960). This test examines a defendant's state of mind at the time of trial rather than at the time of the offense in terms of these factors: a defendant's capacity to participate, reasonable understanding of the proceedings, and level of cognitive functioning, irrespective of any mental disorder. This article will outline linguistic barriers to due process for deaf defendants.

Journal Article↗
PubMed2002

University interpreting: linguistic issues for consideration.

This study describes Auslan/English interpreters' use of translation style when interpreting for a university lecture. Some interpreters switched translation style, between free and literal methods of interpretation, as a linguistic strategy for dealing with the sociolinguistic influences of the discourse environment. In particular, attention was paid to the interpreters' educational background (and therefore their familiarity with academic discourse), the linguistic features and lexical density of the text, and their influences on the interpretation. The key finding of the study was that Auslan/English interpreters predominantly used a free or literal interpretation approach, but switched between translation styles at particular points of the text, leading to the suggestion of the concept of "translational contact." The findings of this study are not only significant in Australia but can also benefit interpreters and interpreter educators internationally.

Journal Article↗
PubMed1989

Age and decision strategies in running memory for speech: effects of prosody and linguistic structure.

Young and elderly adults heard recorded passages of English prose spoken with and without normal prosody, and passages that were devoid of either linguistic or prosodic structure. Subjects were instructed to interrupt the speech input at points of their choosing for immediate recall on a segment-by-segment basis. For both age groups segmentation strategies varied with type of speech materials as did their levels of recall accuracy. Age differences in recall performance were diminished by the presence of normal prosody, an effect only partially attributable to the use of prosody to detect linguistic boundaries at the surface level.

Age Factors↗
PubMed1996

A linguistic model of informed consent.

The current disclosure model of informed consent ignores the linguistic complexity of any act of communication, and the increased risk of difficulties in the special circumstances of informed consent. This article explores, through linguistic analysis, the specificity of informed consent as a speech act, a communication act, and a form of dialogue, following on the theories of J.L. Austin, Roman Jakobson, and Mikhail Bakhtin, respectively. In the proposed model, informed consent is a performative speech act resulting from a series of communication acts which together constitute a dialogic, polyphonic, heteroglossial discourse. It is an act of speech that results in action being taken after a conversation has happened where distinct individuals, multiple voices, and multiple perspectives have been respected, and convention observed and recognized. It is more meaningful and more ethical for both patient and physician, in all their human facets including their interconnectedness.

Communication↗
PubMed2003

Training medical students to communicate with a linguistic minority group.

Effective communication is central to a successful physician-patient relationship. Communication is usually enhanced when the linguistic and cultural attributes of patients are incorporated in health care delivery. With this purpose in mind, the Faculty of Medicine at the University of Ottawa has developed a French-language stream to train future physicians for the francophone minority population of Ontario. As part of this project, a communication skills laboratory was created for francophone students in 1996, since all three tertiary care teaching hospitals operated in English only. The laboratory consists of a controlled environment where francophone students conduct interviews in French while being observed by clinicians trained in observation and feedback techniques. It makes use of simulated patients trained to play specific roles and to give feedback to students. Laboratory sessions take place throughout the first and second years and expose students to 15 scenarios covering different themes in each year. Each scenario includes a communication problem. Facilities are in place for filming the encounters for review by students. The project has had favorable outcomes. Both students and clinician-supervisors find that the laboratory offers an excellent learning environment and describe the cases as realistic and instructive. Clerkship preceptors are pleased with the students' communication skills. Because of the success of the laboratory, faculty authorities plan to translate the scenarios and offer similar sessions to students in the English-language stream. The teaching methods used in the communication skills laboratory may be of interest to other medical schools that serve linguistic minority populations.

Communication↗
PubMed1991

Effect of linguistic interference on sentence identification.

This study was designed to investigate the extent to which continuous speech competition, in sentence identification paradigm, produces linguistic interference over and above acoustic masking. We evaluated performance on the Synthetic Sentence Identification (SSI) test in 24 bilingual speakers of English and Spanish under four experimental conditions: (1) target and competition both in English, (2) target and competition both in Spanish, (3) target in English, competition in Spanish, and (4) target in Spanish, competition in English. After controlling for the effects of acoustic masking, results showed significantly better performance in conditions when target and competition were in different languages (interlingual interference) than when target and competition were in the same language (intralingual interference). The difference in performance is attributed to the effects of greater linguistic interference when target and competition were in the same language.

Acoustics↗
PubMed1982

Strategic behavior and linguistic functions of institutionalized moderately retarded persons.

The communication skills of moderately and severely retarded persons play a major part in the success of vocational and self-help training programs in mental retardation institutions. Up to the present time, educators have attempted to overcome language deficits by training word use and comprehension skills which have immediate impact. An alternative approach which may have broader implications is to identify and develop the cognitive functions which mediate performance. Tests of two coding processes and measures of linguistic activity were administered to 100 institutionalized moderately retarded adults. Correlational analyses drew attention to the association between use and understanding of language and successive processing. However, analysis of variance based upon a double median split of simultaneous and successive processing factor scores indicated the importance of both coding dimensions in establishing syntax and relational associations. The results of the study confirmed earlier research conducted with less severely retarded and non-retarded subjects and provided evidence of the relationship between coding and linguistic functions. This research also provided a data base for the development of training programs based upon simultaneous and successive synthesis.

Australia↗
PubMed1992

Temporal information in speech: acoustic, auditory and linguistic aspects.

The temporal properties of speech appear to play a more important role in linguistic contrasts than has hitherto been appreciated. Therefore, a new framework for describing the acoustic structure of speech based purely on temporal aspects has been developed. From this point of view, speech can be said to be comprised of three main temporal features, based on dominant fluctuation rates: envelope, periodicity, and fine-structure. Each feature has distinct acoustic manifestations, auditory and perceptual correlates, and roles in linguistic contrasts. The applicability of this three-featured temporal system is discussed in relation to hearing-impaired and normal listeners.

Auditory Perception↗
PubMed2005

Linguistic cues enhance the learning of perceptual cues.

When language is correlated with regularities in the world, does it enhance the learning of these regularities? This question lies at the core of both notions of linguistic bootstrapping in children and the Whorfian hypothesis. Support for an affirmative answer is provided in an artificial-noun-learning task in which 2-year-old children were taught to distinguish categories of solid and nonsolid things with and without supporting correlated linguistic cues.

Attention↗
PubMed2004

Linguistic sensitivity, indigenous peoples and the mental health system in Wales.

This paper presents findings from a pilot research project to explore the significance and availability of mental health services in the medium of Welsh in Wales, UK. Based on small-scale research with Welsh-speaking mental health service users this article argues that being bilingual can be a significant factor in the complex biopsychosocial matrix that underpins mental health problems amongst Welsh speakers. It also argues that the destructive effects of linguistic oppression, and the difficulties of second language communication for mental health service users, are such that an appropriate health and social care response in Wales involves providing services in a user's preferred language. Service users' views about the current state of bilingual service provision in Wales are presented, which suggests that insufficient attention is being paid to the linguistic needs of Welsh speakers. Eight principles are proposed for mental health service policy and practice in Wales.

Communication Barriers↗
PubMed1986

Clinical linguistic and auditory milestone scale: prediction of cognition in infancy.

At each well-child examination between birth and two years, parents of 448 infants were questioned about their child's age at attainment of 25 linguistic and auditory milestones. Parental reports were compared with the results of independently administered Bayley Mental Developmental Index (MDI) at one year of age. Parental recall of information was high, ranging from 70 to 99 per cent for 21 of the 25 milestones. The milestone performance of infants with normal MDI scores showed an orderly, sequential progression of expressive and receptive language. Across the entire population studied, the correlation between milestone attainment and MDI was statistically significant for 24 of the 25 milestones, and later attainment of milestones correlated with lower MDI. As a group, 'delayed' infants (MDI less than 68) attained milestones significantly later than 'average' infants (MDI 85 to 116) for 20 of 25 items. Attention to linguistic and auditory milestones early in infancy can contribute to the early detection and diagnosis of mental retardation and disorders of communication.

Auditory Perception↗
PubMed1993

[Francophone migratory flows between Quebec and Ontario: toward spatio-linguistic polarization?].

"The link between linguistic mobility and spatial mobility is investigated through the analysis of francophone migratory flows between Quebec and Ontario during the 1981-1986 period. Using 1986 census data, the analysis shows that these flows are indeed part of a more polarized spatio-linguistic situation. However, the results also show that this phenomenon is closely related to another one, that is to the return migration flow toward Quebec. Due to this relation, the role of Quebec as a true migration pole for French population outside Quebec is more problematic." (SUMMARY IN ENG)

Americas↗
PubMed1979

Do schizophrenics use linguistic rules in speech recall?

Varying degrees of organization of verbal material were presented to determine their use in sentence reproduction by acute and chronic schizophrenic subjects, a psychiatric (alcoholic) control group, and a healthy control group. The material consisted of six-word sentences presented over earphones, with background noise of differing intensity. The main result was that schizophrenics use verbal organization as effectively as healthy and psychiatric controls when reproducing the sentences. The noise distraction influenced performance of all groups similarly. Results suggest that performance of schizophrenics is facilitated by structured material (semantic and syntactic organization). The results do not suggest that either the linguistic repertoire or the application of linguistic rules is specifically affected in schizophrenia. The flatter performance slope of schizophrenics with increasing contexual constraints, found by some researchers, is explained by the unspecific effect of task difficulty.

Acute Disease↗
PubMed2006

Developmental and cross-linguistic variation in the infant vowel space: the case of Canadian English and Canadian French.

This article describes the results of two experiments. Experiment 1 was a cross-sectional study designed to explore developmental and cross-linguistic variation in the vowel space of 10- to 18-month-old infants, exposed to either Canadian English or Canadian French. Acoustic parameters of the infant vowel space were described (specifically the mean and standard deviation of the first and second formant frequencies) and then used to derive the grave, acute, compact, and diffuse features of the vowel space across age. A decline in mean F1 with age for French-learning infants and a decline in mean F2 with age for English-learning infants was observed. A developmental expansion of the vowel space into the high-front and high-back regions was also evident. In experiment 2, the Variable Linear Articulatory Model was used to model the infant vowel space taking into consideration vocal tract size and morphology. Two simulations were performed, one with full range of movement for all articulatory paramenters, and the other for movement of jaw and lip parameters only. These simulated vowel spaces were used to aid in the interpretation of the developmental changes and cross-linguistic influences on vowel production in experiment 1.

Child Language↗
PubMed1988

Patterns of interarticulator phasing and their relation to linguistic structure.

Work by Tuller and Kelso [J. Acoust. Soc. Am. 76, 1030-1036 (1984)] and Kelso et al. [J. Phon. 14, 29-59 (1986)] has demonstrated stable relations between jaw and lip movements in (bV#CVb) utterances across rate and stress conditions. Specifically, the onset of lip movement toward the intervocalic consonant was found to be constant with respect to the vowel-to-vowel jaw cycle in both time and relative phasing. An attempt was made to replicate and extend this work by investigating interarticulator phase relations for utterances having a broader range of linguistic organization: In addition to rate and stress, syllable structure (open versus closed syllables) and identity of the intervocalic consonant (/p/ vs /m/) were manipulated. Results showed that the upper lip's lowering onset varied systematically with respect to the jaw vowel cycle as a function of both rate and stress. In addition, syllable structure and consonant identity influenced the relation of lip and jaw gestures. There was a general tendency for any condition that shortened the first vowel to produce earlier onsets of the upper lip relative to the jaw. However, the within-condition jaw cycle duration variability did not correlate with the within-condition variability in phase. Thus it seems that stable interarticulator phase relations maintain not only the integrity of phonological structure, as suggested by Kelso et al., but structural integrity at other levels of linguistic organization as well.

Female↗
PubMed1992

The linguistic basis of left hemisphere specialization.

In humans the two cerebral hemispheres of the brain are functionally specialized with the left hemisphere predominantly mediating language skills. The basis of this lateralization has been proposed to be differential localization of the linguistic, the motoric, or the symbolic properties of language. To distinguish among these possibilities, lateralization of spoken language, signed language, and nonlinguistic gesture have been compared in deaf and hearing individuals. This analysis, plus additional clinical findings, support a linguistic basis of left hemisphere specialization.

Adult↗
PubMed1969

Linguistic structure and transposition.

Transfer of a learned discrimination along the size dimension was studied in groups of American and African tribal children. The language spoken by the African children contains an asymmetry in the expression of size comparisons that is not present in English. Contrary to theories of linguistic mediation of choice behavior, transfer choices were not related to the differing linguistic patterns; however, initial choices and post-test descriptions of choices were so related.

Child↗