Aging and the vulnerability of speech to dual task demands.

Tracking a digital pursuit rotor task was used to measure dual task costs of language production by young and older adults. Tracking performance by both groups was affected by dual task demands: time on target declined and tracking error increased as dual task demands increased from the baseline condition to a moderately demanding dual task condition to a more demanding dual task condition. When dual task demands were moderate, older adults' speech rate declined but their fluency, grammatical complexity, and content were unaffected. When the dual task was more demanding, older adults' speech, like young adults' speech, became highly fragmented, ungrammatical, and incoherent. Vocabulary, working memory, processing speed, and inhibition affected vulnerability to dual task costs: vocabulary provided some protection for sentence length and grammaticality, working memory conferred some protection for grammatical complexity, and processing speed provided some protection for speech rate, propositional density, coherence, and lexical diversity. Further, vocabulary and working memory capacity provided more protection for older adults than for young adults although the protective effect of processing speed was somewhat reduced for older adults as compared to the young adults. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The structure of language abilities at 4 years: A twin study.

Normal language development was studied in 310 pairs of 4-year-old twins born in the United Kingdom in 1994. Twins were assessed individually in their homes on a diverse battery of language and nonverbal measures. Rotated factor analyses indicated the presence of a general Language factor (L) as well as a general Nonverbal (NV) factor. Moderate genetic influence was found for both L and NV abilities. Bivariate genetic analysis estimated a genetic correlation of .63 between L and NV abilities, implying that over half of the genetic influence on L overlaps with genetic influence on NV. These results suggest that at age 4, genetic influences on individual differences in language overlap substantially with genetic influences on individual differences in other cognitive abilities, although perhaps less so than later in development. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Use of the deaf in language studies: A reply to Furth.

Furth, in a recent review (see: 39: 3964), concludes that studies of the deaf indicate that intellectual development proceeds independently of the acquisition of language. In this paper several issues were seen as limiting the premature acceptance of this conclusion. Among these were: (a) the deaf, through special training from 3 yr of age, often possess a verbal system; (b) the conclusion in the review can never be disproven, since any deficient performance by the deaf can almost always be attributed to numerous environmental factors rather than a language handicap; and (c) many tasks were arbitrarily assumed to require symbolic activity without recognizing that this assumption is still open to investigation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Developmental trajectories in toddlers' self-restraint predict individual differences in executive functions 14 years later: A behavioral genetic analysis.

We examined whether self-restraint in early childhood predicted individual differences in 3 executive functions (EFs; inhibiting prepotent responses, updating working memory, and shifting task sets) in late adolescence in a sample of approximately 950 twins. At ages 14, 20, 24, and 36 months, the children were shown an attractive toy and told not to touch it for 30 s. Latency to touch the toy increased with age, and latent class growth modeling distinguished 2 groups of children that differed in their latencies to touch the toy at all 4 time points. Using confirmatory factor analysis, we decomposed the 3 EFs (measured with latent variables at age 17 years) into a Common EF factor (isomorphic to response inhibition ability) and 2 factors specific to updating and shifting. Less-restrained children had significantly lower scores on the Common EF factor, equivalent scores on the Updating-Specific factor, and higher scores on the Shifting-Specific factor than did the more-restrained children. The less-restrained group also had lower IQ scores, but this effect was entirely mediated by the EF components. Twin models indicated that the associations were primarily genetic in origin for the Common EF variable but split between genetics and nonshared environment for the Shifting-Specific variable. These results suggest a biological relation between individual differences in self-restraint and EFs, one that begins early in life and persists into late adolescence. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

The role of language in the development of the self I: Language acquisition.

The present essay discusses the aspects of the process of language acquisition in relation to the development of the self. Methodological issues are discussed; particularly the integration of maturational and environmental factors in the development of language. Theories of the development of transformational generative grammars point toward maturational aspects, but must be complemented by and integrated with the experience of evolving communication between child and caregivers. Progressive steps in the acquisition of language are discussed with specific reference to the influence of such developments on the concept of the self. Rudiments of a functional self are extant even from within the womb, and develop a conceptual and communicative capacity well before the onset of language. The functional and developmental gains acquired through the emergence of language are indicated in expanding and elaborating the scope and depth of preexistent capacities, and adding new and powerful dimensions to the experiential and expressive capacity of the self, especially in relation to self-awareness and a sense of identity. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Speaking to the trained ear: Musical expertise enhances the recognition of emotions in speech prosody.

Language and music are closely related in our minds. Does musical expertise enhance the recognition of emotions in speech prosody? Forty highly trained musicians were compared with 40 musically untrained adults (controls) in the recognition of emotional prosody. For purposes of generalization, the participants were from two age groups, young (18–30 years) and middle adulthood (40–60 years). They were presented with short sentences expressing six emotions—anger, disgust, fear, happiness, sadness, surprise—and neutrality, by prosody alone. In each trial, they performed a forced-choice identification of the expressed emotion (reaction times, RTs, were collected) and an intensity judgment. General intelligence, cognitive control, and personality traits were also assessed. A robust effect of expertise was found: musicians were more accurate than controls, similarly across emotions and age groups. This effect cannot be attributed to socioeducational background, general cognitive or personality characteristics, because these did not differ between musicians and controls; perceived intensity and RTs were also similar in both groups. Furthermore, basic acoustic properties of the stimuli like fundamental frequency and duration were predictive of the participants' responses, and musicians and controls were similarly efficient in using them. Musical expertise was thus associated with cross-domain benefits to emotional prosody. These results indicate that emotional processing in music and in language engages shared resources. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Beyond the pages of a book: Interactive book reading and language development in preschool classrooms.

The effects of a book reading technique called interactive book reading on the language and literacy development of 4 yr olds from low-income families were evaluated. Teachers read books to children and reinforced the vocabulary in the books by presenting concrete objects that represented the words and by providing children with multiple opportunities to use the book-related words. The teachers also were trained to ask open-ended questions and to engage children in conversations about the book and activities. This provided children with opportunities to use language and learn vocabulary in a meaningful context. Children who were in the interactive book reading intervention group scored significantly better than children in the comparison group on Peabody Picture Vocabulary Test—III and other measures of receptive and expressive language. Book reading and related activities can promote the development of language and literacy skills in young children. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The development of verbal memory in childhood and adolescence: Findings from the Munich Longitudinal Study.

The authors assessed developmental changes in verbal memory from the beginning of elementary school to late adolescence on the basis of data from the Munich Longitudinal Study. Major issues concern the stability of individual differences in strategy use as well as interrelationships among different components of verbal memory and the impact of educational context on verbal memory development. Long-term stability of strategic memory was low to moderate in late childhood and adolescence. Interrelations among the verbal memory components were also moderate and did not change much over time. Unexpectedly, no impact of educational context was found. Overall, individual differences in verbal memory performance develop very early in life and are relatively unaffected by differences in educational experiences. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Verbal working memory and language production: Common approaches to the serial ordering of verbal information.

[Correction Notice: An erratum for this article was reported in Vol 136(3) of Psychological Bulletin (see record 2010-07936-010). In the article “Verbal Working Memory and Language Production: Common Approaches to the Serial Ordering of Verbal Information” by Daniel J. Acheson and Maryellen C. MacDonald (Psychological Bulletin, 2009, Vol. 135, No. 1, pp. 50–68), the initial sentence of the text of the article (p. 50) contains an error. The first name of the researcher Andrew W. Ellis was listed incorrectly. The sentence should read as follows: Nearly 30 years ago, Andrew W. Ellis (1980) observed that errors on tests of verbal working memory (WM) paralleled those that occur naturally in speech production.] Verbal working memory (WM) tasks typically involve the language production architecture for recall; however, language production processes have had a minimal role in theorizing about WM. A framework for understanding verbal WM results is presented here. In this framework, domain-specific mechanisms for serial ordering in verbal WM are provided by the language production architecture, in which positional, lexical, and phonological similarity constraints are highly similar to those identified in the WM literature. These behavioral similarities are paralleled in computational modeling of serial ordering in both fields. The role of long-term learning in serial ordering performance is emphasized, in contrast to some models of verbal WM. Classic WM findings are discussed in terms of the language production architecture. The integration of principles from both fields illuminates the maintenance and ordering mechanisms for verbal information. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Individual differences in the development of sensation seeking and impulsivity during adolescence: Further evidence for a dual systems model.

Consistent with social neuroscience perspectives on adolescent development, previous cross-sectional research has found diverging mean age-related trends for sensation seeking and impulsivity during adolescence. The present study uses longitudinal data on 7,640 youth from the National Longitudinal Study of Youth Children and Young Adults, a nationally representative sample assessed biennially from 1994 to 2006. Latent growth curve models were used to investigate mean age-related changes in self-reports of impulsivity and sensation seeking from ages 12 to 24 years, as well individual differences in these changes. Three novel findings are reported. First, impulsivity and sensation seeking showed diverging patterns of longitudinal change at the population level. Second, there was substantial person-to-person variation in the magnitudes of developmental change in both impulsivity and sensation seeking, with some teenagers showing rapid changes as they matured and others maintaining relatively constant levels with age. Finally, the correlation between age-related changes in impulsivity and sensation seeking was modest and not significant. Together, these results constitute the first support for the dual systems model of adolescent development to derive from longitudinal behavioral data. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

The kids are alright: Growth and stability in personality development from adolescence to adulthood.

This longitudinal study provides a comprehensive analysis of continuity and change in personality functioning from age 18 to age 26 in a birth cohort (N?=?921) using the Multidimensional Personality Questionnaire (A. Tellegen, 1982). Data were analyzed using 4 different methods: differential continuity, mean-level change, individual differences in change, and ipsative change. Convergent evidence pointing toward personality continuity, as opposed to change, was found. The personality changes that did take place from adolescence to adulthood reflected growth in the direction of greater maturity; many adolescents became more controlled and socially more confident and less angry and alienated. Consistent with this, greater initial levels of maturity were associated with less personality change over time. The results indicate that the transition from adolescence to young adulthood is marked by continuity of personality and growth toward greater maturity. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Picking up speed in understanding: Speech processing efficiency and vocabulary growth across the 2nd year.

To explore how online speech processing efficiency relates to vocabulary growth in the 2nd year, the authors longitudinally observed 59 English-learning children at 15, 18, 21, and 25 months as they looked at pictures while listening to speech naming one of the pictures. The time course of eye movements in response to speech revealed significant increases in the efficiency of comprehension over this period. Further, speed and accuracy in spoken word recognition at 25 months were correlated with measures of lexical and grammatical development from 12 to 25 months. Analyses of growth curves showed that children who were faster and more accurate in online comprehension at 25 months were those who showed faster and more accelerated growth in expressive vocabulary across the 2nd year. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Preschool home literacy practices and children's literacy development: A longitudinal analysis.

In this 3-year longitudinal study, the authors tested and extended M. Sénéchal and J. Le Fevre's (2002) model of the relationships between preschool home literacy practices and children's literacy and language development. Parent-child reading (Home Literacy Environment Questionnaire plus a children's Title Recognition Test) and parental teaching of letters, words, and name writing were assessed 6 months prior to children's school entry. The 143 children (55% male participants; mean age = 5.36 years, SD = 0.29) attended Gold Coast, Australia government preschools. Parent-child reading and literacy teaching were only weakly correlated (r = .18) and were related to different outcomes consistent with the original model. Age, gender, memory, and nonverbal ability were controlled. Parental teaching was independently related to R. W. Woodcock's (1997) preschool Letter-Word Identification scores (R2change = 4.58%, p = .008). This relationship then mediated the relationships between parental teaching and Grades 1 and 2 letter-word identification, single-word reading and spelling rates, and phonological awareness (rhyme detection and phonological deletion). Parent-child reading was independently related to Grade 1 vocabulary (R2change = 5.6%, p = .005). Thus, both home practices are relevant but to different aspects of literacy and language development. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Self-esteem development from young adulthood to old age: A cohort-sequential longitudinal study.

The authors examined the development of self-esteem from young adulthood to old age. Data came from the Americans’ Changing Lives study, which includes 4 assessments across a 16-year period of a nationally representative sample of 3,617 individuals aged 25 years to 104 years. Latent growth curve analyses indicated that self-esteem follows a quadratic trajectory across the adult life span, increasing during young and middle adulthood, reaching a peak at about age 60 years, and then declining in old age. No cohort differences in the self-esteem trajectory were found. Women had lower self-esteem than did men in young adulthood, but their trajectories converged in old age. Whites and Blacks had similar trajectories in young and middle adulthood, but the self-esteem of Blacks declined more sharply in old age than did the self-esteem of Whites. More educated individuals had higher self-esteem than did less educated individuals, but their trajectories were similar. Moreover, the results suggested that changes in socioeconomic status and physical health account for the decline in self-esteem that occurs in old age. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Review of Discovering connections: A guide to the fun of bridging disability differences and Connecting kids: Exploring diversity together.

Reviews the books, Discovering connections: A guide to the fun bridging disability differences (1998) and Connecting kids: Exploring diversity together by Linda D. Hill (2001). These two books share a common theme: both provide practical solutions for bridging diversity gaps. The books are meant for anyone who wants to build inclusive groups of adults or children - professionals, volunteers, parents, people with disabilities, and family members and friends of people with disabilities. Discovering Connections provides a template to facilitate a group of adults from diverse backgrounds in the formation of an inclusive, cohesive group. There are 20 sessions organized around 10 themes, each with an armchair activity and a community connection idea. Each theme, in turn, is linked to two connecting skills. Connecting Kids is a "travel guide" for increasing diversity in children's groups. A set of 20 skills is presented, along with activity suggestions for cooperative games, creative activities, and nature experiences. These activities are designed to build social skills within a safe, inclusive environment and to help children respect and value individual differences. Those who are searching for practical suggestions and activities for creating inclusive groups of adults or children will likely find these books a useful addition to their resource library. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A heuristic path to psychotherapy integration: One early European development.

In the 1930s, the author accepted Freud's view that neurotic symptoms, dreams, and parapraxes were not chaotic brain activities but socially motivated structures. However, Freud did not pursue his social-psychological insight and was sidetracked by his individualistic metapsychology. The author made this next step, inspired by some psychoanalytic dissidents and the Prague philosophy of science, moving toward an interpersonal and small-group-system concept. The next decisive step to integration, enabled by the analysis of the intrapsychic-interpersonal fallacy, was the unifying concept of group schema, conceptualizing an individual's mental life as a group process. Simultaneously, a clinical system propelled by efficiency and cost effectiveness emerged in both Czechoslovakia and Canada, consisting of successive steps from a psychotherapeutic community to individual, group, and family therapy. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Influence of slight to moderate risk for birth hypoxia on acquisition of cognitive and language function in the preterm infant: A cross-sectional comparison with preterm-birth controls.

The cognitive and language performance of a group of 26 preterm-birth preschool and early school-age children with slight to moderate risk for perinatal hypoxia was compared with the performance of a preterm-birth comparison group of 26 children. Despite the relatively small discrepancy in degree of risk, the cognitive performance of the 2 groups diverged significantly. When data for children with known perinatal arterial pH were combined, a curvilinear (quadratic) regression model provided the best fit. Increasing acidosis was linearly related to decreases in cognitive skills, with the bend in the curve occurring well within the normal range of pH values. Hence, in the preterm infant, even minor risk for birth hypoxia may result in discernible deviation from the expected developmental trajectory. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Sociocultural influences on the development of verbal mediation: Private speech and phonological recoding in Saudi Arabian and British samples.

Cross-national stability in private speech (PS) and short-term memory was investigated in Saudi Arabian (n=63) and British (n=58) 4- to 8-year-olds. Assumed differences in child-adult interaction between the 2 nationality groups led to predictions of Gender × Nationality interactions in the development of verbal mediation. British boys used more self-regulatory PS than British girls, whereas there was no such difference for the Saudi group. When age, verbal ability, and social speech were controlled, boys used slightly more self-regulatory PS than girls. Self-regulatory PS was related to children's use of phonological recoding of visually presented material in a short-term memory task, suggesting that PS and phonological recoding represent different facets of a domain-general transition toward verbal mediation in early childhood. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A cross-cultural, multidisciplinary proof of the newly discovered developmental linguistic law of concordance of speech and motor development in children.

Humorously describes fictional studies "proving" that motor and language development occur concurrently ("hand in hand") and that this development is independent of culture. (PsycINFO Database Record (c) 2010 APA, all rights reserved)