Verbal Communication,Nonverbal Communication,and Private Speech in Lower and Middle Socioeconomic Status Preschool Children

Three types of communication—verbal, nonverbal, and private speech—were investigated in 4- and 5-year-old children. Multiple analyses of variance (MANOVAs) without IQ controlled and multiple analyses of covariance (MANCOVAs) with IQ as a covariate were computed and followed by ANOVAs and ANCOVAs to determine the effects of sex, age, and socioeconomic status (SES) on each of these types of communication. The ANOVAs and the ANCOVAs yielded the same conclusions. Results indicated that age and SES, but not sex, influence the use of the three communication types. From age 4 to age 5, private speech decreased for middle SES children and remained the same for lower SES children. Although lower SES children had more nonverbal communication at both age levels than middle SES children, nonverbal communication decreased for middle SES children and increased for lower SES children between the ages of 4 and 5 years. Both lower and middle SES groups increased in verbal communication between the two ages. The middle SES 4-year-olds used more verbal communication than their lower SES counterparts, and the difference was maintained at age 5. Although IQ is related to verbal communication, statistically controlling for the effects of IQ did not change the conclusions.     

Individual differences in neural mechanisms of selective auditory attention in preschoolers from lower socioeconomic status backgrounds: an event‐related potentials study

Selective attention, the ability to enhance the processing of particular input while suppressing the information from other concurrent sources, has been postulated to be a foundational skill for learning and academic achievement. The neural mechanisms of this foundational ability are both vulnerable and enhanceable in children from lower socioeconomic status (SES) families. In the current study, we assessed individual differences in neural mechanisms of this malleable brain function in children from lower SES families. Specifically, we investigated the extent to which individual differences in neural mechanisms of selective auditory attention accounted for variability in nonverbal cognitive abilities in lower SES preschoolers. We recorded event‐related potentials (ERPs) during a dichotic listening task and administered nonverbal IQ tasks to 124 lower SES children (77 females) between the ages of 40 and 67 months. The attention effect, i.e., the difference in ERP mean amplitudes elicited by identical probes embedded in stories when attended versus unattended, was significantly correlated with nonverbal IQ scores. Larger, more positive attention effects over the anterior and central electrode locations were associated with superior nonverbal IQ performance. Our findings provide initial evidence for prominent individual differences in neural indices of selective attention in lower SES children. Furthermore, our results indicate a noteworthy relationship between neural mechanisms of selective attention and nonverbal IQ performance in lower SES preschoolers. These findings provide the basis for future research to identify the factors that contribute to such individual differences in neural mechanisms of selective attention.     

Socioeconomic background,nonverbal IQ and school absence affects the development of vocabulary and reading comprehension in children living in severe poverty

Few studies have examined how socioeconomic status (SES) affects two essential parts of human development, namely vocabulary and reading comprehension, in children facing severe poverty. The Roma population is the largest minority group in Europe, the majority of whom live in severe poverty. This study compared the development of 322 Roma children with the development of 178 non‐Roma children, between the ages of 7 and 10 years, living in Romania. The Roma children had poorer initial vocabulary and reading comprehension skills as well as slower growth rates for both compared to the non‐Roma children. Importantly, SES had a direct influence on growth in both reading comprehension and vocabulary. The effect of SES was partly mediated by school absence and nonverbal IQ. This is a powerful finding since it suggests that poverty may have detrimental effects not only on reading but also on the development of verbal abilities.     

An exploratory analysis of American Indian children's cultural engagement, fluid cognitive skills, and standardized verbal IQ scores

This exploratory cross-sectional study examined fluid cognitive skills and standardized verbal IQ scores in relation to cultural engagement amongst Tohono O'odham children (N = 99; ages 7 to 12 years). Guardians with higher socioeconomic status engaged their children in more cultural activities, and participation in more cultural activities contributed to higher standardized verbal IQ scores. Mean cognitive skill scores varied as a function of age and Tohono O'odham language knowledge. Children who understood and/or spoke Tohono O'odham started out with lower average scores than did children with no language knowledge, but mean scores generally increased in the older age groups such that they were equal to or higher than those of nonspeakers by age 9. Children with higher fluid cognitive skill scores had higher standardized verbal IQ scores than did children with lower scores.     

Preschool Children's Collaborative Problem-Solving Interactions: The Role of Gender,Pair Type,and Task

The purpose of this study was to investigate gender differences in problem-solving and conflict-resolution skills in preschool children. Children between 4 and 5 years of age completed 3 problem-solving tasks with either a same-sex or a different-sex peer. Children's verbal and nonverbal interactions were analyzed. Girls used mitigation more often than did boys. Mixed-sex dyads engaged in controlling verbal interactions more often than same-sex dyads. There were relationships between verbal and nonverbal behaviors and task success; these relationships also differed across pair types. The results of the study demonstrate that the gender differences in types of verbal interactions previously observed in preschool children's free play are also present in their problem-solving interactions and that children are able to alter the types of behaviors they use depending upon both partner gender and the type of task involved.     

Children's cognitive ability from 4 to 9 years old as a function of prenatal cocaine exposure, environmental risk, and maternal verbal intelligence

This study examined the effects of prenatal cocaine exposure, environmental risk, and maternal verbal intelligence on children's cognitive ability. Gender and age were examined as moderators of potential cocaine exposure effects. The Stanford-Binet IV intelligence test was administered to 231 children (91 cocaine exposed, 140 unexposed) at ages 4, 6, and 9 years. Neonatal medical risk and other prenatal exposures (alcohol, cigarettes, and marijuana) were also examined for their unique effects on child IQ. Mixed models analysis indicated that prenatal cocaine exposure interacted with gender, as cocaine-exposed boys had lower composite IQ scores. Age at assessment did not moderate this relation, indicating that cocaine-exposed boys had lower IQs across this age period. A stimulating home environment and high maternal verbal IQ also predicted higher composite IQ scores. Cocaine-exposed boys had lower scores on the Abstract/Visual Reasoning subscale, with trends for lower scores on the Short-Term Memory and Verbal Reasoning subscales, as exposure effects were observed across domains. The findings indicate that cocaine exposure continues to place children at risk for mild cognitive deficits into preadolescence. Possible mechanisms for the Exposure x Gender interaction are discussed.     

Children’s informational reliance during inconsistent communication: The public-private distinction

This study examined whether children recognize that when there is a discrepancy between what is expressed in public versus what is expressed in private, the private expression is more indicative of the true state of affairs. Participants (3-, 4-, and 5-year-olds) were shown a video in which a girl expressed that she liked the refreshments her friend had made when the friend was present but expressed dislike when the friend was not present. The results of the first two experiments revealed that older children were significantly more likely to rely on private information than on public information to interpret the inconsistent messages, whereas 3-year-olds were not. In the third experiment, older children performed better when the inconsistency occurred in the nonverbal domain compared with the verbal domain. The finding that even 4-year-olds show some signs of understanding the private-public distinction is remarkable given that previous research on inconsistent communication indicated that children’s understanding typically comes much later. Possible explanations for this discrepancy are discussed.     

Intelligence profiles in children and adolescents with left temporal lobe epilepsy: relationship to language laterality

Pre- and postoperative IQ profiles were examined in children and adolescents with left temporal-lobe epilepsy. Participants were grouped according to their pattern of speech dominance, as indicated by the intracarotid sodium amobarbital procedure. Seven participants with typical (left hemisphere) speech representation were matched for age and sex to seven participants with atypical (bilateral or right hemisphere) speech representation. The group with atypical speech representation tended to perform worse pre- and postoperatively on several verbal and nonverbal subtests. Unlike Strauss et al.'s (1990) sample, however, the groups did not differ significantly on pre- or postoperative Performance IQ. The results suggest that when individuals are matched closely for age and sex, there may only be limited support for a nonverbal "crowding" hypothesis. Atypical speech representation in children and adolescents with early temporal-lobe epilepsy appears to be associated with lowered performance on both verbal and nonverbal IQ subtests.     

Verbal and nonverbal communication in at-risk mother-child dyads: Implications for relationship quality and developing positive social behaviours in middle-childhood

Factors that promote healthy relationships have been understudied. The objective of this study is to examine mother–child verbal and nonverbal communication (separately), relationship quality and children's positive social behaviours in an at-risk sample framed within the developmental psychopathology approach. Mothers are part of a 35-year longitudinal prospective study who, as children, were rated by peers on measures of aggression and social withdrawal. These mothers, with their own 9- to 13-year-old children, participated in conflict and game-playing tasks. Verbal and nonverbal communication were coded separately using systematic observational measures. Maternal childhood histories of aggression and withdrawal predicted poorer dyad verbal communication, relationship quality and children's positive social behaviours. Frequently displayed positive verbal and nonverbal communication were associated with better relationship quality and children's positive social behaviours. The results highlight the unique contributions of verbal and nonverbal communication to adaptive development and to promoting healthy relationships in at-risk families during middle-childhood.     

Detecting Deceit Via Analyses of Verbal and Nonverbal Behavior in Children and Adults

This experiment examined children's and undergraduates' verbal and nonverbal deceptive behavior, and the extent to which their truths and lies could be correctly classified by paying attention to these responses. Participants (N= 196) aged 5–6, 10–11, and 14–15, as well as university undergraduates, participated in an erasing the blackboard event, and told the truth or lied about the event afterwards. Nonverbal and verbal responses were coded, the latter with Criteria‐Based Content Analysis and Reality Monitoring. Although children and undergraduates demonstrated different behaviors (for example, the children obtained lower CBCA scores and made more movements), actual cues to deceit were remarkably similar across different age groups (for example, both 5–6‐year‐olds and undergraduates obtained lower CBCA scores and made fewer movements while lying). A combination of verbal and nonverbal lie detection methods resulted in more correct classifications of liars and truth tellers than the verbal and nonverbal lie detection methods individually, with the combined method obtaining hit rates as high as 88%.     

Verbal deficits in children with 47, XXY and 47, XXX karyotypes: A descriptive and experimental study

This study examines the intellectual abilities of children with a supernumerary X chromosome complement. In the first part, 33 boys and 13 girls, who were ascertained through a neonatal screening project, were given a WISC-R. Comparisons with siblings revealed a significant deficit in the verbal ability of the extra X children while their nonverbal skills were normal. The second part investigated the specific verbal impairments of these children with a sentence verification task. The results of comparisons with normal children indicated poorer performance by the supernumerary X groups, particularly on the more difficult task items. Correlations between measures indicated that verbal IQ was more strongly related to sentence verification performance than performance IQ. The final section deals with some of the biological factors that may contribute to the verbal deficits in these children. The results indicate that the most verbally impaired children were those with the greatest delays in physical growth, as indicated by bone age and dermatoglyphic measures. These findings are discussed in terms of the influence of chromosomally determined growth rates upon the brain, its maturity, and consequent capacity to develop specific cognitive functions.     

Children's intellectual and emotional-behavioral adjustment at 4 years as a function of cocaine exposure,maternal characteristics,and environmental risk

The authors examined 223 children at age 4 years for the effects of prenatal cocaine exposure, exposure to other substances, maternal and environmental risk factors, and neonatal medical problems on IQ, externalizing problems, and internalizing problems. Regression analyses showed that maternal verbal IQ and low environmental risk predicted child IQ. Cocaine exposure negatively predicted children's overall IQ and verbal reasoning scores, but only for boys. Cocaine exposure also predicted poorer short-term memory. Maternal harsh discipline, maternal depressive symptoms, and increased environmental risk predicted externalizing problems. In contrast, only maternal depressive symptoms predicted internalizing problems. These findings indicate that early exposure to substances is largely unrelated to subsequent IQ or adjustment, particularly for girls.     

Individual and developmental differences in eyewitness recall and suggestibility in children with intellectual disabilities

This study examined two key issues: (1) whether there were developmental improvements in eyewitness memory performance for children with intellectual disabilities (ID); and (2) whether standardised measures of cognitive ability and suggestibility would relate to eyewitness recall and suggestibility. Children with ID and age‐matched controls (ages 8/9 and 12 years) watched a video of a crime and were asked a range of open‐ended and specific questions about the event in a subsequent interview. Free recall increased between the two age levels for children with and without ID, but at a faster rate for those without ID. For other question types, differences in performance between children with and without ID were far more marked than age differences. Standardised measures of interrogative suggestibility (Gudjonsson Suggestibility Scale, GSS), verbal IQ, non‐verbal IQ, mental age and speed of information processing were related to eyewitness performance. In particular, higher eyewitness recall scores (free recall, non‐leading specific questions) were related to higher scores on the standardised GSS free recall measure; and higher eyewitness suggestibility scores were related to higher scores on the standardised GSS suggestibility measures. Mental age was a better predictor of performance on a range of eyewitness memory question types than verbal or non‐verbal IQ; and speed of information processing showed some relationships with eyewitness performance. Copyright © 2006 John Wiley & Sons, Ltd.     

Simultaneous and successive syntheses and intelligence

Recent studies on information processing have developed an alternative model of mental abilities which constitutes an integration of Russian clinical research and North American factor analytic research. This model proposes that information may be processed in a simultaneous synthesis or a successive synthesis. The present study examines variations in these syntheses in three intelligence groups in order to identify the types of information processing characteristic of different intelligence groups. A stratified sampling of verbal and nonverbal IQ was used to select 60 boys of age 9–10 in each of three verbal IQ ranges: 71–90, 91–110, and 111–130. A battery of tests used in previous research was administered to all subjects. Multivariate analyses of variance and discriminant analyses indicated that the IQ groups differed markedly on tests used to identify simultaneous synthesis, most notably Raven's Progressive Matrices, and differed slightly less on tests of successive synthesis. Factor analyses of the test intercorrelations for each group revealed more factorial invariance across the IQ groups than had been suggested by a previous exploratory study. It was concluded that strong individual differences exist in simultaneous and successive syntheses over the major portion of the standardized intelligence range, and no high degree of specialization of information processing was characteristic of an intelligence group.     

Nonverbal communication during the learner lesson with a professional driving instructor: A novel investigation

BackgroundFundamental for the development of the driving and road use skills of the young driver is learning to drive through driving instruction and, in graduated driver licensing programs such as in Australia, driving supervision. In Queensland young drivers are required to log a minimum of 100 h supervised practice, with recent research revealing that parents provide most of this supervision. Queensland also offers young drivers a 10-h 3-for-1 bonus for professional driving instruction, such that one hour of professional instruction can be logged as three hours of practice, to a maximum of 30 logbook hours. Recent research efforts have begun to provide insight into the nature of the verbal instruction of both parents and professional instructors, and into the nonverbal communication between parents and learners. However nothing is known regarding the nonverbal communication between professional instructors and learners.MethodTen learner lessons (five male learners) with four professional instructors (four males) were captured via GoPro cameras. The nonverbal communication during the first, middle, and last 10 min of each lesson was coded as being posture and body orientation, gestures, facial expressions, proximity, humour, and eye contact, within the context of the accompanying verbal communication according to the value of (a) eager, or (b) cautious; the valence of (a) neutral, (b) positive, or (c) negative; and the purpose of (a) rapport, or (b) communication.ResultsOverall, posture and body orientation was the most common mechanism of nonverbal communication, while facial expressions and proximity were the least common mechanisms of nonverbal communication. In general the beginning, the middle, and the end of the lessons were characterised by a plethora of neutral, cautious interactions, and positive, eager interactions. However it is noteworthy that the rates at which learners and instructors engaged in these behaviours were found to change across the lesson. Specifically learners actively communication nonverbally through mechanisms such as eye contact, facial expressions and humour, while instructors appeared to manage building rapport and communicating safe vehicle and road use through nonverbal communication such as gestures, facial expressions and posture and body orientation, summarised in a model comprising a continuum of instruction.DiscussionWhile nonverbal communication is fundamental for effective verbal communication, and on occasion can replace verbal communication, and as such the professional – and the parental – driving lesson should optimise the use of nonverbal communication, at this time the optimal nature of nonverbal communication remains unknown. In addition, optimal verbal and nonverbal communication specifically suited to the driving context which involves a dynamic environment outside the vehicle, and at times a dynamic environment inside the vehicle, remains yet to be identified. The research findings provide unique insight into the nature of the nonverbal communication used by both learner drivers and professional driving instructors, in addition to the continuum of instruction model. As such, the findings provide a solid foundation for future research into, and guidance regarding, optimising the learner driving lesson.     

Age-related changes in verbal and nonverbal memory during early childhood

In the present experiment, age-related changes in verbal and nonverbal memory performance by 2- to 4-year-old children were assessed. All children participated in the same unique event, and their memory of that event was assessed after a 24-hr delay. Overall, children's performance on each memory measure increased as a function of age. Furthermore, children's performance on both the verbal and nonverbal memory tests was related to their language ability; children with more advanced language skills reported more during the verbal interview and exhibited superior nonverbal memory relative to children with less advanced language skills. Finally, children's verbal recall of the event lagged behind both their nonverbal recall and their general verbal skill. It is hypothesized that despite large strides in language acquisition. preschool-age children continue to rely primarily on nonverbal representations of past events. The findings have important implications for the phenomenon of childhood amnesia.     

The relation of hostile nonverbal communication styles to popularity in preadolescent children

Some assumptions of interpersonal theory were tested among a population of preadolescent children. Children were videotaped while interacting with a same-sex peer, and their verbal and nonverbal communications were judged by other peers who were not participants in the study. Children rated as socially unattractive by their peers had communication styles characterized by nonverbal visual hostility. These results support the assumption that negative nonverbal communications are associated with relationship difficulties.     

Cognitive and developmental influences in visual-motor integration skills in young children

Measures of visual-motor integration skills continue to be widely used in psychological assessments with children. However, the construct validity of many visual-motor integration measures remains unclear. In this study, we investigated the relative contributions of maturation and cognitive skills to the development of visual-motor integration skills in young children (N = 856). We used a block regression analysis to determine the contribution of maturation, as indicated by age, followed by broad cognitive factors (Study 1) and subsequently by individual subtests in verbal and nonverbal domains subsumed under each factor (Study 2) in explaining score variance of the Bender Visual-Motor Gestalt Test (2nd ed.; BG-II; Brannigan & Decker, 2003) Copy and Recall scores in children between the ages of 4 and 7 years. Results confirm that maturation accounted for a large proportion of variance in both BG-II Copy and Recall performance, above which Stanford-Binet Intelligence Scale (5th ed.; SB-5; Roid, 2003) Quantitative Reasoning and Fluid Reasoning factors significantly contributed to visual-motor integration performance for the Copy phase, and SB-5 Quantitative Reasoning and Visual-Spatial factors accounted for a significant amount of variance for the Recall phase. Additionally, nonverbal domains were more related to visual-motor performance than verbal domains. Results from this study are interpreted to suggest nonverbal reasoning and visual-spatial attention are important contributing factors to visual-motor integration, as measured by the BG-II. Developmental implications of visual-motor integration skills, nonverbal problem solving, and mathematical competence are discussed.     

Tactile discrimination, response mode, and interhemispheric communication by learning disabled children.

32 right-handed, learning disabled children aged 8-10 yr., 11-13 yr., and 14-16 yr. were presented a tactile discrimination task. Pairs of fabrics of different or the same texture were presented to the same hand (uncrossed condition) or alternating hands (crossed condition). Discrimination errors were compared using a verbal response mode and a nonverbal response mode. Analysis indicated that the number of crossed errors was significantly greater in the verbal response mode than in the nonverbal response mode for only the youngest children. These results suggest selective attention-activation bias and/or hemispheric processing limitations for younger learning disabled children.     

Apolipoprotein e gene variability and cognitive functions at age 79: a follow-up of the Scottish mental survey of 1932

Apolipoprotein E (APOE) genotype is a possible influence on nonpathological cognitive aging. The authors studied 462 community-dwelling, 79-year-old people born in 1921, whose childhood IQ had been assessed in the Scottish Mental Survey of 1932 (Scottish Council for Research in Education, 1933). Adjusting for sex, childhood IQ, and self-reported illnesses, the authors found that those with an APOE e4 allele had significantly lower Wechsler Logical Memory (D. Wechsler, 1987) scores than those without an e4 allele. Those people with APOE s2/e3 genotypes had significantly higher Wechsler Logical Memory scores than e3/s3, who were significantly higher than e3/e4. Neither nonverbal reasoning nor verbal fluency were affected. In this sample, APOE genotype contributed to verbal memory in old age.