The Role of Gesture in Children's Comprehension of Spoken Language:Now They Need It, Now They Don't

Two experiments investigated gesture as a form of external support for spoken language comprehension. In both experiments, children selected blocks according to a set of videotaped instructions. Across trials, the instructions were given using no gesture, gestures that reinforced speech, and gestures that conflicted with speech. Experiment 1 used spoken messages that were complex for preschool children but not for kindergarten children. Reinforcing gestures facilitated speech comprehension for preschool children but not for kindergarten children, and conflicting gestures hindered comprehension for kindergarten children but not for preschool children. Experiment 2 tested preschool children with simpler spoken messages. Unlike Experiment 1, preschool children's comprehension was not facilitated by reinforcing gestures. However, children's comprehension also was not hindered by conflicting gestures. Thus, the effects of gesture on speech comprehension depend both on the relation of gesture to speech, and on the complexity of the spoken message.     

Do Iconic Hand Gestures Really Contribute to the Communication of Semantic Information in a Face-to-Face Context?

Previous research has shown that iconic gestures are effective at communicating semantic information, particularly about the size and relative position of objects. However, the conclusions of these experiments have been somewhat limited by the fact that the methodology has typically involved presenting gesture–speech samples on video rather than in an actual face-to-face context. Because these different viewing conditions can impact on addressees’ behavior and perception, and therefore potentially impact on the amount of information they receive from gestures, the present study compares the communicative effectiveness of iconic gestures when viewed in a face-to-face context compared to when viewed on video. The results are quite striking in that gestures seemed at least as effective, and in some cases even more effective at communicating position and size information when they occurred in the face-to-face condition compared to video.     

The Relation Between Gesture and Speech in Congenitally Blind and Sighted Language-Learners

Gesture is widely regarded to play an important role in communication, both in conjunction with and independent of speech. Indeed, gesture is known to develop even before the onset of spoken words. However, little is known about the communicative conditions under which gesture emerges. The aim of this study was to explore the role of vision in early gesturing. We examined gesture development in 5 congenitally blind and 5 sighted toddlers videotaped longitudinally between the ages of 14 and 28 months in their homes while engaging in free play with a parent or experimenter. All of the blind children were found to produce at least some gestures during the one-word stage of language development. However, gesture production was relatively low among the blind children relative to their sighted peers. Moreover, although blind and sighted children produced the same overall set of gesture types, the distribution of gesture types across categories differed. In addition, blind children used gestures primarily to communicate about objects that were nearby, while sighted children used them for nearby as well as distally located objects. These findings suggest that gesture may play different roles in the language-learning process for sighted and blind children. Nevertheless, they also make it clear that gesture is a robust phenomenon of early communicative development, emerging even in the absence of experience with a visual model.     

Negotiating Languages in Immigrant Families

This study is about the multifaceted nature of language use in immigrant families. Following earlier explorations of language in the segmented assimilation framework and using adolescent and parental data from the 1995 wave of the Children of Immigrants Longitudinal Study, this article examines how adolescents’ use of English with their parents relates to their proficiency in English and ethnic languages, and their personal language preferences, as well as their parents’ language proficiency and use. The findings suggested that adolescent language choice in child–parent interactions reflected the family’s ways to negotiate the distinct linguistic repertoires of immigrant parents and their children. The adolescent use of English was not necessarily associated with social and emotional estrangement between generations. Even when adolescents generally preferred English, they were less likely to use English in child–parent interactions if their parents, particularly their mothers, were less proficient in English. On the other hand, adolescents were more likely to speak English to their parents if their mothers were proficient in English, regardless of what language parents used with the children. Parents who spoke to their children in English likely responded to their children’s doubts about their ethnic language proficiency and were linguistically and emotionally ready to make that transition.     

Not All Gestures are Created Equal: The Effects of Typical and Atypical Iconic Gestures on Narrative Comprehension

Observing hand gestures during learning consistently benefits learners across a variety of tasks. How observation of gestures benefits learning, however, is yet unanswered, and cannot be answered without further understanding which types of gestures aid learning. Specifically, the effects of observing varying types of iconic gestures are yet to be established. Across two studies we examined the role that observing different types of iconic hand gestures has in assisting adult narrative comprehension. Some iconic hand gestures (typical gestures) were produced more frequently than others (atypical gestures). Crucially, observing these different types of gestures during a narrative comprehension task did not provide equal benefit for comprehension. Rather, observing typical gestures significantly enhanced narrative comprehension beyond observing atypical gestures or no gestures. We argue that iconic gestures may be split into separate categories of typical and atypical gestures, which in turn have differential effects on narrative comprehension.     

Representational Gesture,Pointing Gesture,and Memory Recall of Preschool Children

This study investigated the effects of two different types of hand gestures on memory recall of preschool children. Experiment 1 found that children who were instructed to use representational gestures while retelling an unfamiliar story retrieved more information about the story than children who were asked to hold their hands still. In addition, children who engaged in some forms of bodily movements other than hand gestures also recalled better. Experiment 2 showed that a simpler and more basic form of gesture, the pointing gesture, had a similar effect on recollecting and retelling the details of a story. The findings provide evidence for the beneficial effects of hand gestures, both representational gestures and pointing gestures, on cognitive processes such as memory retrieval and verbal communication for preschool aged children.     

Multimodal representational gestures in the transition to multi-word productions

The aim of this study was to analyze the use of representational gestures from a multimodal point of view in the transition from one-word to multi-word constructions. Twenty-one Spanish-speaking children were observed longitudinally at 18, 21, 24, and 30 months of age. We analyzed the production of deictic, symbolic, and conventional gestures and their coordination with different verbal elements. Moreover, we explored the relationship between gestural multimodal and unimodal productions and independent measures of language development. Results showed that gesture production remains stable in the period studied. Whereas deictic gestures are frequent and mostly multimodal from the beginning, conventional gestures are rare and mainly unimodal. Symbolic gestures are initially unimodal, but between 24 and 30 months of age, this pattern reverses, with more multimodal symbolic gestures than unimodal. In addition, the frequency of multimodal representational gestures at specific ages seems to be positively related to independent measures of vocabulary and morphosyntax development. By contrast, the production of unimodal representational gestures appears negatively related to these measures. Our results suggest that multimodal representational gestures could have a facilitating role in the process of learning to combine meanings for communicative goals.     

How What We See and What We Know Influence Iconic Gesture Production

In face-to-face communication, speakers typically integrate information acquired through different sources, including what they see and what they know, into their communicative messages. In this study, we asked how these different input sources influence the frequency and type of iconic gestures produced by speakers during a communication task, under two degrees of task complexity. Specifically, we investigated whether speakers gestured differently when they had to describe an object presented to them as an image or as a written word (input modality) and, additionally, when they were allowed to explicitly name the object or not (task complexity). Our results show that speakers produced more gestures when they attended to a picture. Further, speakers more often gesturally depicted shape information when attended to an image, and they demonstrated the function of an object more often when they attended to a word. However, when we increased the complexity of the task by forbidding speakers to name the target objects, these patterns disappeared, suggesting that speakers may have strategically adapted their use of iconic strategies to better meet the task’s goals. Our study also revealed (independent) effects of object manipulability on the type of gestures produced by speakers and, in general, it highlighted a predominance of molding and handling gestures. These gestures may reflect stronger motoric and haptic simulations, lending support to activation-based gesture production accounts.     

Household Context,Generational Status,and English Proficiency Among the Children of African Immigrants in the United States1

This study examines how household and parental-level determinants affect English proficiency among the children of African immigrants in the United States. Within immigrant families, the study finds that children’s level of proficiency has a stronger positive association with the proficiency of their mothers than with that of their fathers. Children’s level of English proficiency significantly increases as the number of other English-proficient children within their household increases. These impacts are stronger on the proficiency levels of first compared to second-generation children. Levels of proficiency are, however, lowest among children in families from Portuguese-speaking countries followed by their counterparts in families from countries where indigenous languages and Arabic are dominant. Although proficiency levels generally improve with increasing generational status, these improvements are smallest for children in families from Portuguese-speaking countries. Except for children in families from English-speaking countries, the largest improvements to proficiency with increasing generational status were observed among children in families from indigenous language backgrounds.     

Trajectories of English Acquisition among Foreign‐born Spanish‐Language Children in the United States

The rapidity with which immigrant children learn the dominant language of their country of residence has important short‐term and long‐term consequences for their educational achievements and for their future. In this paper I use US Census data to model trajectories of English acquisition among foreign‐born children living in Spanish‐language households. The results show, as expected, that children's English proficiency increases with length of residence in the United States. However, the results also show a clear trend by age at arrival. The older children are when they arrive in the United States, the less rapid their progress in acquiring proficiency in English.     

Symbolic play provides a fertile context for language development

In this study, we test the hypothesis that symbolic play represents a fertile context for language acquisition because its inherent ambiguity elicits communicative behaviors that positively influence development. Infant–caregiver dyads (N = 54) participated in two 20-minute play sessions six months apart (Time 1 = 18 months, Time 2 = 24 months). During each session, the dyads played with two sets of toys that elicited either symbolic or functional play. The sessions were transcribed and coded for several features of dyadic interaction and language; infants’ linguistic proficiency was measured via parental report. The two contexts elicited different communicative and linguistic behaviors. Notably, the symbolic play condition resulted in significantly greater conversational turn-taking than functional play, and also resulted in the greater use of questions and mimetics in infant-directed speech (IDS). In contrast, caregivers used more imperative clauses in functional play. Correlational and regression analyses showed that frequent properties of symbolic play (i.e., turn-taking, yes–no questions, mimetics) were positively related to infants’ language proficiency, whereas frequent features of functional play (i.e., imperatives in IDS) were negatively related. The results provide evidence supporting the hypothesis that symbolic play is a fertile context for language development, driven by the need to negotiate meaning.     

How Do We Communicate About Pain? A Systematic Analysis of the Semantic Contribution of Co-speech Gestures in Pain-focused Conversations

The purpose of the present study was to investigate co-speech gesture use during communication about pain. Speakers described a recent pain experience and the data were analyzed using a ‘semantic feature approach’ to determine the distribution of information across gesture and speech. This analysis revealed that a considerable proportion of pain-focused talk was accompanied by gestures, and that these gestures often contained more information about pain than speech itself. Further, some gestures represented information that was hardly represented in speech at all. Overall, these results suggest that gestures are integral to the communication of pain and need to be attended to if recipients are to obtain a fuller understanding of the pain experience and provide help and support to pain sufferers.     

Co-Speech Gesture Mimicry in the Process of Collaborative Referring During Face-to-Face Dialogue

Mimicry has been observed regarding a range of nonverbal behaviors, but only recently have researchers started to investigate mimicry in co-speech gestures. These gestures are considered to be crucially different from other aspects of nonverbal behavior due to their tight link with speech. This study provides evidence of mimicry in co-speech gestures in face-to-face dialogue, the most common forum of everyday talk. In addition, it offers an analysis of the functions that mimicked co-speech gestures fulfill in the collaborative process of creating a mutually shared understanding of referring expressions. The implications bear on theories of gesture production, research on grounding, and the mechanisms underlying behavioral mimicry.     

Beneficial effects of the mother's voice on infants’ novel word learning

The maternal voice appears to have a special role in infants’ language processing. The current eye‐tracking study investigated whether 24‐month‐olds (n = 149) learn novel words easier while listening to their mother's voice compared to hearing unfamiliar speakers. Our results show that maternal speech facilitates the formation of new word–object mappings across two different learning settings: a live setting in which infants are taught by their own mother or the experimenter, and a prerecorded setting in which infants hear the voice of either their own or another mother through loudspeakers. Furthermore, this study explored whether infants’ pointing gestures and novel word productions over the course of the word learning task serve as meaningful indexes of word learning behavior. Infants who repeated more target words also showed a larger learning effect in their looking behavior. Thus, maternal speech and infants’ willingness to repeat novel words are positively linked with novel word learning.     

Memory for Visual-Spoken Language in Children and Adults

Two experiments examined how developmental changes in processing speed, reliance on visual articulatory cues, memory retrieval, and the ability to interpret representational gestures influence memory for spoken language presented with a view of the speaker (visual-spoken language). Experiment 1 compared 16 children (M = 9.5 yrs.) and 16 young adults, using an immediate recall procedure. Experiment 2 replicated the methods with new speakers, stimuli, and participants. Results showed that both children's and adults' memory for sentences was aided by the presence of visual articulatory information and gestures. Children's slower processing speeds did not adversely affect their ability to process visual-spoken language. However, children's ability to retrieve the words from memory was poorer than adults'. Children's memory was also more influenced by representational gestures that appeared along with predicate terms than by gestures that co-occurred with nouns.     

Nonverbal Communication in Humans

Nonverbal behavior includes all communicative acts except speech. Communication means conveying information through signals. We use body language without being aware of it, perceive and interpret other people's body language. Three classes of nonverbal behavior are the verbal-vocal, nonverbal-vocal, and nonverbal-nonvocal. Several gestures illustrate the relationship between verbal and nonverbal behavior. Nonverbal phenomena are most important in the structuring and occurrence of interpersonal communication and the movement-to-movement regulation of the interaction. Nonverbal signs help regulate the system, cueing hierarchy and priority among communicators, signaling the flow of interaction, and providing meta-communication and feedback. Experiences teach us unconsciously that space communicates.     

Statistical word segmentation: Anchoring learning across contexts

The present experiments were designed to assess infants' abilities to use syllable co-occurrence regularities to segment fluent speech across contexts. Specifically, we investigated whether 9-month-old infants could use statistical regularities in one speech context to support speech segmentation in a second context. Contexts were defined by different word sets representing contextual differences that might occur across conversations or utterances. This mimics the integration of information across multiple interactions within a single language, which is critical for language acquisition. In particular, we performed two experiments to assess whether a statistically segmented word could be used to anchor segmentation in a second, more challenging context, namely speech with variable word lengths. The results of Experiment 1 were consistent with past work suggesting that statistical learning may be hindered by speech with word-length variability, which is inherent to infants' natural speech environments. In Experiment 2, we found that infants could use a previously statistically segmented word to support word segmentation in a novel, challenging context. We also present findings suggesting that this ability was associated with infants' early word knowledge but not their performance on a cognitive development assessment.