This study examined the development of joint attention in 95 infants assessed between 9 and 18 months of age. Infants displayed significant test -retest reliability on measures of following gaze and gestures (responding to joint attention, RJA) and in their use of eye contact to establish social attention coordination (initiating joint attention, IJA). Infants displayed a linear, increasing pattern of age-related growth on most joint attention measures. However, IJA was characterized by a significant cubic developmental pattern. Infants with different rates of cognitive development exhibited different frequencies of joint attention acts at each age, but did not exhibit different agerelated patterns of development. Finally, 12-month RJA and 18-month IJA predicted 24-month language after controlling for general aspects of cognitive development.The human capacity for social attention coordination has been referred to as joint attention (Bakeman & Adamson, 1984;Bruner & Sherwood, 1983). Different behavioral manifestations of joint attention begin to emerge in the first 6 months of life (D'Entremont, Hains, & Muir, 1997;Farroni, Massaccesi, & Francesca, 2002;Morales, Mundy, & Rojas, 1998) and continue to develop at least through 3 years of age (Adamson, Bakeman, & Dekner, 2004;Carpenter, Nagell, & Tomasello, 1998). These different infant joint attention behaviors may be used for declarative and instrumental-imperative functions (Bates, Benigni, Bretherton, Camaioni, & Volterra, 1979), as well as to initiate or respond to bids in interactions with social partners (Seibert, Hogan, & Mundy, 1982).Various labels have been used to refer to these behavioral dimensions of infant joint attention (Carpenter et al., 1998). Here we adopt the nomenclature initially suggested by Seibert et al. (1982) that is currently widely used in the research literature as well as in multidimensional assessments of early social communication development (e.g., Fidler, Philofsky, Hepburn, & Correspondence concerning this article should be addressed to Peter Mundy, University of Miami, 5665 Ponce De Leon Blvd., Coral Gables, FL 33146. Electronic mail may be sent to pmundy@miami.edu. NIH Public Access Author ManuscriptChild Dev. Author manuscript; available in PMC 2009 March 11. Published in final edited form as:Child Dev. 2007 ; 78(3): 938-954. doi:10.1111/j.1467-8624.2007.01042.x. NIH-PA Author ManuscriptNIH-PA Author Manuscript NIH-PA Author Manuscript Rogers, 2005;Henderson, Yoder, Yale, & McDuffie, 2002;Laing et al., 2002; Lord et al., 2002;Mundy, Sigman, Kasari, & Yirmiya, 1988;Smith & Ulvund, 2003;Wetherby, Allen, Cleary, Kublin, & Goldstein, 2002). Accordingly, responding to joint attention (RJA) refers to the ability to follow the direction of gaze and gestures of others, initiating joint attention (IJA) refers to the ability to use direction of gaze and gestures to direct the attention of others to spontaneously share experiences, initiating behavior regulation/requests (IBR) refers to the ability to use gaze and gestures to...
Infant joint attention has been observed to be related to social-emotional outcomes in at-risk children. To address whether this relation is also evident in typically developing children, 52 children were tested at 12, 15, 24, and 30 months to examine associations between infant joint attention and social outcomes. Twelve-month initiating and responding to joint attention were related to 30-month social competence and externalizing behavior, even when accounting for 15-month temperament ratings, 24-month cognition and language, and demographic variables. These results suggest that, in addition to associations with language and cognition, infant joint attention reflects robust aspects of development that are related to individual differences in the emergence of social and behavioral competence in childhood.
Current research suggests that the extent to which child-caregiver dyads engage in interactions involving episodes of joint or coordinated attention can have a significant impact on early lexical acquisition. In this regard it has been recognized that individual differences in early developing child communication skills, such as capacity to follow gaze and early infant language, may contribute to these child-caregiver interactional patterns, as well as to subsequent language development. To address this expectation, 21 infant-parent dyads were recruited for participation in a longitudinal study. Early infant language, responding to joint attention skill, and cognitive development were assessed at 12 months of age. Child-caregiver joint attention episodes, as well as responding to joint attention skill and child language, were assessed at 18 months of age. Developmental outcome, using the MacArthur Communicative Development Inventories and the Bayley Scales of Infant Development-II, was assessed at 21 and 24 months of age. Consistent with previous findings, results indicated that individual differences in child-caregiver episodes of joint attention were related to language at 18 months. In addition, though, 12 month vocabulary and responding to joint attention skill were associated with some aspects of 18 month child-caregiver interaction, as well as subsequent language development. In general, 12 month child measures and 18 month child-caregiver interaction measures appeared to make unique contributions to language development in this sample. These results suggest the need to further consider the role of infant skills in the connections between child-caregiver joint attention episodes and language development.Language development occurs within a social context. Effective communicative interactions involve continuous modification to allow for efficient processing of information. Because infants and toddlers are limited in their capacity to effectively process information, adults tend to be the agents of modification, using simplified speech and clear acts of reference in combination to format communication and facilitate lan-
Little is known about variables that may contribute to individual differences in infant joint attention, or the coordination of visual attention with a social partner. Therefore, this study examined the contributions of caregiver behavior and temperament to infant joint attention development between 9 and 12 months. Data were collected from 57 infants using a caregiver–infant paradigm, an infant–tester paradigm, and a parent report of infant temperament. Nine‐month measures of caregiver scaffolding and infant initiating joint attention (IJA) with testers were significantly related to 12‐month infant IJA with testers. A temperament measure of positive emotional reactivity was related to 9‐month IJA, and a measure of negative emotional reactivity was related to 12‐month IJA. Temperament and caregiver scaffolding measures, however, were not associated with the development of infant responding to joint attention. These results further the understanding of the multiple processes that contribute to joint attention development in infancy, and support the hypothesis that initiating and responding measures tap different aspects of joint attention development.
The ability to coordinate expressive behaviors is crucial to the development of social and emotional communication. Coordination involves systematic sequencing of behaviors from two different modalities that have some temporal overlap. A bootstrapping procedure was used to determine whether preverbal 3- and 6-month-old infants sequence vocalizations, gazes at their mothers' faces, and facial expressions into pairs of coordinated patterns nonrandomly. Smiles and frowns were highly coordinated with vocalizations. Smiles were also coordinated with gazes at mothers' faces, which became stronger with age. Vocalizations were not coordinated with gazes at mothers' faces. These findings illustrate the manner in which infants temporally coordinate communicative actions and provide new evidence that facial expressions (particularly smiles) are central to early infant communications.
This study examined the concurrent and predictive relations between infant attention skills, joint attention, and emotion regulation. Infants' gaze following skills and duration of orienting were assessed at 6 months of age, and collaborative joint attention and emotion regulation skills were assessed at 24 months of age. The results indicated that infants' ability to follow direction of gaze at 6 months was significantly correlated with emotion regulation strategy use at 24 months of age, and that collaborative joint attention at 24 months was significantly correlated with emotion regulation strategy use at 24 months of age. The results of this study are consistent with previous research finding associations between collaborative joint attention and children's emotion regulation behaviour. These data also suggest that children's preexisting visual attention skills may contribute to their ability to regulate emotion.
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