Developmental Psychology最新文献

Investigating the structure and etiology of temperament is key to understanding how children interact with the world (Kagan, 1994). Although these topics have yielded an abundance of research, fewer studies have employed observational data during middle childhood, when unique environmental challenges could influence temperament development. To address this gap, Israeli twin children were observed at Age 6.5 (N = 1,083, 564 families; 50.6% females) and again at Age 8-9 (N = 768, 388 families; 52.0% females; 611 children from 322 families had data from both ages). Temperament was assessed globally by trained coders and, at Age 8-9, also by the experimenter who interacted with the child. We examined whether Rothbart et al.'s (2000) three-factor model, according to which temperament includes the domains negative affect, positive affect/surgency, and effortful control, emerges from the data. In addition, we considered a bifactor model, where a fourth global factor accounts for all behaviors' commonality. Across the two ages and rating methods, confirmatory factor analyses supported the bifactor model. The global factor's loadings suggested that it reflects children's expressiveness. Adding this factor changed the associations between the other factors and enabled differentiation between surgency and positive affect. This suggests that in observational settings that capture temperament impressions holistically, children's expressiveness affects other traits' behavioral displays. Twin models revealed genetic influences for most traits. Importantly, twin models revealed shared-environmental influences for negative affect and expressiveness, which modestly contributed to temperament consistency across ages. These findings shed light on temperament traits' interrelatedness and stress the importance of the shared environment to temperament development during middle childhood. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Self-regulation encompasses the ability to modulate behavior, cognition, and emotions. Parents can promote child self-regulation with responsive parenting (RP). RP shapes various components of self-regulation and is associated with numerous developmental outcomes. Here, we examine long-term effects of an early-life RP intervention designed for obesity prevention on later child self-regulation and temperament. Participants were from a randomized clinical trial comparing the RP intervention against a safety control (n = 279). RP intervention content in the domains of feeding, sleep, emotion regulation, and interactive play was delivered to primiparous mothers and infants at four home visits during the first year after birth, followed by clinical research center visits at ages 1 and 2 years and phone calls at 1.5 and 2.5 years. Child self-regulation and temperament were assessed with behavioral tasks and the Children's Behavior Questionnaire at child ages 3 and 6 years. A path model tested whether the RP intervention affected child self-regulation in comparison to the control group. At 6 years, children in the RP group had lower parent-reported negative affect (b = -0.34, SE = 0.15, p = .023) and better observed emotion regulation (b = 0.45, SE = 0.16, p = .007). Findings indicate that an RP intervention designed for early obesity prevention promoted emotional aspects of self-regulation in middle childhood, highlighting RP as a strategy for promoting healthy behavior across multiple domains. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Background sounds at home-namely those from television, communication devices, music, appliances, transportation, and construction-can support or impede infant language interactions and learning. Yet real-time connections at home between background sound and infant-caregiver language interactions remain unexamined. We quantified background sounds in the home environment, from 1- to 2-hr video recordings of infant-mother everyday activities (infants aged 8-26 months, 36 female) in two samples: European-American, English-speaking, middle-socioeconomic status (SES) families (N = 36) and Latine, Spanish-speaking, low-SES families (N = 40). From videos, we identified and coded five types of background sound: television/screens, communication devices, music, appliances, and transportation/construction. Exposure to background sounds varied enormously among homes and was stable across a week, with television/screens and music being the most dominant type of background sounds. Infants' vocalizations and mothers' speech to infants were reduced in the presence of background sound (although effect sizes were small), highlighting real-time processes that affect everyday language exchanges. Over the course of a day, infants in homes with high amounts of background sounds may hear and produce less language than infants in homes with less background sounds, highlighting potential cascading influences from environmental features to everyday interactions to language learning. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Prioritized attention to faces can be viewed as an early-developing marker of social engagement. This behavior is closely linked with early interactions, but there has been little research examining the longitudinal associations between social engagement and parent-child interaction. We examined the reciprocal relations between mother-child interaction and child engagement with faces from infancy to preschool age. Participants of this study were 738 mother-child dyads from the FinnBrain Birth Cohort. We used Emotional Availability Scales to examine mothers' emotional availability in interaction and eye tracking to examine attention dwell time for pictured faces and nonface patterns under distraction at 8, 30, and 60 months. Using a random intercept cross-lagged panel model, which differentiates between-dyad variance from within-dyad variance (deviations from the individual's latent average), we found that higher maternal emotional availability was associated with shorter dwell time for faces at the between-dyad level. At the within-dyad level, stability (smaller deviations from the individual's latent average) in a mother's emotional availability at 30 months was associated with stability in the child's face engagement in the subsequent assessment at 60 months. Similar associations were not found in analyses of dwell times for nonfaces. Together, our findings show an interconnection between mother-child interaction and the child's engagement with faces and raise the possibility that shifts in the quality of these interactions within specific developmental stage may lead to changes in how children engage with social cues. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Preschoolers are expected to transition from parallel play, where they engage in similar activities next to peers, to social play, where they engage in direct interactions with peers. We use longitudinal, multiplex social network analysis to examine the transition between observed parallel and social play over a school year in a 3-year-old classroom (N = 25, 45% girls, 48% White) and a 4-year-old classroom (N = 28, 42.86% girls, 60.71% White). In both classrooms, the existence of a parallel play relationship between two children predicted the formation of a social play relationship between the same two children over time but not vice versa. Findings provide support for a unidirectional, sequential transition from parallel to social play with the same peers. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

The present research examined cultural patterns of parental guidance for infants as they learned about a new physical rule with hands-on experience. Nine-month-olds participated in two sites: Taipei, Taiwan and Santa Cruz, California, United States (N = 96; 48 males, 48 females). They watched a single exemplar of covering events that demonstrated the to-be-learned rule, which was insufficient visual experience to learn the rule. As infants explored the objects while observing, their mothers provided culturally distinct guidance. The dyads in Taipei co-enacted directive guidance through parents' hand-holding infants, whereas the dyads in Santa Cruz focused on infants' free exploration. Despite different emphases of learning, both groups of infants benefited from hands-on experience and learned the rule with the single exemplar. The finding points to diverse pathways to support the early development of physical concepts for infants from different cultural backgrounds. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Although the parent-child relationship is widely regarded as a foundational context for youth development, the developmental origins of this relationship remain unknown. The present study addressed these gaps, leveraging longitudinal and genetically informed methods to illuminate the developmental origins of mother-child conflict as it unfolds from middle childhood into emerging adulthood. Participants consisted of 2,060 twins in 1,030 twin families (51% male, 49% female; 82% White, 10% Black, 1% Asian, 1% Indigenous, 6% multiracial) from the Michigan State University Twin Registry. Families were assessed up to five times. We fitted a series of latent growth curve models (univariate and parallel process) to data from mothers and children, after which we estimated genetic and environmental sources of variance within and covariance among the intercepts and slopes. Parallel process analyses indicated that maternal reports of conflict at baseline shaped their own and their children's perceptions of change in conflict over time but that children's reports of conflict at baseline predicted only their own rate of change in conflict. Subsequent biometric analyses indicated substantial environmental contributions to the intercepts in childhood, as well as prominent environmental origins to the overlap between maternal and child intercepts. By contrast, we observed robust genetically influenced child effects on maternal rate of change and on the association between the maternal and child slopes. Such findings collectively illuminate the dynamic and relational nature of mother-child conflict from childhood into emerging adulthood. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Punishment is a key mechanism to regulate selfish behaviors and maintain cooperation in a society. However, children often show mixed evaluations about third-party punishment. The current work asked how punishment severity might shape children's social judgments. In two studies, 5- to 10-year-old children heard about a punisher who took different numbers of items from a transgressor and evaluated the punisher's behavior and moral character. In Study 1 (n = 68), when the transgression was relatively mild (i.e., unfair sharing), children across ages evaluated taking no items from the unfair sharer ("no punishment") most positively, while evaluating taking three items ("harshest punishment") most negatively. In Study 2 (n = 68), when the transgression was more serious (i.e., stealing), younger children evaluated taking two items ("equality-establishing punishment") more positively than older children, while evaluating taking none most negatively. However, children became more likely to evaluate equality-establishing punishment negatively with age. Overall, the current results show that punishment severity is a key factor underlying children's third-party punishment judgments. The current research extends work on moral development by showing how children conceptualize the severity of punishment. (PsycInfo Database Record (c) 2024 APA, all rights reserved).