Infancy最新文献

{"title":"Pathways to Agency: Cross-Cultural Evidence From Indigenous Wichi and Eurodescendant Caregiver-Infant Interactions","authors":"Migdalia I. Padilla Colón,&nbsp;Andrea S. Taverna,&nbsp;Sandra Waxman","doi":"10.1111/infa.70104","DOIUrl":"10.1111/infa.70104","url":null,"abstract":"<div>\u0000 \u0000 <p>This study reveals a new social interactional framework—joint agency—that permits us to better understand the early development of agency in infants being raised in culturally distinct socialization contexts. Sixteen caregiver–infant pairs (1; 0–2; 6 months) were observed in naturalistic settings within two Argentine populations—Indigenous Wichi and urban Eurodescendant. Guided in part by a Wichi category, <i>husek ihi</i>, the study adopts a dual analytic approach that balances cross-cultural comparability with sensitivity to interactional ecologies. The analysis proceeded in three sequential stages: (1) the development of an observational coding system to identify joint agency episodes (JAEs), (2) the characterization of these JAEs along social, semiotic, and material dimensions, and (3) the examination of the semiotic modalities through which joint agency unfolds in interaction. The evidence revealed that all infants engaged in JAEs, but that their organization differed as a function of cultural community. Among the Wichi, JAEs typically involved multiparty participation, non-verbally mediated, and engaged embodied modalities centering on available materials. In contrast, in the Eurodescendant community, JAEs were typically dyadic, verbally mediated, and centered on domestic toys. These findings offer a multimodal, culturally situated account of early agency, challenging models that treat agency primarily as the attribution of internal mental states.</p>\u0000 </div>","PeriodicalId":47895,"journal":{"name":"Infancy","volume":"31 4","pages":""},"PeriodicalIF":2.4,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148550827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Brain Activity of Young Children in Bangladesh Is Associated With Biopsychosocial Conditions at the Individual-, Family-, and Household-Level","authors":"Leila M. Larson,&nbsp;Daniel Feuerriegel,&nbsp;Gitanjali Lall,&nbsp;Mohammed Imrul Hasan,&nbsp;Sabine Braat,&nbsp;Jerry Jin,&nbsp;Beverley-Ann Biggs,&nbsp;Stefan Bode,&nbsp;Sant-Rayn Pasricha,&nbsp;Katherine A. Johnson,&nbsp;Jena D. Hamadani","doi":"10.1111/infa.70108","DOIUrl":"https://doi.org/10.1111/infa.70108","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <p>Adversities in early life compromise children's nurturing care and impact their development. This study explored the biopsychosocial conditions associated with electroencephalography (EEG)-based brain activity in children living in rural Bangladesh, a setting with high rates of malnutrition and suboptimal psychosocial stimulation. In a substudy of the Benefits and Risks of Iron Supplementation in Children (BRISC) study in Bangladesh, we recorded resting EEG brain activity in a random subsample of 440 children at 11 months and 594 children at 20 months of age. EEG band power measures were derived for delta, theta, alpha, and beta power bands. Validated tools were used to assess maternal depression, household food insecurity, and psychosocial stimulation. Children's anthropometry, venous hemoglobin and ferritin concentrations, and inflammation were also measured. Linear regression analyses were conducted to identify the concurrent and lagged biopsychosocial conditions associated with EEG-based brain activity. Growth, nutritional status, psychosocial stimulation, and household food security were associated with concurrent and lagged brain activity. The direction of association differed by EEG frequency band, but the majority of biopsychosocial conditions were positively associated with activity in the higher frequency bands and negatively with lower frequency bands. Our findings indicate that brain activity in children can be influenced by a range of biopsychosocial adversities. Children's nutrition, quality and quantity of psychosocial stimulation, and food security influence their current and later brain activity in this resource-limited setting in South Asia.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Trial Registration</h3>\u0000 \u0000 <p>ACTRN12617000660381</p>\u0000 </section>\u0000 </div>","PeriodicalId":47895,"journal":{"name":"Infancy","volume":"31 4","pages":""},"PeriodicalIF":2.4,"publicationDate":"2026-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/infa.70108","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148467289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effect of Prenatal Substance Use and Maternal Parenting on Infant Reactivity and Regulation","authors":"Maria Balaceanu,&nbsp;Stephanie M. Engel,&nbsp;Amanda M. Ramos","doi":"10.1111/infa.70107","DOIUrl":"https://doi.org/10.1111/infa.70107","url":null,"abstract":"<div>\u0000 \u0000 <p>Early temperament, particularly regulation and reactivity, is critical to neurodevelopment and can be shaped by early biological and environmental factors. Prenatal substance exposure is one such influencing factor, often associated with lower regulation and heightened reactivity in infants. However, positive parenting may help mitigate these effects. This study examined how prenatal exposure to alcohol, tobacco, and marijuana influences infant temperament at 24 months, and whether maternal warmth at 12- and 24-months moderates or mediates these relationships. Participants were 404 mother-child dyads from a prospective, ethnically diverse urban cohort. Results showed prenatal alcohol and tobacco exposure was directly associated with poorer child regulation and reactivity, while marijuana was not independently linked to these outcomes. Maternal warmth at 12 and 24 months moderated some of the negative effects of prenatal tobacco and marijuana exposure, but not alcohol. These moderating effects varied by child outcome, timing, and frequency of substance use. No evidence was found for maternal warmth mediating any of the associations between prenatal substance use and child outcomes. Findings highlight the differential impact of substance type, timing, and frequency on child outcomes and underscore the importance of early parenting support as a resilience factor.</p>\u0000 </div>","PeriodicalId":47895,"journal":{"name":"Infancy","volume":"31 4","pages":""},"PeriodicalIF":2.4,"publicationDate":"2026-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148467188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Role of Attention in Dyadic Social Interaction With Infants and Their Caregivers","authors":"Olivia Boorom,&nbsp;Brenda Salley","doi":"10.1111/infa.70110","DOIUrl":"https://doi.org/10.1111/infa.70110","url":null,"abstract":"<p>This study examined the relationship among early attention skills in infants and measures of dyadic interaction during caregiver–infant play, including interpersonal synchrony and turn-taking behavior. Thirty-five caregivers and their one-year-old infants (mean age = 15.34 months) completed a 5-minute free play session and sessions were coded for communication behaviors (eye contact, vocalizations, and gestures), coordinated attention, and infant visual attention states (focused, unfocused, and casual attention). Coordinated attention with a caregiver was not related to caregiver–infant synchrony and turn-taking. Mean duration of casual attention (i.e., passive, exploratory attention toward an object or person), but not focused attention, was negatively associated with time spent in bouts of turn-taking. Results suggest that shorter bouts of casual attention during play may support longer periods of turn-taking with caregivers, an important social communication skill for infants as intentional communication continues to develop in the second year of life.</p>","PeriodicalId":47895,"journal":{"name":"Infancy","volume":"31 4","pages":""},"PeriodicalIF":2.4,"publicationDate":"2026-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/infa.70110","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148467185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Understanding Object Exploration: The Role of Temperament Early in Life","authors":"Kaylin E. Hill,&nbsp;Lauren Malachowski,&nbsp;Amy Work Needham,&nbsp;Kathryn L. Humphreys","doi":"10.1111/infa.70109","DOIUrl":"10.1111/infa.70109","url":null,"abstract":"<p>Object exploration presents infants and young children with valuable opportunities for learning across domains. What factors motivate and constrain exploratory behavior? In the present studies, we highlight the infant's contributions to object exploration by testing links between parent-reported temperament and observed exploratory behaviors. In two samples, Study 1: 24-month-olds (<i>N</i> = 35, 51% female; 88% White; 95% non-Hispanic) and Study 2: 6-month-olds (<i>N</i> = 96, 50% female; 82% White; 89% non-Hispanic), we assessed object exploration via coding of child behavior during two different lab-based free play tasks. Across both samples, infants rated higher in temperamental surgency engaged in a more rapid pace of object exploration (i.e., moving quickly between objects). Additionally, cluster analyses indicated that infants characterized by high activity level, high positive affect, and high negative affect spent more time engaged in fine motor exploration (i.e., fingering and transferring) compared to infants characterized by average activity level, high positive affect, and low negative affect. These findings indicate a link between temperament and exploratory behavior in infancy and toddlerhood.</p>","PeriodicalId":47895,"journal":{"name":"Infancy","volume":"31 4","pages":""},"PeriodicalIF":2.4,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/infa.70109","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148457293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reciprocal Parent-Toddler Communication in the Context of Toddler Distress: Evidence From Naturalistic Recordings","authors":"Margaret A. Fields-Olivieri,&nbsp;Kristin J. Jennings,&nbsp;Caitlin G. Stone,&nbsp;Crystal E. Thinzar","doi":"10.1111/infa.70105","DOIUrl":"10.1111/infa.70105","url":null,"abstract":"<p>Although negative emotion expression is common in the toddler period, the field of language development lacks understanding of how negative emotions are integrated within the parent-toddler communicative routines that support language learning. In a sample of 25 one-year-olds (<i>M</i>_age = 16.60 months; 92% White, 8% Biracial), drawing from naturalistic samples of parent-toddler communication characterized by high toddler distress, we identified three toddler vocalization types: (1) non-distressed verbal/preverbal vocalizations (VERB), (2) non-verbal distress vocalizations (CRY), and (3) distressed verbal/preverbal vocalizations (VERBCRY). We found that, on average, 32% of toddlers' distress vocalizations co-occurred with verbal/preverbal expression (i.e., VERBCRY). Older toddlers with more language skills more often integrated distress and verbal/preverbal expression. Parents were most responsive to toddlers' non-distressed verbal/preverbal vocalizations (VERB), and, unexpectedly, were least responsive to toddlers' distressed verbal/preverbal vocalizations (VERBCRY). Moreover, parents' responses to toddlers' distress cues often helped them shift towards more verbal or less distressed communication (i.e., from CRY to VERBCRY or from VERBCRY to VERB). The findings highlight the important role that negative emotions play in everyday parent-toddler communication and the need to understand language learning as a process that is embedded within the emotional fabric of everyday life.</p>","PeriodicalId":47895,"journal":{"name":"Infancy","volume":"31 4","pages":""},"PeriodicalIF":2.4,"publicationDate":"2026-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/infa.70105","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148438420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Acoustic Features, Parental Perception and Developmental Correlations of Crying in Preterm Infants: A Systematic Review and Meta-Analysis","authors":"Giselle V. Mannarino,&nbsp;Suhail R. Ali-Briceño,&nbsp;Álvaro Bejarano-Martín,&nbsp;María Magán-Maganto,&nbsp;Ricardo Canal-Bedia","doi":"10.1111/infa.70106","DOIUrl":"10.1111/infa.70106","url":null,"abstract":"<p>Infants born preterm present a higher likelihood of differences in social and emotional communication. Crying, as the earliest form of human communication, may provide valuable information about early neurodevelopment. Understanding its acoustic characteristics and how caregivers perceive it can help identify early patterns linked to communication and emotional regulation. Although several studies have explored crying in different clinical and developmental contexts, research focusing specifically on preterm infants (PT) remains fragmented. This study aimed to review and synthesize studies on PT crying and infant colic, including acoustic features, perception by adults, and correlations with developmental outcomes. A systematic review and meta-analysis were conducted including observational studies assessing crying in children under 36 months. Searches were performed in Web of Science, SCOPUS, and EBSCO. Study quality and bias were evaluated using STROBE and a modified Newcastle–Ottawa scale. Fifty-three studies met inclusion criteria. Fundamental frequency (f₀) was the only acoustic feature reported with sufficient consistency for quantitative synthesis. The meta-analysis showed no significant pooled PT–FT difference in f₀ (Hedges' g = 0.32; 95% CI: −0.27–0.91), with substantial heterogeneity. Some studies suggested increased prevalence of excessive crying and infant colic in PT infants and differences in adults' perceptions of PT cries, but findings were inconsistent. Developmental associations were also mixed, with some studies linking excessive crying to poorer cognitive, behavioral, or parental-stress outcomes. The evidence base was too limited and methodologically heterogeneous to support a single generalizable preterm-full-term difference in cry acoustic features. Because quantitative synthesis was feasible only for f₀, the review prioritized narrative synthesis across acoustic, perceptual, infant colic, and developmental-correlation outcomes. We provide preliminary reporting considerations intended to improve transparency and comparability in future studies of crying.</p>","PeriodicalId":47895,"journal":{"name":"Infancy","volume":"31 4","pages":""},"PeriodicalIF":2.4,"publicationDate":"2026-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/infa.70106","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148425429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Early and Chronic Postnatal Depression, Maternal Sensitivity to Non-Distress and Infant Neurodevelopmental Outcomes in an Indian Birth Cohort","authors":"Matthew Bluett-Duncan,&nbsp;Thomas Kishore,&nbsp;Veena Satyanarayana,&nbsp;Supraja TA,&nbsp;Laura Bozicevic,&nbsp;Chaithra Holla,&nbsp;Nicky Wright,&nbsp;Ellie Preece,&nbsp;Andrew Pickles,&nbsp;Prabha Chandra,&nbsp;Helen Sharp","doi":"10.1111/infa.70103","DOIUrl":"https://doi.org/10.1111/infa.70103","url":null,"abstract":"<p>This study examined whether findings from High-Income Countries (HIC) suggesting that (1) maternal postnatal depression (PND) is associated with poorer infant neurodevelopmental outcomes, (2) maternal sensitivity to non-distress (SND) is associated with improved outcomes, (3) SND may buffer the effect of PND, are present in India. Participants were from the Bangalore Child Health and Development Study (BCHADS), a prospective longitudinal cohort study starting in pregnancy (<i>n</i> = 337). Mothers self-reported depression symptoms on the Edinburgh Postnatal Depression Scale; variables reflecting early PND (8 weeks) and chronic PND (factor score created from 8 weeks, 6, 12, 24 months) were examined. SND was coded from a semi-structured play observation at age 6 or 12 months. Infant neurodevelopment was assessed at 24 months using the Bayley Scales of Infant Development. Early PND, chronic PND or maternal SND were not associated with infant cognitive or language development in the whole sample, but in boys increased maternal SND was associated with improved language development. SND did not moderate associations between maternal PND and outcomes. A number of factors, such as parity, birthweight by gestational age, and the presence of an alternate caregiver, demonstrated small but significant sex-specific associations with neurodevelopment in exploratory analyses. Maternal SND was associated with improved language outcomes after accounting for multiple risks, but only in boys. Future work should examine whether broader aspects of the nurturing environment contribute to neurodevelopment in a sex-specific manner.</p>","PeriodicalId":47895,"journal":{"name":"Infancy","volume":"31 4","pages":""},"PeriodicalIF":2.4,"publicationDate":"2026-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/infa.70103","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148322335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Infants Anticipate the Timing of Sounds From Dynamic Collision Events","authors":"Andrew Marin,&nbsp;Zara Fearns,&nbsp;Melanie Dratva,&nbsp;Lindsey J. Powell,&nbsp;Viola S. Störmer,&nbsp;Leslie J. Carver","doi":"10.1111/infa.70101","DOIUrl":"10.1111/infa.70101","url":null,"abstract":"<div>\u0000 \u0000 <p>In everyday perception, expected sounds are predicted by the movement of dynamic objects. Here, we asked if four-to five-month-old infants' understanding of physical events allows them to use motion to predict the timing of collision sounds. We investigated whether infant looking time differed when viewing collision events that resulted in amodal visual or multimodal audio-visual changes. In a moderated, online study, we showed two groups of infants a moving 2-D ball and collision events. In one group, we presented infants with alternating trials from two conditions that varied in the temporal congruence of the ball's motion and collision sounds: one in which sound occurred simultaneously upon collision between the ball and a barrier (audio-visual; AV synchronous), and one where sound came slightly before collision (AV asynchronous). Another group of infants viewed the ball changing color upon collision (visual color change; VCC synchronous), and one in which the color changed slightly before collision (VCC asynchronous). Offline behavioral coding of recorded looking time demonstrated that infants looked longer toward AV asynchronous trials than to AV synchronous ones. This pattern was not seen in the group of infants who viewed color changing collisions. We also observed that infants looked longer toward AV asynchronous trials compared to VCC asynchronous trials. These data demonstrate that young infants have expectations regarding the temporal alignment of collisions and sound, which may provide a foundation for physical inference and learning in natural sensory environments.</p>\u0000 </div>","PeriodicalId":47895,"journal":{"name":"Infancy","volume":"31 3","pages":""},"PeriodicalIF":2.4,"publicationDate":"2026-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148309898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dips in Development: Learning to Walk Temporarily Disrupts Infant Vocalization","authors":"Samantha N. Plate,&nbsp;Joshua L. Schneider,&nbsp;Jana M. Iverson","doi":"10.1111/infa.70099","DOIUrl":"https://doi.org/10.1111/infa.70099","url":null,"abstract":"<div>\u0000 \u0000 <p>Infant development is a dynamic, cross-domain process. Infants acquire new skills, integrate them with well-established behaviors, and do so simultaneously. New skills can bolster development of existing behaviors or create moments of temporary instability for the developing system. How do multiple skills interact? To address this question, we mapped longitudinal change in infant vocalization against the backdrop of infants' evolving locomotor skills. We followed 22 infants across the 6 months surrounding the emergence of walking and examined changes in the production of vocalizations and in their coordination with locomotion during everyday activity at home. As a group, infants displayed positive linear growth in vocalization frequency, duration, and coordination with locomotion. However, a majority of individual infants showed evidence of a temporary decline in growth—a “dip”—in all three measures during the 2 months around walk onset. Moreover, although infants coordinated vocalizations with crawling (a well-established skill) across most of the observation period, above-chance coordination of vocalization with walking (a new skill) only emerged after 1 month of walking experience. Thus, learning to walk creates opportunities for infant communication, but is also a moment in development when progress slows, albeit temporarily.</p>\u0000 </div>","PeriodicalId":47895,"journal":{"name":"Infancy","volume":"31 3","pages":""},"PeriodicalIF":2.4,"publicationDate":"2026-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148282621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}