Infant behavior & development最新文献

{"title":"A new screener predicts Toddlers' language development from age 2-3: The QUILS:TOD.","authors":"Alexus G Ramirez, Raymond Patt, Amanda Delgado, Dani Levine, Sanford R Student, Jill de Villiers, Kathy Hirsh-Pasek, Aquiles Iglesias, Roberta Michnick Golinkoff","doi":"10.1016/j.infbeh.2024.102024","DOIUrl":"https://doi.org/10.1016/j.infbeh.2024.102024","url":null,"abstract":"<p><p>Language interventions may yield greater benefits for younger children than their older counterparts, making it critical to evaluate children's language skills as early as possible. Yet, assessing young children's language presents many challenges, such as limited attention spans, low expressive language, and hesitancy to speak with an unfamiliar examiner. To address these challenges, the Quick Interactive Language Screener for Toddlers (QUILS:TOD; for children 24- to 36-months of age) was developed as a quick, tablet-based language screener capable of assessing children's vocabulary, syntax, and word learning skills. We explored how children's performance on the QUILS:TOD and the MacArthur-Bates Communicative Development Inventory, another language screener, at two years of age relates to their performance one year later on the Quick Interactive Language Screener (QUILS), a validated and normed screener for children between three and six years of age. Results revealed that performance on the QUILS:TOD was predictive of QUILS performance, highlighting the utility of the QUILS:TOD for identifying which children at age two would continue to lag behind their peers at age three. Lastly, although all QUILS:TOD areas (vocabulary, syntax, and word learning) were predictive of QUILS performance, the most robust predictor of children's performance on the same receptive language dimensions at 3 years was their syntax, emphasizing the necessity of evaluating language beyond vocabulary.</p>","PeriodicalId":94039,"journal":{"name":"Infant behavior & development","volume":"78 ","pages":"102024"},"PeriodicalIF":0.0,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142934258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effect of telephone-assisted breastfeeding monitoring on physiological jaundice, exclusive breastfeeding in the first six months, development of colic, and breastfeeding self-efficacy: A randomized controlled trial.","authors":"Zeynep Aykan, Gülçin Özalp Gerçeker","doi":"10.1016/j.infbeh.2024.102023","DOIUrl":"https://doi.org/10.1016/j.infbeh.2024.102023","url":null,"abstract":"<p><p>This randomized controlled study was conducted to evaluate the effects of telephone-assisted breastfeeding monitoring on physiological jaundice, exclusive breastfeeding in the first six months, colic, breastfeeding success, and breastfeeding self-efficacy. Breastfeeding and infant care training were given to pregnant women by video calls (N = 54). Video call counseling was provided to the mothers in the intervention group (n = 27) every day for the first week after discharge and weekly until the 24th week, and the control group (n = 27) was only telephone called in follow-up weeks. The primary variables were exclusive breastfeeding and breastfeeding success, while secondary variables were physiological jaundice, colic, and breastfeeding self-efficacy. The LATCH Breastfeeding Assessment Tool, the Breastfeeding Self-Efficacy Scale, and the Infantile Colic Scale were used. The mean scores of the intervention and control groups were compared using the Mann-Whitney U test and multivariate analysis of variance in repeated measurements. The telephone-assisted breastfeeding monitoring increased exclusive breastfeeding in the first six months. Physiological jaundice was experienced less in infants in the intervention group. There was no difference in terms of infantile colic, breastfeeding success, and breastfeeding self-efficacy between group and group*time interaction, a difference was found in terms of time. The telephone-assisted breastfeeding monitoring can be used to increase exclusive breastfeeding and prevent physiological jaundice (ClinicalTrials.gov Identifier: NCTXXX).</p>","PeriodicalId":94039,"journal":{"name":"Infant behavior & development","volume":"78 ","pages":"102023"},"PeriodicalIF":0.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142916746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Soothing touch matters: Patterns of everyday mother-infant physical contact and their real-time physiological implications.","authors":"Anna Madden-Rusnak, Megan Micheletti, Loryn Bailey, Kaya de Barbaro","doi":"10.1016/j.infbeh.2024.102021","DOIUrl":"https://doi.org/10.1016/j.infbeh.2024.102021","url":null,"abstract":"<p><p>Physical contact between infants and caregivers is crucial for attachment development. Previous research shows that skin-to-skin contact after birth and frequent baby wearing in the first year predict secure attachment at 12-months. This relationship is thought to be mediated by the activation of infants' parasympathetic nervous system through caregiver touch. However, little is known about everyday touch behaviors and their impact on infants' real-time parasympathetic activity. Laboratory observations may not accurately represent real-world interactions, highlighting the need for ecologically valid studies. To address this, we examined everyday dyadic touch behaviors and their real-time effects on infant parasympathetic activation. We video recorded N = 28 infants (1-10 months old) and their mothers at home for behavioral analyses. All infants wore wireless ECG sensors (1024 Hz) during video recordings, and n = 21 infants had high-quality ECG data that could be used for Respiratory Sinus Arrhythmia analyses. We used a dynamic measure of RSA (updated every 200 ms) as an index for real-time parasympathetic activation. We found that dyads touch interactions at home involve short, though highly variable bouts of physical contact, that change with infant age. Younger infants spent more time remaining stationary during contact and receiving more soothing touch compared to older infants. Only soothing touch - i.e., rocking, patting, bouncing, or stroking- led to immediate, significant increases in parasympathetic activity (RSA), and this effect was driven by younger infants. This study provides new insights into the ecological patterns of touch in early development and the biobehavioral mechanisms promoting secure attachment.</p>","PeriodicalId":94039,"journal":{"name":"Infant behavior & development","volume":"78 ","pages":"102021"},"PeriodicalIF":0.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142866819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Early developmental changes in infants' vocal responses in interactions with caregivers.","authors":"Yulim Jeong, Seunghee Ha","doi":"10.1016/j.infbeh.2024.102022","DOIUrl":"https://doi.org/10.1016/j.infbeh.2024.102022","url":null,"abstract":"<p><strong>Objectives: </strong>The study aimed to explore the developmental trajectory of infants' vocal responses and the temporal characteristics of vocal interactions between infants and caregivers in natural home environments, focusing specifically on Korean infants aged 3, 6, 9, and 12 months.</p><p><strong>Methods: </strong>One-day home recordings were collected using a LENA recorder at ages 3, 6, 9, and 12 months for each infant. In-depth analyses of the LENA recordings were conducted on 20 5-minute segments that showed the highest conversational turn counts, as determined by the LENA automated analysis. The temporal characteristics of infant vocalizations during interactions with caregivers were examined through infant vocal response, vocal response latency, and overlapping vocalizations.</p><p><strong>Results: </strong>The results indicated that the proportion of infant vocal responses following adult speech differed across age groups. Specifically, the highest proportion was observed at 3 months, with a noticeable decrease at 6 and 9 months, and a slight increase at 12 months. Infant vocal response latency increased with age, indicating longer response delays as infants got older. The proportion of overlapping vocalizations was consistent among 3, 6, and 9-month-olds but decreased significantly at 12 months.</p><p><strong>Conclusion: </strong>These findings highlight distinct changes in infant vocal interactions during the first year of life. Although the analysis was cross-sectional, the observed patterns suggest developmental changes in the timing and structure of vocal response as infants age. This study indicates that infants adapt their vocal interactions in response to caregivers' speech, which may reflect a gradual learning of conversational coordination.</p>","PeriodicalId":94039,"journal":{"name":"Infant behavior & development","volume":"78 ","pages":"102022"},"PeriodicalIF":0.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142866795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Longitudinal changes in consonant production in infant-directed speech and infants' early speech production from 6 to 12 months.","authors":"Audun Rosslund, Nina Varjola, Julien Mayor, Natalia Kartushina","doi":"10.1016/j.infbeh.2024.102018","DOIUrl":"https://doi.org/10.1016/j.infbeh.2024.102018","url":null,"abstract":"<p><p>Previous research suggests that acoustic features of infant-directed speech (IDS) might be beneficial for infants' language development. However, consonants have gained less attention than prosodic and vowel-based features. In the current study, we examined voice onset time (VOT) - a distinguishing cue for stop consonant contrasts - in IDS and adult-directed speech (ADS), and its relation to infants' speech production. We used a longitudinal sample of 48 Norwegian parent-infant dyads. Parents' IDS and ADS were recorded in-lab at three timepoints (infants' age: 6, 9, 12 months), and the VOTs of the stop consonants /b-p/, /d-t/, and /g-k/ were measured. In addition, at each timepoint, parents reported their infants' production of the same consonants, as well as their babbling. Hypotheses were preregistered, and we used full-null model comparisons to minimise type I-errors in the analyses. Our results demonstrate that, while controlling for speaking rate, in IDS, parents' VOTs were longer in voiceless stops, but shorter in voiced stops, resulting in overall less distinct consonant contrasts compared to ADS. Further, VOTs in IDS approached ADS values with infants' age. However, we found no relationship between parents' VOTs and infants' consonant production or babbling. Consonants, like vowels, appear to be less distinct in IDS than ADS, thus reinforcing the interpretation that IDS may serve an attentional and/or affective aim, rather than a didactic purpose.</p>","PeriodicalId":94039,"journal":{"name":"Infant behavior & development","volume":"78 ","pages":"102018"},"PeriodicalIF":0.0,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142857244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Toward a global understanding of neonatal behaviour: adaptation and validation of the Neonatal Behavioural Assessment Scale (NBAS) in the UK and rural Gambia.","authors":"Laura Katus, Maria Rozhko, Christine Torrance, Tijan Fadera, Fabakary Njai, Marta Perapock Amadó, Bosiljka Milosavljevic, Samantha McCann, Mustapha Minteh, Malang Jammeh, Jane Barlow, Clare E Elwell, Sophie E Moore, Sarah Lloyd-Fox","doi":"10.1016/j.infbeh.2024.102017","DOIUrl":"https://doi.org/10.1016/j.infbeh.2024.102017","url":null,"abstract":"<p><p>There is a need of expanding research on neonatal behaviour to encompass diverse global populations. However, few measures appropriate for use from birth in diverse cultural contexts exist. We present data from rural Gambia and the UK using the Neonatal Behavioural Assessment Scale (NBAS). In Phase 1, the scale was piloted for use in The Gambia, highlighting great utility for use in this setting. Adaptations included 1) additional explanation of some items to caregivers and 2) omission of items where the home environment necessitated to do so. In Phase 2, the NBAS was administered in both the UK and The Gambia. Item level comparisons across the sites showed fewer state changes in Gambian infants and a greater degree of examiner facilitation throughout the session. Factor analysis within the larger Gambian cohort indicated best model fits where first-order factors mapping onto each NBAS subscale were accompanied by a second-order 'Self-Organising System'-factor, mirroring prior factor analytic studies on the scale. Further, the habituation subscale had to be omitted from analyses due to large amounts missing data, highlighting potential differences across subscales when implementing the NBAS across diverse settings. We found associations between our NBAS factor scores and NBAS supplementary items. Examining known risk factors for early neonatal development, we found associations of the Social Interactive and Self-Organising System factor with pregnancy anxiety and gestational age at birth and birthweight, but not maternal anaemia. Our findings inform future studies seeking to understand the interplay between cultural contexts, perinatal factors, and early neurobehavioural development.</p>","PeriodicalId":94039,"journal":{"name":"Infant behavior & development","volume":"78 ","pages":"102017"},"PeriodicalIF":0.0,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142787002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Differential roles of problematic media use by mothers and toddlers in the relation between parenting stress and toddlers' socioemotional development.","authors":"Koeun Choi, Yea-Ji Hong","doi":"10.1016/j.infbeh.2024.102009","DOIUrl":"https://doi.org/10.1016/j.infbeh.2024.102009","url":null,"abstract":"<p><p>The increasing prevalence of digital media devices in families with young children has raised concerns over problematic media use. However, the link between toddlers' problematic media use, their socioemotional development, and the influence of parental factors remains unclear. The current study examined the roles of problematic media use by both mothers and toddlers in the association between maternal parenting stress and toddlers' socioemotional development. Participants comprised 215 mothers and 73 lead child care classroom teachers of toddlers aged 24-36 months enrolled in child care centers in South Korea. Mothers reported parenting stress and problematic media use by themselves and their toddlers, and child care teachers reported toddlers' socioemotional development. The results from structural equation modeling analysis revealed that maternal parenting stress was related to toddlers' socioemotional development both directly and indirectly through toddlers' problematic media use, both alone and in conjunction with mothers' problematic media use. Although maternal parenting stress was related to mothers' problematic media use, mothers' problematic media use was not directly related to toddlers' socioemotional development. These findings underscore the importance of toddlers' problematic media use in their socioemotional development and highlight the need for comprehensive approaches that address family dynamics, such as maternal parenting stress and problematic media use.</p>","PeriodicalId":94039,"journal":{"name":"Infant behavior & development","volume":"78 ","pages":"102009"},"PeriodicalIF":0.0,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142782241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Early influence of language experience in non-native speech perception: Discrimination of three-way Thai stop contrasts by Korean and Japanese infants.","authors":"Minji Nam, Naoto Yamane, Hyun Kyung Hwang, Chutamanee Onsuwan, Youngon Choi, Reiko Mazuka","doi":"10.1016/j.infbeh.2024.102005","DOIUrl":"https://doi.org/10.1016/j.infbeh.2024.102005","url":null,"abstract":"<p><p>Young infants' remarkable ability to discriminate non-native phoneme contrasts played a critical role in shaping the tenets of the perceptual narrowing hypothesis: early on, infants are sensitive to most phoneme categories, including those not used in their native language, but lose this sensitivity as they attune to their language. However, supporting evidence was derived from limited geographical regions and languages, particularly on early sensitivity, requiring further studies to specify the extent of early sensitivity and reassess the dominant developmental pattern. This study aimed to fill this gap by examining discrimination patterns for three-way Thai stop contrasts by two other Asian language learners (Korean and Japanese) at age 4-6 months. The three stop categories in Thai are distinct along the voice onset time (VOT) dimension, encompassing both negative and positive values. Thai pre-voiced and voiceless (i.e., short lag) stops are similar to stop categories used in languages such as French, Dutch, and Spanish. Thai voiceless and voiceless aspirated (i.e., long lag) stops are similar to those in English, Chinese, and German. Therefore, Thai stop categories provide an ideal test continuum for confirming early universal sensitivities to two supposedly language-general VOT boundaries (-30 ms, +30 ms). We presented two Thai phoneme pairs (pre-voiced vs. voiceless, voiceless vs. voiceless aspirated) to Korean and Japanese infants aged 4-6 months and observed their discrimination patterns using a visual habituation paradigm. The results showed divergent discrimination between the two language learners. Korean infants showed sensitivity to the pre-voiced-voiceless pair, whereas Japanese infants did not. By contrast, only Japanese infants showed some sensitivity to the voiceless-voiceless aspirated pair with some directionality effect, whereas Korean infants did not. These results demonstrate systematic cross-linguistic differences reflecting input influence in early perceptual sensitivity and suggest the ambient language environment may influence consonant perception much earlier than has been considered by the perceptual narrowing theory, calling for further refinement of the extent of initial perceptual state in the theory.</p>","PeriodicalId":94039,"journal":{"name":"Infant behavior & development","volume":"78 ","pages":"102005"},"PeriodicalIF":0.0,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142775990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}