Jealousy protest to a social rival compared to a nonsocial rival in Chilean infants 10 –20 months' old
This study replicated research on jealousy protests in a novel language and sociocultural context with 10–20 months old infants. We compared protests of 45 children when their mothers attended to each of the rivals and controlled for attachment dimensions. As hypothesized, i nfants had a stronger jealousy protest to the social rival, and their response was associated with attachment avoidance. We concluded that our results contribute to evidence on jealousy protest as an evolutionary rooted phenomenon that favors the mother's attention in a social rivalry scenario over nonsocial stimuli. Attachment avoidance may be a pr...
Source: Infancy - May 25, 2022 Category: Child Development Authors: Ana Maria Fernandez,
Yvone Acevedo,
Carmen Gloria Baeza,
Michele Dufey,
Isabel Puga Tags: BRIEF REPORT Source Type: research
Why the parent's gaze is so powerful in organizing the infant's gaze: The relationship between parental referential cues and infant object looking
AbstractParental scaffolding such as looking at and showing objects has long been considered to be helpful for early attention and language development. However, relatively little is known about how parental social multimodal cues work alone or together in guiding an infant's attention toward the referent items. The present study aims to document the dynamics of social referential input during an interactive play session and specify the different types of social cues in directing infant attention. Forty-three parent-infant dyads (infants aged from 5.0 to 18.0 months) in the U.S. completed a short play session recorded by...
Source: Infancy - May 17, 2022 Category: Child Development Authors: Lichao Sun,
Hanako Yoshida Tags: RESEARCH ARTICLE Source Type: research
Qualitative and quantitative aspects of child ‐directed parental talk and the relation to 2‐year‐old's developing vocabulary
In this study, we focus on associations between these variables and 2-year-old's (N = 87) vocabulary. Child vocabulary and digital media use were measured through online questionnaires. We took a multimethod approach to measure parents' child-directed talk. First, we used a home sound environment recording (Language ENvironment Analysis technology) to estimate parents' talk (CTT ). Second, parents narrated a picture book, the Frog story, to assess the parent's MST. There was a negative association between how much children watched video content and their vocabulary. However, parents reported that they frequently co-viewe...
Source: Infancy - May 9, 2022 Category: Child Development Authors: Annette Sundqvist,
Felix ‐Sebastian Koch,
Mimmi Söderberg,
Rachel Barr,
Mikael Heimann Tags: RESEARCH ARTICLE Source Type: research
Maternal anxiety symptoms associated with increased behavioral synchrony in the early postnatal period
AbstractThe presence of perinatal mood and anxiety disorders has typically been associated with decreases in the quality of mother –infant interactions. However, maternal anxiety symptoms during the postpartum period have been less studied than other mental health disorders like depression. In the current study, we examined associations among symptoms of maternal anxiety, maternal perceived stress, and mother–infant behavio ral synchrony in the early postnatal period. Eighty-one mother–infant dyads participated in this study when the infants were 3 months old. Surveys were given to obtain demographic information and...
Source: Infancy - May 8, 2022 Category: Child Development Authors: Alejandra Lemus,
Sarah C. Vogel,
Ashley N. Greaves,
Natalie H. Brito Tags: RESEARCH ARTICLE Source Type: research
Visual statistical learning in deaf and hearing infants and toddlers
AbstractCongenital hearing loss offers a unique opportunity to examine the role of sound in cognitive, social, and linguistic development. Children with hearing loss demonstrate atypical performance across a range of general cognitive skills. For instance, research has shown that deaf school-age children underperform on visual statistical learning (VSL) tasks. However, the evidence for these deficits has been challenged, with mixed findings emerging in recent years. Here, we used a novel approach to examine VSL in the action domain early in development. We compared learning between deaf and hearing infants, prior to cochle...
Source: Infancy - May 7, 2022 Category: Child Development Authors: Claire Monroy,
Chen Yu,
Derek Houston Tags: RESEARCH ARTICLE Source Type: research
Ten easy steps to conducting transparent, reproducible meta ‐analyses for infant researchers
AbstractMeta-analyses provide researchers with an overview of the body of evidence in a topic, with quantified estimates of effect sizes and the role of moderators, and weighting studies according to their precision. We provide a guide for conducting a transparent and reproducible meta-analysis in the field of developmental psychology within the framework of the MetaLab platform, in 10 steps: (1) Choose a topic for your meta-analysis, (2) Formulate your research question and specify inclusion criteria, (3) Preregister and document all stages of your meta-analysis, (4) Conduct the literature search, (5) Collect and screen r...
Source: Infancy - April 28, 2022 Category: Child Development Authors: Loretta Gasparini,
Sho Tsuji,
Christina Bergmann Tags: RESEARCH ARTICLE Source Type: research
Statistical learning in infancy predicts vocabulary size in toddlerhood
AbstractDuring the first 2 years of life, an infant's vocabulary grows at an impressive rate. In the current study, we investigated the impact of three challenges that infants need to overcome to learn new words and expand the size of their vocabulary. We used longitudinal eye-tracking data (n = 118) to assess sequence learning, associative learning, and probability processing abilities at ages 6, 10, and 18 months. Infants' ability to efficiently solve these tasks was used to predict vocabulary size at age 18 months. We demonstrate that the ability to make audio–visual association s and to predict sequences of vis...
Source: Infancy - April 26, 2022 Category: Child Development Authors: Anton Gerbrand,
Gustaf Gredeb äck,
Martina Hedenius,
Linda Forsman,
Marcus Lindskog Tags: RESEARCH ARTICLE Source Type: research
Individuation of agents based on psychological properties in 10 month‐old infants
AbstractWhat makes agents fundamentally different from each other from the viewpoint of a 10-month-old infant? While infants at this age can already individuate human-like objects from non-humanlike ones and self-propelled agents from inert objects, little is known of when and how they start individuating within the domain of agents. What is clear from previous studies is that differences in surface and dynamic features are not sufficient. We hypothesized that mental properties —in this case the agents' preferences—can serve as an individuating property. In our study, we familiarized infants with two animated agents wh...
Source: Infancy - April 24, 2022 Category: Child Development Authors: G ábor Bródy,
Katalin Oláh,
Ildikó Király,
Szilvia Bíró Tags: RESEARCH ARTICLE Source Type: research
Issue Information
(Source: Infancy)
Source: Infancy - April 17, 2022 Category: Child Development Tags: ISSUE INFORMATION Source Type: research
iCatcher: A neural network approach for automated coding of young children's eye movements
AbstractInfants' looking behaviors are often used for measuring attention, real-time processing, and learning —often using low-resolution videos. Despite the ubiquity of gaze-related methods in developmental science, current analysis techniques usually involve laborious post hoc coding, imprecise real-time coding, or expensive eye trackers that may increase data loss and require a calibration phase. As an alternative, we propose using computer vision methods to perform automatic gaze estimation from low-resolution videos. At the core of our approach is a neural network that classifies gaze directions in real time. We com...
Source: Infancy - April 13, 2022 Category: Child Development Authors: Yotam Erel,
Christine E. Potter,
Sagi Jaffe ‐Dax,
Casey Lew‐Williams,
Amit H. Bermano Tags: RESEARCH ARTICLE Source Type: research
Gesture development in infancy: Effects of gender but not bilingualism
AbstractGesture is an important communication tool that provides insight into infants' early language and cognitive development and predicts later language skills. While bilingual school-age children have been reported to gesture more than monolinguals, there is a lack of research examining gesture use in infants exposed to more than one language. In this preregistered study, we compared three groups of 14-month-old infants (N = 150) learning French and/or English: bilinguals (hearing a second language at least 25% of the time), exposed (hearing a second language 10%–24% of the time), and monolinguals (hearing one lang...
Source: Infancy - April 13, 2022 Category: Child Development Authors: Nathalie Germain,
Ana Maria Gonzalez ‐Barrero,
Krista Byers‐Heinlein Tags: RESEARCH ARTICLE Source Type: research
Beyond the familial: The development of emotional communication with mothers, fathers, and strangers
This study compared the development of infant communication with strangers to communication with mothers and fathers and examined the contribution of temperament to partner-specific communication patterns. A sample of 58 infants was observed at four and eight months during separate home-based face-to-face interactions with three partners (mother, father, and stranger). Infant visual, facial, and vocal communication behaviors were coded microanalytically. Each parent reported on infant temperament at both ages. Multilevel regression analyses indicated that infants gazed longer at strangers than at fathers, exhibited less sm...
Source: Infancy - April 11, 2022 Category: Child Development Authors: Eliala A. Salvadori,
Cristina Colonnesi,
Linnea Elsammak,
Frans J. Oort,
Daniel S. Messinger Tags: RESEARCH ARTICLE Source Type: research
Preverbal infants ’ sensitivity to grammatical dependencies
AbstractDuring their first months of life, infants can already distinguish function words (e.g., pronouns and determiners) from content words (e.g., verbs and nouns). Little research has explored preverbal infants' sensitivity to the relationships between these word categories. This preregistered study examines whether French-learning 8- and 11-month-olds track the grammatical dependencies between determiners and nouns as well as pronouns and verbs. Using the Visual Fixation Procedure, infants were presented with lists containing either grammatical (e.g.,tu manges“you eat”,des biberons“some bottles”) or ungrammatic...
Source: Infancy - March 30, 2022 Category: Child Development Authors: Mireille Babineau,
Anne Christophe Tags: RESEARCH ARTICLE Source Type: research
Maternal sensitivity during mealtime and free play: Differences and explanatory factors
This study examined whether observed maternal sensitivity differed between a mealtime and free-play setting, aiming to explain differences between the two situations by studying moderating effects of children's eating behavior. The sample cons isted of 103 first-time mothers and their 18-month-old children. Maternal sensitivity was assessed by coding videotaped interactions of free-play sessions and mealtimes, using the Ainsworth Sensitivity Scale (range 1–9). Additionally, child eating behavior during the meal was coded and also assess ed through the Child Eating Behavior Questionnaire—Toddlers. First, a small but sig...
Source: Infancy - March 25, 2022 Category: Child Development Authors: Merel S. Vliet,
Judi Mesman,
Janneke M. Schultink,
Carel M. J. L. Vereijken,
Vanessa E. G. Martens,
Shelley M. C. Veek Tags: RESEARCH ARTICLE Source Type: research
When it pays off to take a look: Infants learn to follow an object ’s motion with their gaze—Especially if it features eyes
AbstractSocial cues and instrumental learning are two aspects potentially fostering early gaze following. We systematically investigated the influence of social features (schematic eyes vs. reverse-contrast eyes) and gaze-contingent reinforcement (elicited vs. not elicited) on 4-month-olds ’ learning to attend to gaze-cued objects. In 4 experiments, we tested infants’ (N = 74) gaze following of a turning block with schematic or reverse-contrast eyes. In Experiments 1 and 2, infants could elicit an attractive animation in a training phase via interactive eye tracking by following the turning of the block. Experiments ...
Source: Infancy - March 10, 2022 Category: Child Development Authors: Christine Michel,
Sabina Pauen,
Stefanie Hoehl Tags: RESEARCH ARTICLE Source Type: research
