An official website of the United States government
Abstract Relations between maternal baseline cortisol and infant cortisol reactivity to an emotion induction procedure at child ages 7, 15, and 24 months were analyzed using data from the Family Life Project (N = 1,292). The emotion induction consisted of a series of standardized and validated tasks, including an arm restraint, toy removal, and mask presentation, intended to elicit responses of fear and frustration. Results revealed that at 7 and 15 months, maternal baseline cortisol was negatively related to child cortisol reactivity, such that children of mothers with lower cortisol exhibited steeper cortisol increases in response to the emotion induction. At 24 months, the association between mother and infant cortisol was moderated by socioeconomic risk, such that maternal baseline cortisol was associated with child cortisol reactivity only in dyads characterized by low socioeconomic risk. Furthermore, at 24 months, children of mothers with low baseline cortisol and low socioeconomic risk exhibited decreasing cortisol responses, whereas children of mothers with low baseline cortisol but high risk exhibited flat cortisol responses. Children in dyads characterized by high baseline maternal cortisol also exhibited flat cortisol responses regardless of socioeconomic risk. The role of caregiver physiology in the regulation of the child's stress response in the context of adversity is discussed.
more »
« less
This content will become publicly available on July 22, 2026
The Natural History of Child Signals of Need in Utila, Honduras: An Exploratory Study
To gain support, children use signals to communicate their needs and wants to parents. Infant signals of need, particularly infant cries, have been extensively studied in diverse populations. However, the full range of potential child signals of need, which extend beyond cries, has rarely been investigated in a single study of children of all ages. To help fill this gap, we collected mother and other primary caregiver reports of three common types of child signaling from 131 families with 263 children on Utila, a small island off the coast of Honduras. In exploratory analyses, we found that child signaling was common in both sexes and across all ages, although it decreased with age and neighborhood quality and increased with the frequency of conflict between children and caretakers. Consistent with signaling theory, children who were sad more frequently were perceived as needier within the household and were more likely to receive investment. Caregivers were less likely to respond positively in situations of family conflict or child transgressions, and more likely for injuries and illness. Our results suggest that evolutionary theories of signaling can help explain patterns of child sadness, crying, and temper tantrums.
more »
« less
- Award ID(s):
- 1945740
- PAR ID:
- 10628070
- Publisher / Repository:
- Springer
- Date Published:
- Journal Name:
- Human Nature
- ISSN:
- 1045-6767
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
More Like this
-
-
Abstract Family homeless shelters are critical contexts in which many young children develop; however, little is known about the developmental appropriateness of these settings, including their resources and the capacity of their staff to effectively meet the needs of the children and families they serve. The current study involves both quantitative and qualitative components to assess aspects of developmental appropriateness of US shelter spaces for children ages birth to 5 years, with an emphasis on staff knowledge, parenting programmes, and play spaces. Participants were 64 staff working in different family homeless shelters representing all 10 Housing and Urban Development regions. Data were collected via semistructured phone interviews. Results indicated that most shelters offered some type of parenting programme (65.5%) and had some developmentally appropriate space for families with young children (87.5%); however, the nature of these spaces and programmes varied considerably, with very few respondents describing use of evidence‐based practices. Findings on knowledge of early child development among shelter staff indicated substantial need for trainings on a range of topics, including typical child development, parent–child relationships, and impacts of trauma on families with young children. Furthermore, we identified a need for better measurement tools to assess knowledge of child development.more » « less
-
Abstract Children's relationships with parents and peers have been examined as predictors and outcomes, respectively, of theory of mind (ToM). Yet, these two lines of inquiry have remained largely distinct. The current study bridges this gap. Mother–child coordinated interaction and attachment security (continuous rating) were assessed at 2.8 years (N = 128 dyads), ToM was assessed at 3.3, 4.8, and 5.4 years, and child–friend interaction was observed at 4.8 and 5.4 years. Controlling for child expressive language ability at 2.8 years, mother–child coordinated interaction predicted more complex child–friend play and less child–friend conflict via more advanced ToM. No indirect effects from attachment security to friendship quality via ToM emerged. Attachment group status (secure vs. insecure), however, moderated ToM‐friendship associations, such that (a) more advanced ToM predicted more socially complex play with friends, and (b) more conflict with friends predicted more advanced ToM, but only for children classified as secure.more » « less
-
Breath monitoring is important for monitoring illnesses, such as sleep apnea, for people of all ages. One cause of concern for parents is sudden infant death syndrome (SIDS), where an infant suddenly passes away during sleep, usually due to complications in breathing. There are a variety of works and products on the market for monitoring breathing, especially for children and infants. Many of these are wearables that require you to attach an accessory onto the child or person, which can be uncomfortable. Other solutions utilize a camera, which can be privacy-intrusive and function poorly during the night, when lighting is poor. In this work, we introduce BuMA, an audio-based, non-intrusive, and contactless, breathing monitoring system. BuMA utilizes a microphone array, beamforming, and audio filtering to enhance the sounds of breathing by filtering out several common noises in or near home environments, such as construction, speech, and music, that could make detection difficult. We show that BuMA improves breathing detection accuracy by up to 12%, within 30cm from a person, over existing audio filtering algorithms or platforms that do not leverage filtering.more » « less
-
Finding and exploiting loopholes is a familiar facet of fable, law, and everyday life. But cognitive, computational, and em- pirical work on this behavior remains scarce. Engaging with loopholes requires a nuanced understanding of goals, social ambiguity, and value alignment. We trace loophole behavior to early childhood, and we propose that exploiting loopholes results from a conflict in actors’ goals combined with a pres- sure to cooperate. A survey of 260 parents reporting on 425 children reveals that loophole behavior is prevalent, frequent, and diverse in daily parent-child interactions, emerging around ages five to six and tapering off from around ages nine to ten into adolescence. A further experiment shows that adults con- sider loophole behavior in children as less costly than non- compliance, and children increasingly differentiate loophole behavior from non-compliance from ages four to ten. We dis- cuss limitations of the current work together with a proposal for a formal framework for loophole behavior.more » « less
