Infants' stress responses and protest behaviors at childcare entry and the role of care providers.

During the transition from home to childcare, 70 15-month-old infants were videotaped, and their negative emotions were rated. Infants' attachments to mothers were assessed prior to child care entry and to care providers five months later using the Strange Situation Procedure (SSP). Infant heart rate was monitored at home, during adaptation to childcare (mothers present), and during subsequent separations. Respiratory sinus arrhythmia (RSA) was computed from the beat-to-beat measures of heart rate to reflect vagal tone, which is reduced during chronic states of stress, and was collected upon Arrival, during in-group Play, and when in the Group more generally. All infants responded to childcare entry with low RSA levels indicating stress. However, during adaptation with the mother present, RSA was higher for securely attached infants. On the first separation day, 35.3% of the infants fussed and cried extensively. These intense protests predicted later secure attachments to care providers, which adaptively helped to reduce stress, especially in infants who protested extensively, as if summoning their mothers back. Because extensive protest suggests limited regulatory capacities, infants risk overburdening the stress system when left unsupported.

Attachment and stress regulation in socioeconomically disadvantaged children: Can public childcare compensate?

Children growing up in families experiencing socioeconomic disadvantage (SED) are at greater risk for deficits in attachment and stress regulation as compared to peers in families with more socioeconomic resources. The present study hypothesized that care providers in out-of-home care might help these children to compensate. We therefore investigated 60 children (n = 30 from SED, n = 30 matched counterparts from middle class) and assessed children's Attachment Q-Sort (AQS) toward the mother and the primary care provider in childcare centers. Moreover, children's diurnal cortisol rhythm was measured based on 12 saliva samples taken across three days a week. The disadvantaged children showed lower AQS scores with their mothers than their care providers. Compared to their counterparts, disadvantaged children also displayed heightened cortisol release and flatter cortisol profiles reflecting overall high hypothalamic-pituitary-adrenocortical activities and lower capacities to regulate stress. Most notably however, multilevel path modeling linked higher care provider AQS scores to decreasing cortisol release throughout the week.

Los niños que crecen en familias que experimentan desventajas socioeconómicas (SED) se encuentran bajo mayor riesgo de déficits en la afectividad y regulación del estrés, comparados con compañeros de familias con más recursos socioeconómicos. EL presente estudio presenta la hipótesis de que quienes cuidan a estos niños dentro del sistema público de guarderías pudieran ayudarles a compensar. Nosotros, por tanto, investigamos a 60 niños (n = 30 de SED, n = 30 niños de clase media pareados como contraparte) y evaluamos la afectividad de los niños (AQS) hacia las madres y quienes les proveían el cuidado primario en guarderías infantiles públicas. Es más, se midió el ritmo diurno de cortisol de los niños con base en 12 muestras de saliva tomadas a lo largo de tres días a la semana. Los niños con desventajas mostraron más bajos puntajes de AQS con sus madres que con quienes les prestaban el cuidado. Comparados con su contraparte, los niños con desventajas también mostraron un elevado nivel de emisión de cortisol y perfiles de cortisol más planos lo cual refleja en general un alto nivel de actividades HPA y más bajas capacidades para regular el estrés. Aún más notable, sin embargo, el modelo de trayectoria a múltiples niveles relacionó los más altos puntajes AQS del cuidador con una baja en la emisión de cortisol a lo largo de la semana.

Les enfants grandissant dans des familles faisant l'expérience d'un désavantage socioéconomique (abrégé ici DSE) sont à plus grand risque de déficits dans l'attachement et la régulation du stress comparés aux enfants grandissant dans des familles dotées de plus de ressources socioéconomiques. Cette étude a pris pour hypothèse que les personnes s'occupant des enfants dans les crèches publiques pourraient aider ces enfants à compenser. Nous avons donc étudié 60 enfants (n = 30 de SED, n = 30 homologues issus de la classe moyenne) et évalué l'attachement (AQS) des enfants envers leur mère et envers les personnes prenant soin d'eux dans les crèches publiques. De plus le rythme de cortisol diurne a été mesuré basé sur des échantillons de salive pris au cours de trois jours par semaine. Les enfants de milieu désavantagé ont fait preuve de scores AQS plus bas avec leurs mères qu'avec les personnes prenant soin d'eux dans les crèches. Comparés à leurs homologues, les enfants désavantagés ont aussi fait preuve de sécrétion de cortisol plus élevée et des profils de cortisol plus plats reflétaient des activités HPA dans l'ensemble hautes et des capacités plus basses à réguler le stress. Plus particulièrement cependant une modélisation à plusieurs niveaux a établi un lien entre des scores AQS plus élevés des modes de soin à la crèche à des sécrétions de cortisol décroissantes tout au long de la semaine.

Student-teacher relationships and classroom climate in first grade: how do they relate to students' stress regulation?

The present study involved 105 German students at the end of their first semester in elementary school in order to explore the stress that students may experience within the school environment, and how the relationship with the teacher buffers or exacerbates the stress. Student-teacher relationships were explored on both classroom and individual interaction levels. Classrooms were described by external observers in terms of teachers' support and classroom organization. Teachers reported on the relationships with their students regarding closeness, conflict, and dependency, which determined four specific patterns of student-teacher relationships. Furthermore, saliva samples were taken on a Monday and a Friday of the same week (four times each day) to display diurnal cortisol profiles. These profiles were later evaluated by means of slopes and intercepts, reflecting students' daily stress regulation. Comparisons between Monday and Friday profiles of the same student served as an estimate for the stress regulation throughout the week. Finally, associations between the profiles and the specific relationship patterns provided information on significant environmental conditions for students' stress. Students in non-supportive, as compared to supportive, classrooms had flatter cortisol profiles, suggesting that classrooms of low quality hindered sufficient down-regulation of cortisol levels at both the beginning and the end of the week. Moreover, students with conflict-loaded relationships with their teachers were less able to appropriately down-regulate stress (especially on Fridays) than students with proximal-balanced relationships, showing the most optimal cortisol profiles.