Maternal sensitivity in interactions with their 2-month-old infants in Rio de Janeiro - Brazil.

This paper reports on a study of maternal sensitivity in 22 primiparous women and their infants from Rio de Janeiro, Brazil. Sociodemographic risk was assessed through an interview, and videotaped naturalistic home observations were used to assess maternal sensitivity, and its relation with warmth, verbal and physical engagement, and camera awareness. A K-means cluster analysis was performed to examine patterns of risk in relation to maternal sensitivity.

Maternal sensitivity in interactions with their 2-month-old infants in Rio de Janeiro - Brazil.

This paper reports on a study of maternal sensitivity in 22 primiparous women and their infants from Rio de Janeiro, Brazil. A semi-structured interview was conducted about sociodemographic risk, as and videotaped home observations to assess maternal sensitivity, and its relation with warmth, verbal and physical engagement, and camera awareness. A K-means cluster analysis was performed to examine patterns of risk in relation to maternal sensitivity.

Maternal sensitivity in mother-infant interactions in Rio de Janeiro - Brazil.

This article reports on a study of maternal sensitivity in 22 primiparous women and their infants from Rio de Janeiro, Brazil. Two semi-structured interviews were conducted, as well as videotaped naturalistic home observations of the dyads. A K-means cluster analysis was performed to examine patterns of risk in relation to maternal sensitivity.

Inconsistent reports of risk behavior among Brazilian middle school students: National School Based Survey of Adolescent Health (PeNSE 2009/2012).

This study assessed the consistency of self-reports of risk behavior (overall and within four specific domains: alcohol use, tobacco use, drug use, and sexual activity) in two editions of the Brazilian National School Based Survey of Adolescent Health (PeNSE): 2009 and 2012. The overall proportion of cases with at least one inconsistent response in the two editions was 11.7% (2.

The role of city income inequality, sex ratio and youth mortality rates in the effect of violent victimization on health-risk behaviors in Brazilian adolescents.

This study integrates insights from evolutionary psychology and social epidemiology to present a novel approach to contextual effects on health-risk behaviors (unprotected sex, drunkenness episodes, drugs and tobacco experimentation) among adolescents. Using data from the 2012 Brazilian National Survey of Adolescent Health (PeNSE), we first analyzed the effects of self-reported violent victimization on health-risk behaviors of 47,371 adolescents aged 10-19 nested in the 26 Brazilian state capitals and the Federal District. We then explored whether the magnitude of these associations was correlated with cues of environmental harshness and unpredictability (youth external mortality and income inequality) and mating competition (sex ratio) from the city level.

Different kinds of infants' smiles in the first six months and contingency to maternal affective behavior.

Infants' smiling is considered an expression of affection, and an index of cognitive and socio-emotional development. Despite research advances in this area, there is much to explore on the ontogeny of smiling, its meaning and the context in which it is manifested early in life. This study aimed at: (a) investigating smiling patterns in these different developmental moments in early infancy, (b) analyzing patterns of association between babies' smiles and their mothers' affective behaviors, and (c) verifying whether babies can answer contingently, with smiles, to mothers' affective behaviors.

Dimensions of familial allocentrism in Brazilian mothers from state capitals and small cities.

This study focuses on 606 Brazilian women's cultural models regarding their relation with their family, as evaluated by the Family Allocentrism Idiocentrism Scale (FAS). The scale was translated into Portuguese, submitted to back-translation and adapted. Analyses of the scale's structure indicated that the best fit model involves two independent factors.

Profiles of maternal care observed in a group of Brazilian mothers: an exploratory study.

The aim of this study is to characterize profiles of maternal care in a sample of Brazilian mothers, using a cultural-biological perspective. Participants were 315 women who had at least one child younger than six years-old. They were selected from six Brazilian states.

Self-recognition and self-regulation: the relationship with socialization trajectories and children's sex.

The initial process of self development involves interaction with others and the establishment of relationships taking different paths depending on the socio-cultural context. Self-recognition and self-regulation are considered manifestations of this development between 18 and 24 months of age. This study aimed at analyzing the relationship between these two aspects, maternal beliefs about autonomy and relatedness, as well as identifying differences between boys and girls in this developmental stage.

Autonomy and interdependence: beliefs of Brazilian mothers from state capitals and small towns.

This study aimed to investigate characteristics of Brazilian mothers' beliefs system, in the dimensions of autonomy and interdependence. A group of 600 women, half from state capitals and half from small towns, participated in the study. They were individually interviewed with Scales of Allocentrism, Beliefs about Parental Practices and Socialization Goals.

Parenting cultural models of a group of mothers from Rio de Janeiro.

Developmental contexts have been studied in terms of systems of beliefs and practices, treated as part of general cultural models. This paper aims to describe aspects of parenting cultural models of a group of 200 primiparous Brazilian mothers from Rio de Janeiro, who had children less than 44 months old. Mothers answered the Socialization Goals Interview (SGI), and an adapted version of an inventory of beliefs about practices of care, developed by M.

The ontogenesis of smiling and its association with mothers' affective behaviors: A longitudinal study.

Two babies were observed from their third week to their sixth month of life. Our goals in the study were: to investigate developmental changes in smiling patterns; to analyze the smiling patterns observed in the presence of mother's affective behaviors, and to verify whether the babies can answer contingently, with smiles, to mothers' affective behaviors. The babies and their mothers were videotaped at home.