The contributions of temperament and maternal responsiveness to the mental development of small-for-gestational-age and appropriate-for-gestational-age infants

Fathering and children's relational aggression: Moderating effects of children's temperament and gender

In this exploratory study, we analyzed the contribution of fathering to relational aggression (RA) in middle childhood and the moderating role of children's temperament and gender. Participants (N = 234; 46% girls) were attending public elementary school (mean age = 8.15; SD = 1.23) in middle-class neighborhoods in two Spanish cities. Fathers provided information about their parenting practices using the Parenting Styles and Dimensions Questionnaire, parents gave data on their child's temperament using the Temperament in Middle Childhood Questionnaire and children provided information about their peers' aggressive behavior using the Mini Direct Indirect Aggression Inventory. Fathering dimensions considered were Authoritative Cold, Authoritative Warm, Physical Punishment, and Insecurity; temperament dimensions considered were negative affect (NA), effortful control (EC), activity (AC), and shyness (SH). Gender, fathering, and temperament dimensions additively accounted for a significant proportion of the variance observed in RA. Several significant interactions suggested that the effect of fathering on RA was moderated by temperament and, in some cases, by children's gender. NA increased the potential risk of Authoritative Cold fathering (CF) and, in boys only, of Insecure fathering, while EC potentiated the protective effect of Authoritative-Warm fathering and, in boys only, buffered the risk effect of CF. SH buffered the risk effect of CF and decreased the protective effect of Authoritative Warm fathering on RA. Lastly, AC also buffered the risk effect of CF on RA. Results are discussed in light of the protective or the vulnerability role of temperament and in relation to models that explain sensitivity differences to environmental contexts.

Prenatal environment and developmental trajectories: the intrauterine growth restriction

The prenatal environment is of fundamental importance for the fetus, as the fetus is particularly susceptible to environmental influences while in utero, and several prenatal adversities may constitute a risk factor for fetal growth and child development. Intrauterine growth restriction (IUGR) refers to a pregnancy complication involving the inadequate growth of the fetus in utero, with potential programming consequences on the children's brain-behavior development. In this narrative review we will discuss the most recent literature about IUGR children, including their development and their relationship with the prenatal and postnatal environment. In particular, as an attempt to an adaptive response to intrauterine changes, the brain development of IUGR fetuses follows abnormal developmental pathways, which likely has cascade effects on the future neurodevelopmental outcomes of the children. Cognitive and motor functions are in fact impaired, as well as IUGR children present, across studies, poor socio-emotional abilities and a greater risk for internalizing and externalizing behavior problems. The current work also highlights how the postnatal environment, and in particular parental care, has an important role in IUGR development, acting as a protective factor, or otherwise increasing their constitutional vulnerabilities. Overall, this narrative review has important implications for clinical practice, suggesting the need for long-term follow-up care with IUGR children and strategies supporting parent-child interactions as well.

Maternal depressive symptoms and infant temperament in the first year of life predict child behavior at 36 months of age

In a longitudinal study, mothers (N = 50) self-reported on their depressive symptoms (DS) and their child's behavior during the first year and at 36 months postpartum. Maternal DS during infancy were associated with child conduct problems (CP), suggesting a long-term association between maternal mental health and the development of child behavior. Infant temperament was also associated with child behavior so that negative affect predicted child CP, while infant surgency was associated with later hyperactivity-inattention. This study contributes to the literature by jointly assessing the role of maternal DS and infant temperament and showing that these are independent predictors of childhood behavior.

Characteristics and changes in characteristics of women and babies admitted to residential parenting services in New South Wales, Australia in the first year following birth: a population-based data linkage study 2000-2012

OBJECTIVE

To examine the characteristics of women and babies admitted to the residential parenting services (RPS) of Tresillian and Karitane in the first year following birth.

DESIGN

A linked population data cohort study was undertaken for the years 2000-2012.

SETTING

New South Wales (NSW), Australia.

PARTICIPANTS

All women giving birth and babies born in NSW were compared with those admitted to RPS.

RESULTS

During the time period there were a total of 1 097 762 births (2000-2012) in NSW and 32 991 admissions to RPS. Women in cohort 1: (those admitted to RPS) were older at the time of birth, more likely to be admitted as a private patient at the time of birth, be born in Australia and be having their first baby compared with women in cohort 2 (those not admitted to an RPS). Women admitted to RPS experienced more birth intervention (induction, instrumental birth, caesarean section), had more multiple births and were more likely to have a male infant. Their babies were also more likely to be resuscitated and have experienced birth trauma to the scalp. Between 2000 and 2012 the average age of women in the RPS increased by nearly 2 years; their infants were older on admission and women were less likely to smoke. Over the time period there was a drop in the numbers of women admitted to RPS having a normal vaginal birth and an increase in women having an instrumental birth.

CONCLUSION

Women who access RPS in the first year after birth are more socially advantaged and have higher birth intervention than those who do not, due in part to higher numbers birthing in the private sector where intervention rates are high. The rise in women admitted to RPS (2000-2012) who have had instrumental births is intriguing as overall rates did not increase.

Early psychosocial development of small for gestational age and intrauterine growth-restricted children: a systematic review

OBJECTIVE

To examine evidence regarding psychosocial development from one month to four years of age in small for gestational age and intrauterine growth-restricted children.

STUDY DESIGN

Studies were included if participants met criteria for small for gestational age or intrauterine growth restriction, follow-up was from age 1 month to 4 years, methods were described, and appropriate comparison groups were included. Methodological quality of included studies was assessed using quality-appraisal guidelines.

RESULTS

Of 3216 studies reviewed, 24 were included. Poorer psychosocial development was described for small for gestational age children in 15 and for intrauterine growth-restricted children in 3 studies. Only 5 studies measured placental insufficiency using Doppler ultrasound. Study heterogeneity limited synthesis and interpretation.

CONCLUSIONS

Although evidence suggests that small for gestational age children are at risk of poorer early childhood psychosocial outcomes, further research is required to clarify whether placental insufficiency is associated with poorer early psychosocial development.

Parenting and cognitive and psychomotor delay due to small-for-gestational-age birth

BACKGROUND

To examine whether different dimensions of parenting at different ages help small-for-gestational-age (SGA) children 'catch-up' the normal children in cognition and psychomotor.

METHODS

We analyzed data of 800 children born SGA and 3,000 children born appropriate-for-gestational-age (AGA) from the Early Childhood Longitudinal Study-Birth cohort. The Two Bag Task was used to measure 2-year or 4-year parenting dimensions. Children's reading, math, gross motor, and fine motor scores were assessed at 5 years. Multivariable linear regression models were fitted to test the interactions between SGA and 2-year or 4-year parenting dimensions on 5-year cognitive and psychomotor outcomes (dependent variables).

RESULTS

There were significant interactions between SGA and early parenting on 5-year reading, math, and fine motor scores. The gap between SGA and AGA children in 5-year fine motor score was attenuated to null [-0.25 (95% confidence interval, -0.41, -0.09) vs. 0.03 (-0.13, 0.20)] when 2-year parental sensitivity score increased from 1 standard deviation (SD) below mean (Mean - SD) to 1 SD above mean (Mean + SD). The gap between SGA and AGA children in 5-year fine motor [-0.28 (-0.44, -0.13) vs. 0.06 (-0.09, 0.22)] and math [-1.32 (-2.27, -0.37) vs. 0.20 (-0.77, 1.17)] scores was also attenuated to null when 4-year parental emotional support score increased from Mean - SD to Mean + SD. In contrast, the gap between SGA and AGA children in 5-year reading score increased from 0.49 (-0.90, 1.88) to -1.31 (-2.55, -0.07) when 4-year parental intrusiveness score increased from Mean - SD to Mean + SD. Similarly, the gap between SGA and AGA children in fine motor score increased with 4-year parental negative regard from 0.02 (-0.14, 0.18) to -0.23 (-0.38, -0.08).

CONCLUSIONS

Early high-quality parenting may buffer some adversity in long-term reading, math, and fine motor skills related to SGA birth, whereas low-quality parenting can amplify the adversity.

Effects of prenatal substance exposure on infant temperament vary by context

This was a prospective longitudinal multisite study of the effects of prenatal cocaine and/or opiate exposure on temperament in 4-month-olds of the Maternal Lifestyle Study (N = 958: 366 cocaine exposed, 37 opiate exposed, 33 exposed to both drugs, 522 matched comparison). The study evaluated positivity and negativity during The Behavior Assessment of Infant Temperament (Garcia Coll et al., 1988). Parents rated temperament (Infant Behavior Questionnaire; Rothbart, 1981). Cocaine-exposed infants showed less positivity overall, mainly during activity and threshold items, more negativity during sociability items, and less negativity during irritability and threshold items. Latent profile analysis indicated individual temperament patterns were best described by three groups: low/moderate overall reactivity, high social negative reactivity, and high nonsocial negative reactivity. Infants with heavy cocaine exposure were more likely in high social negative reactivity profile, were less negative during threshold items, and required longer soothing intervention. Cocaine- and opiate-exposed infants scored lower on Infant Behavior Questionnaire smiling and laughter and duration of orienting scales. Opiate-exposed infants were rated as less respondent to soothing. By including a multitask measure of temperament we were able to show context-specific behavioral dysregulation in prenatally cocaine-exposed infants. The findings indicate flatter temperament may be specific to nonsocial contexts, whereas social interactions may be more distressing for cocaine-exposed infants.

Infant temperament: stability by age, gender, birth order, term status, and socioeconomic status

Two complementary studies focused on stability of infant temperament across the 1st year and considered infant age, gender, birth order, term status, and socioeconomic status (SES) as moderators. Study 1 consisted of 73 mothers of firstborn term girls and boys queried at 2, 5, and 13 months of age. Study 2 consisted of 335 mothers of infants of different gender, birth order, term status, and SES queried at 6 and 12 months. Consistent positive and negative affectivity factors emerged at all time points across both studies. Infant temperament proved stable and robust across gender, birth order, term status, and SES. Stability coefficients for temperament factors and scales were medium to large for shorter (< 9 months) interassessment intervals and small to medium for longer (> 10 months) intervals.

Birth characteristics and developmental outcomes of infants of Mexican-origin adolescent mothers: Risk and promotive factors

Infants of adolescent mothers are at increased risk for negative developmental outcomes. Given the high rate of pregnancy among Mexican-origin adolescent females in the US, the present study examined health characteristics at birth and developmental functioning at 10 months of age in a sample of 205 infants of Mexican-origin adolescent mothers. Infants were relatively healthy at birth and had near average developmental functioning at 10 months. The educational attainment of adolescents and their mothers, and infants' temperamental regulation, promoted positive developmental functioning, while the combination of low adolescent parental self-efficacy and high infant temperamental negativity was associated with greater developmental delay. Findings are discussed with respect to implications for prevention with this at-risk population of mothers and infants.

Growth in temperament and parenting as predictors of adjustment during children's transition to adolescence

The author examined relations among demographic risk (income, maternal education, single-parent status), growth in temperament (fear, irritability, effortful control), and parenting (rejection, inconsistent discipline) across 3 years and the prediction of children's adjustment problems in a community sample (N=190; ages 8-12 years at Time 1). Family income was related to higher initial levels of fear, irritability, rejection, and inconsistency and lower effortful control but was not related to changes in these variables. Higher initial rejection predicted increases in child fear and irritability. Higher initial fear predicted decreases in rejection and inconsistency. Higher initial irritability predicted increases in inconsistency, and higher initial effortful control predicted decreases in rejection. When growth of parenting and temperament were considered simultaneously, increases in effortful control and decreases in fear and irritability predicted lower Time 3 internalizing and externalizing problems. Increases in rejection and inconsistent discipline predicted higher Time 3 externalizing, although sometimes the effect appeared to be indirect through temperament. The findings suggest that temperament and parenting predict changes in each other and predict adjustment during the transition to adolescence.

Gender differences in temperament: A meta-analysis

The authors used meta-analytical techniques to estimate the magnitude of gender differences in mean level and variability of 35 dimensions and 3 factors of temperament in children ages 3 months to 13 years. Effortful control showed a large difference favoring girls and the dimensions within that factor (e.g., inhibitory control: d = -.41, perceptual sensitivity: d = -0.38) showed moderate gender differences favoring girls, consistent with boys' greater incidence of externalizing disorders. Surgency showed a difference favoring boys, as did some of the dimensions within that factor (e.g., activity: d = 0.33, high-intensity pleasure: d = 0.30), consistent with boys' greater involvement in active rough-and-tumble play. Negative affectivity showed negligible gender differences.

Do Gestational Age and Weight for Gestational Age Predict Concordance in Parental Perceptions of Infant Temperament?

OBJECTIVE

To study whether infant weight for gestational age, and gestational age predict mother- and father-rated infant temperament (IBQ) at 6 months.

METHODS

The sample comprised of family units with both biological parents and infants born at term (n = 152). Data on weight and gestational age were collected form obstetric database.

RESULTS

Infants born small for gestational age (SGA) (weight < 10th percentile for gestational age) were rated by both parents as significantly more fearful and negatively reactive compared to infants born appropriate for gestational age (AGA). Infants born SGA defined by using the lowest 15th or 20th percentile groups did not differ from AGA group in temperament. The weekly continuum of gestational age predicted differences in parental ratings of infant temperamental attentiveness.

CONCLUSIONS

The predictive significance of infant weight for gestational age and gestational age for behavioral outcomes appear true also for infants born at term. Concordance in parental perceptions of an infant born SGA emphasizes the clinical significance of the findings.

[A questionnaire for assessment of "temprament in early childhood" as judged by parents]

OBJECTIVES

This study assesses a German version of Rothbart's Infant Behavior Questionnaire for the internal consistency, inter-correlations and stability of the scales. Associations between the scales with maternal depression and anxiety are analyzed.

METHODS

Independent samples of infants aged 6 to 8 months and 10 to 12 months (n = 149, respectively n = 109) and their mothers were studied. A longitudinal study of a sample of 101 mother-infant pairs was carried out at the infant's age of 4, 8 and 12 months.

RESULTS

The internal consistency and independence of the five scales on the questionnaire are satisfactory. The stability coefficients correspond to a good degree to those of the American version of the IBQ scales.

CONCLUSIONS

Thus a German version is now available that can be used in research and practice to measure the features of early childhood temperament by parental report.

Working memory and inhibitory control in early childhood: Contributions from physiology, temperament, and language

This study examined the cognitive skills of working memory and inhibitory control (WMIC) in relation to physiological functioning, temperament, and language in early childhood. WMIC skills were assessed in twenty-five 4 1/2-year-old children using the day--night Stroop-like task and the yes--no task; each task required the child to remember two rules and to inhibit a dominant response. Electroencephalogram (EEG) and heart period (HP) were recorded during baseline and WMIC tasks. An increase in 6- to 9-Hz EEG power from baseline to task was found for the medial frontal region. In addition, a decrease in HP (i.e., an increase in heart rate) was found from baseline to task. Associations were found between performance on the WMIC tasks and scales of the Children's Behavioral Questionnaire (CBQ) related to the effortful control of behavior. The Peabody Picture Vocabulary Test-III (PPVT-III) distinguished between high and low WMIC performance. Results of a discriminant function analysis indicated that physiology, temperament, and language were able to correctly predict 90% of WMIC performance.

Early pain in preterm infants. A model of long-term effects

There are multiple lines of evidence suggesting that in vulnerable prematurely born infants, repeated and prolonged pain exposure may affect the subsequent development of pain systems, as well as potentially contribute to alterations in long-term development and behavior. Multiple factors cumulatively contribute to altered developmental trajectories in such infants. These include characteristics of the developing organism (low tactile threshold, sensitization, rapid brain development), characteristics intrinsic to the infant (gestation, illness severity), characteristics of the experience in the neonatal intensive care unit (pain exposure and cumulative stress), and characteristics of the caregivers within their family and social context. This article provides a model for examining long-term effects of pain in the newborn period embedded in a developmental context framework.