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1.
The purpose of this study was to quantify social interaction rhythms in 3- and 5-month-old term and preterm infants and their mothers. Infant-mother dyads were videotaped in a 3-min face-to-face paradigm. For each second of the interaction, separate scores were assigned to infant and mother indicating levels of affective involvement, creating 2 180-sec time series. Spectral and cross-spectral techniques were used to quantify periodicities in each member of the dyad and to estimate the synchrony or coherence of interactional rhythms between each infant and mother. Results showed the existence of periodicities in the behavior of each infant and mother at 3 and 5 months, with most subjects showing spectral peaks between .022 and .10 Hz. Increases from 3 to 5 months in behavioral periodicities were found for infants and mothers as well as for the coherence between infant-mother dyads. Term dyads showed higher coherence than preterm dyads at both 3 and 5 months. Term infants more often led the interaction at both ages. These results were taken as evidence that behavioral periodicities, which may be biologically based, underlie early mother-infant interaction and provide a temporal structure for the organization of cognitive and affective experience. Differences in synchrony between term and preterm infants may explain later reported differences in language between these groups.  相似文献   

2.
The expressive behaviors of full-term and preterm infants and their mothers were examined during face-to-face interaction when the infants were approximately 2 1/2, 5, and 7 1/2 months old. Videotapes of the sessions were coded on a second-to-second basis using Izard's discrete emotion coding system. Overall, infants showed a linear increase in positive effect, especially interest and joy, and a corresponding decrease in negative affect, especially pain and knit brow, with age; decrease in negative affect was accounted for largely by the preterm infants. In terms of maternal responses, there was an increase in contingent responding to infant interest expressions and a decrease in contingent responding to infant pain expressions over time, especially in the case of the preterm infant. The data set as a whole was examined further to establish the directionality of influence between mothers and infants in change patterns over time. There was evidence of learning effects in infants as a function of maternal modeling and contingency patterns. Anomalies in maternal responses to preterm infant affect expressions were observed. Mothers of these infants displayed significantly less matching or imitation of their infant's facial expressions, showed random rather than contingent responsiveness to sadness, and a significant ignoring response to infant anger. These differences were attributed to differences in gazing patterns and negative emotion expression in preterm infants. The results are discussed within a framework of emotion socialization that recognizes bidirectionality of influence in the emotional patterns of mothers and infants.  相似文献   

3.
Most previous studies of children with birthweight <750 g have focused on early childhood sequelae. To evaluate later outcomes, a regional sample of 60 <750-g birthweight children was compared at middle school age (M = 11 years) to 55 children with birthweight 750-1,499 g and 49 term controls. The groups were matched on age, gender, and demographic variables at the time of an early-school-age assessment (mean age 7 years). The <750-g birthweight group fared less well at middle school age than the term group on measures of cognitive function, achievement, behavior, and academic performance. In many instances, outcomes were less favorable for the <750-g children than for the 750 to 1,499-g group. Children in the <750-g group who were free of neurosensory disorders and global cognitive impairment performed more poorly on several tests than their term counterparts. Group differences in this subsample on tests of motor skills, math, and the ability to copy and recall a complex drawing remained significant even after controlling for IQ. Disparities between the <750-g and term groups increased with age for some measures. Despite favorable outcomes for many children in the <750-g group, this population is at risk for long-term developmental problems.  相似文献   

4.
S A Rose 《Child development》1983,54(5):1189-1198
This study investigated the effect of increasing familiarization time on the visual recognition memory of 6- and 12-month-old full-term and preterm infants. Infants were given trials in which they viewed a shape for either 10-, 15-, 20-, or 30-sec familiarization and were then tested for visual recognition memory using the paired comparison technique. While the older infants showed evidence of recognition memory after less familiarization time than the younger ones, at both ages preterms required considerably longer familiarization than full-terms. The pattern of performance replicates our earlier finding of developmental lags in the visual information processing of 6-month-old preterms and extends these findings to 12-month-olds. These results suggest that there are persistent differences between preterm and full-term infants throughout at least the first year of life in this very fundamental aspect of cognition.  相似文献   

5.
This study examined achievement, neuropsychological, and intervention outcomes at a mean age of 11 years in children with very low birthweight (VLBW, <1500 g) compared with a term-born control group. To assess the prevalence and correlates of specific learning disabilities (LD), the sample was limited to children without neurosensory disorders who had at least low average IQ. Participants included 31 children with <750 g birthweight, 41 with 750-1499 g birthweight, and 52 controls. The <750 g group obtained lower scores in math, IQ, and perceptual-organizational skills than the term-born group. The < 750 g group also had higher rates of past and present LD than the controls. Despite these differences, the groups did not differ significantly in rates of special education or tutorial/remedial assistance. These findings suggest that children with extremely low birthweight without gross physical or intellectual impairments are at higher risk for LD and cognitive deficiencies than their term-born peers and that further efforts are needed to improve identification and treatment of these learning problems.  相似文献   

6.
The accuracy of a risk index based on reproductive and demographic factors to predict subsequent development was tested with 51 full-term and 53 preterm (birth weight less than 1,501 grams) infants. Stanford-Binet IQ and Reynell Language Expression and Comprehension at 3 years were significantly predicted by this risk index. Socioeconomic status, birth order, and, for the preterm group, severity of illness in the perinatal period were the most significant predictors of developmental outcome. The Home Observation for Measurement of the Environment (HOME) scores were significantly correlated, independently of SES and developmental level, with the 3-year Reynell and Stanford-Binet scores for the preterm, but not the full-term, group. Children who were classified as being at risk at 12 months but who had scores in the normal range at 3 years came from families with significantly higher scores on the HOME scale. Children not detected as being at risk in infancy but whose development was delayed at 3 years came from families with lower scores on the HOME scale. The combination system of perinatal, reproductive, and environmental variables allows the detection of infants at risk for subsequent developmental problems.  相似文献   

7.
The role of maternal chronological age in prenatal and perinatal history, social support, and parenting practices of new mothers (N=335) was examined. Primiparas of 5-month-old infants ranged in age from 13 to 42 years. Age effects were zero, linear, and nonlinear. Nonlinear age effects were significantly associated up to a certain age with little or no association afterward; by spline regression, estimated points at which the slope of the regression line changed were 25 years for prenatal and perinatal history, 31 years for social supports, and 27 years for parenting practices. Given the expanding age range of first-time parents, these findings underscore the importance of incorporating maternal age as a factor in studies of parenting and child development.  相似文献   

8.
This study describes the development of emotional and behavioral regulation in a regional cohort of children born extremely preterm (<28 weeks gestational age, n = 39), very preterm (<34 weeks gestational age, n = 56), and full term (n = 103). At 2 and 4 years, children born at younger gestational ages demonstrated poorer self-regulation across multiple contexts spanning observed interactions, formal cognitive testing, and parental report of child behavior at home. Among children born preterm, the 2 strongest predictors of impairments in self-regulation were the presence of moderate-to-severe cerebral white matter abnormalities on neonatal magnetic resonance and a less sensitive parenting style when children were aged 2 years. Findings support the importance of early neurological development and parenting for developing regulation in children born very preterm.  相似文献   

9.
Maternal separation in young pigtail (M. nemestrina) monkeys results in an agitation-depression reaction that is a useful animal model of the behavioral and physiological consequences and separation and loss experiences in humans. In this study, 5 social-group-living bonnet (M. radiata) monkey infants were separated from their mothers for 4 days, and behavioral, physiological, and sleep-pattern changes were monitored. Behavioral and physiological changes were consistent with an agitation reaction. There was evidence of depression in both behavioral and physiological measures; these changes were not as pronounced as in pigtail infants, however. All infants were adopted by another adult female during separation. Our findings suggest that, in bonnet monkey infants, adoption by a female within the social group ameliorates the response to loss.  相似文献   

10.
This investigation involved the longitudinal assessment of 30 mother-preterm and 40 mother-full-term dyads from birth to 2 years of age. Measures of maternal attitudes, maternal perception of the infant, and parental functioning were obtained at 1 and 8 months of infant age. Mother-infant interactions were observed at 4, 8, 12, and 24 months. Infant cognitive, motor, and language development was assessed at 4, 12, and 24 months. Results indicated that by age 2 years, no group differences were apparent on any child development, mother-child interaction, or maternal attitudinal measures; the lone exception was that preterms were significantly poorer in motor skills. This similarity in functioning at age 2 years was in marked contrast to earlier findings of major group differences at 12 months. Correlational and regression analyses indicated that the developmental and social interaction outcomes were predicted by different factors in the two groups; moreover, whereas 40%-60% of the variance in preterm infants' social and cognitive outcomes could be accounted for, only 15%-30% was accounted for in the full-term group. These results are discussed in terms of compensatory mechanisms that may characterize the parenting of high-risk infants, and of the applicability of transactional models of development.  相似文献   

11.
Data from cross-cultural studies on parental behaviour during early social interaction suggest that structural and universal features should be differentiated from culturally specific ones. No direct relations can be assumed to exist between specific forms of child rearing and development of skills in the child. However child rearing practices can have long term effects and affect social behaviours. As an illustration, we compare interactive styles of 40 French and African mothers living in Paris in an object play situation, with their 10 and 15 month-olds. French mothers’ interactions with their children are illustrative of tight connections between verbal and non-verbal behaviour. Action is the basis or anchor point for verbal exchange; and this repetition or verbal redundnacy yields discourse-on-actions which to a certain extent distances the action and allows for a generalization process to take place. In contrast, African mothers’ interactions with their infants present less verbal scaffolding of non-verbal behaviour. This type of interaction allows for a greater «disjunction» or separation of non-verbal and verbal communication. African cultures do not assign the spoken word with the educational function of structuring and planning activities. However, the models generated by the school system correspond to other types of obligations which are strongly affected by temporal perspectives.  相似文献   

12.
The behavior of 4 groups of infants--healthy term, healthy preterm, sick preterm, and sick full-term--was assessed in the neonatal period using the Neonatal Behavioral Assessment Scale (NBAS). At 3 months postterm, infants and their mothers were observed and videotaped in a free-play session. Both the NBAS and mother-infant interaction data were analyzed to assess the effects of maturity (term vs. preterm), illness (sick vs. healthy), and their interaction. Results revealed that illness of the infant affected both NBAS performance and maternal behavior during the interaction at 3 moths. Infants who were ill performed poorly on the NBAS orientation dimension; this dimension was found to be significantly associated with maternal and infant behaviors at 3 months. These data demonstrate an association between early infant characteristics and subsequent mother and child interactive behaviors. They also identify postnatal illness as an important influence on the development of the mother-infant dyad.  相似文献   

13.
The purpose of this observational study of the activity context in which preschool children engaged in positive social interactions was to produce a data source that could be used to assist in the identification of socially withdrawn children, and to select efficient training contexts in which to develop the social behavior repertoire of withdrawn youngsters. Eleven high-rate and 10 low-rate social interactors, ranging in age from 36 to 72 months, were observed for 12 10-minute sessions across a 3-month period. Six activity contexts were coded by trained observers: Observer, Isolate, Parallel, Game, Cooperative, and Fantasy. The results indicated that: (a) Low-rate children engaged in significantly more Isolate and Observer activity than did high-rate children. (b) High-rate children engaged in significantly more Cooperative and Fantasy activity than did low-rate children. (c) There were no significant differences between groups for Game and Parallel activities. Results are discussed in terms of the concurrent validity between frequency of interaction measures and the activity context data, the developmental progression of social skills acquisition, and the selection of treatment contexts for withdrawn children.  相似文献   

14.
Individual differences in academic success were investigated in a geographically defined whole-population sample of very preterm children with a gestational age of less than 32 weeks or a birth weight of less than 1500 gm. The sample consisted of 264 very preterm children (75.6% of German-speaking survivors) and 264 controls matched for gender, socioeconomic status, marital status and age of mother, who were studied from birth. The present analyses focused on the impact of cognitive skills assessed at ages 6 and 8 on academic success at the age 13. IQ scores, prereading skills, reading, spelling, and math performance assessed during the last kindergarten year and again at the end of Grade 2 were used as predictors of academic success in early adolescence. Differences between very pretern children and controls in cognitive abilities already observed in earlier assessments remained stable over time, with controls on average performing more than half a standard deviation above the level of preterm children. Preterm children also performed poorer on the literacy measures and indicators of math performance. Multivariate and causal modeling revealed different prediction patterns for the two groups. Whereas IQ was particularly important for the prediction of academic success in the pre-term sample, general IQ was less relevant for the prediction of academic success in the control group. When subgroups of at-risk children were formed according to birth weight categories, we found that school problems were most pronounced for children with extremely low birth weight (1000 gm and less).  相似文献   

15.
This is an exploratory study of the emotional and social functioning of young children with a manic-depressive parent. Seminaturalistic observations and experimental manipulations of the affective environment were used to assess 2-year-old children's regulation of emotion, as well as their aggression, altruism, and affiliative interactions. Children with a bipolar parent sometimes showed heightened distress and preoccupation with the conflicts and suffering of others, especially disturbances in adults. These children had difficulty in maintaining friendly social interactions, in sharing, and in helping their playmates. They also had difficulty modulating hostile impulses; they showed more maladaptive patterns of aggression toward peers and adults. These interpersonal and emotional problems of offspring of manic-depressives were often similar to those problems of manic-depressives that have been implicated in the clinical literature as possibly associated with the transmission of the disorder. This apparent congruence of findings obtained from different disciplines employing very different research strategies and studying people of different ages, attests to the utility of an explicit interdisciplinary approach in the area of developmental psychopathology.  相似文献   

16.
We investigate differences in the teacher‐learner interactions in Reception, Year 2 and Year 4 science and literacy classrooms through three measures: (i) the proportion of open questions asked by the teacher, (ii) the rate of successful responses, and (iii) wait‐times. A regression analysis of data from 20 schools and 102 lessons suggests that classrooms in socio‐economically disadvantaged areas offer distinctive patterns of interaction, i.e., typically associated with those approximately two years younger in the more affluent school districts. We then closely examine the quality of two contrasting dialogues from reception science classes of schools in poor and affluent areas. We see how teachers’ questions can work or fail to work to achieve the expected quality in scientific dialogue, and thus how effective use of open questioning might be indicative of quality. In conclusion, we discuss quality of talk as an explanation of class differences in learning outcomes of schooling.  相似文献   

17.
This investigation was designed to change teacher-student interactions in middle school social studies and science classes. Eighteen of 35 teacher volunteers received a six-session inservice emphasizing teacher effectiveness variables. Results indicated significant differences between experimental and control teachers on a pre-post contrast, as well as on a follow-up (maintenance) contrast. Differential effects on the science and social studies teachers were seen. Similarities and differences related to student type, independent of the intervention, were obtained.  相似文献   

18.
Online learning has minimized many barriers and constraints that are common in traditional learning environments. However, due to the absence of face-to-face contacts, students and instructors are usually faced with the lack of active social presence and meaningful interactions in online learning. This article explores a review of the literature on social presence and various types of interactions in online learning environments in the context of a class project. The findings suggest need for online instructors to explore effective ways to design and facilitate active social presence and meaningful interactions in online learning.  相似文献   

19.
This formative design study examines how a program curriculum and implementation was emergently (re)designed in dynamic relation to the expressed emotions of teachers and students. The context was a yearlong afterschool game design program for STEM learning at an urban and public all-girls middle school. Using Randall Collins’ (Interaction ritual chains, Princeton University Press, Princeton, 2004) sociology of emotions framework, our analysis of field notes and video data reveal how the original intended curriculum hindered the generation of positive emotions, mutual foci of attention, and feelings of group solidarity—factors important in the generation of successful group interactions. In response to teacher and student expressed emotions, we took these factors as a guide for redesigning the program curriculum and implementation in order to foster a more positive emotional climate and redirect students’ positive emotions toward engagement in learning goals. This study’s implications point to the possibilities for designing curricula and program implementations to engender more emotionally responsive environments for STEM learning.  相似文献   

20.
Using time-lapse video, we recorded the sleep/wake states of 95 preterm infants, born under 1500 g and cared for in three hospitals, for three 24-hr periods at 33 and 35 weeks conceptional age. The videotapes were scored in 5-min epochs for quiet sleep (QS); active sleep (AS); wakefulness (Wa); bout lengths of QS (QSBL), AS (ASBL), and waking (WaBL); nursing/caregiving periods (Crgv); bout lengths of Crgv (CrgvBL); and time out of the crib (OOC). The infants' sleep showed significant individual differences at each age, over age, and from day to nighttime. They showed developmental changes in QS, AS, Wa, and QSBL. QS and QSBL were positively related to caregiving time; ASBL was related to maternal age; and QS was related to gestational age and birth weight. Thus, very low birth weight preterm infants show marked stability and developmental change in the organization of the sleep/wake states from a very early age, and their states are related to demographic variables as well as temporal measures of caregiving.  相似文献   

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