Mediation in a sibling context: the relations of older siblings' mediating behaviour and younger siblings' task performance

We investigated the sibling relationship as a context for cognitive development. Forty preschoolers (ages 5–6) and their younger siblings (ages 2–3) were visited at home. Four games were presented to the older siblings and they were asked (a) to estimate how well their younger sibling will perform on each game and (b) to teach the younger sibling how to use the games. The older siblings' mediating behaviours during the teaching session and the younger siblings' performance on the four tasks were coded. The frequency of mediating behaviours—including attention focusing, amplifying affect and providing meaning, fostering a sense of competence, regulating of the learning process, de‐contextualization, and negative feedback in the form of mocking and laughing at errors, predicted the younger siblings' task performance. The older sibling's accurate perception of the younger child's competence was uniquely predictive of task performance. The highest amount of mediation was observed in older‐brother–younger‐brother pairs, in particular the behaviours of negative feedback and amplifying affect. Results contribute to the discussion on the role of siblings as moderators of cognitive development and are discussed in terms of Vygotsky's cultural–historical perspective on apprenticeship. Copyright © 2002 John Wiley & Sons, Ltd.     

Prolonged exposure therapy for chronic combat-related PTSD: a case report of five veterans

Prolonged exposure (PE) therapy has been found efficient in reducing posttraumatic stress disorder (PTSD) symptoms mostly among rape victims, but has not been explored in combat-related PTSD. Five patients with severe chronic PTSD, unresponsive to previous treatment (medication and supportive therapy) are described. Patients were evaluated with the PTSD Symptom Scale-Interview, and Beck Depression Inventory, before and after 10-15 sessions of PE therapy. All five patients showed marked improvement with PE, with a mean decrease of 48% in PTSD Symptom Scale-Interview score and 69% in Beck Depression Inventory score. Moreover, four patients maintained treatment gains or kept improving 6-18 months after the treatment. The results suggest that PE was effective in reducing combat-related chronic PTSD symptoms.     

Mediational behaviours of preschoolers teaching their younger siblings

There is very little research on the process of teaching in sibling interaction. The current study was designed to explore teaching behaviours of preschoolers and their effects on their toddler siblings. Participants were 40 dyads of 5‐yr‐olds and their 3‐yr‐old siblings from a middle class urban community in Israel. The children were divided into four equal groups based on gender and age of the siblings in each dyad. The children were visited at home and invited to play with two puzzles and two Lego games. Their play interaction with their siblings was videotaped. The observations were analysed using the observing mediational interaction (OMI) scale, assessing the frequency and style of the following behaviours: Focussing, Affecting, Encouraging, Expanding, and Regulating Behaviour. The younger siblings' success in playing the games was evaluated using a 5‐point scale. The frequency of teaching behaviours in sibling interaction was found to be related to the younger siblings' success on the games. Affecting and Encouraging were significantly related to the younger siblings' level of success on the games. The teaching behaviours of older siblings were characterized by relatively high frequencies of Regulation of Behavior and Encouraging, moderate frequencies of Affecting and low frequencies of Expanding. Boys were found to receive more teaching behaviours than girls. Older brothers and sisters showed higher frequencies of teaching behaviour in interactions with their younger brothers than with their younger sisters. Copyright © 2003 John Wiley & Sons, Ltd.     

The effects of an interactive cognitive task (ICT) in suppressing fatigue symptoms in driving

BackgroundProlonged drive on inter-urban, monotonous roads has the potential of causing a decrease in the general level of arousal leading to a state of underload and fatigue. This study examines the effectiveness of an interactive cognitive task (ICT) in delaying fatigue symptoms induced by underload conditions. The ICT is an auditory-motor task which is based on the basic principles of a knowledge game known as “Trivia”.MethodTen participants took part in two experimental sessions of 140 min drive in a fixed-base simulator. In a within-subject counterbalanced design one session consisted of driving without ICT and the other included ICT operation. In the ICT session the game was activated after 60 min of driving.ResultsWhen activated, the ICT increased physiological indicators of arousal, increased subjective feelings of alertness, and improved driving performance. The physiological and driving performance measures revealed that the ICT activation had an immediate but localized influence on arousal. Post-drive questionnaires showed that in the ICT condition, the participants’ level of motivation increased and their feelings of sleepiness decreased.ConclusionsEngaging in cognitive tasks can counteract the effects of underload and increases driving safety as long as they are active. However, additional research is necessary to determine the effects of long term use.     

A theoretical overview and empirical study of mediated learning experience: Prediction of preschool performance from mother-infant interaction patterns

This research is based on a 4-year longitudinal study of 51 normal, low SES infants and their mothers. It was conducted at the Clinical Infant Development Program sponsored by the Clinical Infant-Child Development Research Center (NIMH-HRSA). Infants' free-play sessions with their mothers were analyzed at 4, 8, 12, 24, and 36 months of age by use of an observation method based on Feuerstein's theory of Mediated Learning Experience (MLE). The participating children were tested with the Bayley Scales (to age 2 years) and the McCarthy Scales (at 36 and 48 months). Ten-minute observations of motherchild interactions, which used molar criteria of observation based on MLE theory, predicted cognitive performance at 2, 3, and 4 years of age. The observation made at 12 months was most predictive of long-term cognitive performance. Mother-infant interaction patterns were less predictive of cognitive performance in infancy than they were of performance at 2, 3, and 4 years of age. Each of the observed MLE criteria increased with age, although the frequency of some of the criteria remained low throughout the study. Stability of all MLE criteria was significant across most comparisons over time.     

Uptake of Preimplantation Genetic Diagnosis in Female BRCA1 and BRCA2 Mutation Carriers

Women with a germline pathogenic variant in the BReast CAncer susceptibility genes (BRCA1 or BRCA2) have an increased risk of early-onset breast and ovarian cancer. In addition to weighing cancer screening and risk-reduction options, healthy BRCA mutation carriers of childbearing age may choose to preclude passing the mutation to the next generation. In the current study, we report on preimplantation genetic diagnosis (PGD) practices in BRCA-positive Israeli women who were offered PGD at no cost. Methods: we measured PGD uptake, decision satisfaction or regret, and predictors of uptake. Of the 70 participant female carriers, only 25.7% chose to use PGD to prevent transmission of the mutation, and were not predicted by age or religious affiliation. For those who chose IVF/PGD, satisfaction with the decision regarding IVF and PGD was significantly higher than those who did not have IVF and PGD (p?<?0.04). Experiencing previous infertility was the only significant predictor of uptake of IVF/PGD (p?<?0.001), which may suggest that BRCA status is secondary to infertility in the decision-making process for PGD in women with a BRCA mutation.     

Enhancing mothers' interactions with toddlers who have sensory‐processing disorders

The objective of the current study was to examine the effects of a brief Mediational Intervention for Sensitizing Caregivers (the MISC‐SP) designed to enhance the quality of mothers' interaction with their toddlers who have sensory processing disorders (SPD). The basic assumption was that quality parent–child interactions can serve as a protective factor moderating the potential negative effects of toddlers' sensory processing and regulation difficulties on their development. The effects of the intervention were compared to those of another intervention designed to enhance children's sensory functioning (the SI group) and to a control group receiving no intervention. Participants were 86 toddlers (12–18 months old) with SPD and their mothers, who were randomly assigned to the aforementioned three research groups. Following the intervention period, mothers in the MISC‐SP group showed more sensitive behavior, supported their toddlers' communication behavior better, and used teaching behaviors more appropriately than did mothers in the two other groups.     

Toddlers' self-regulated compliance to mothers,caregivers, and fathers: implications for theories of socialization

To compare children's socialized behavior to parents and nonparental agents, this study examined self-regulated compliance to mothers and caregivers--an early form of internalization--in 90 toddlers, half of whom were also observed with fathers. Adults were observed in play, teaching, and discipline sessions with the child and were interviewed on child-rearing philosophies. Child cognition and emotion regulation were assessed, and naturalistic observations were conducted at child-care locations. Mean-level and rank-order stability were found in child compliance to the 3 adults. Child emotion regulation and adult warm control in a discipline situation were related to self-regulated compliance to the mother, caregiver, and father. Compliance to parents correlated with parental sensitivity and philosophies, and compliance to the caregiver correlated with child cognition and social involvement when child-care quality was controlled. Maternal sensitivity and warm control discipline predicted compliance to the caregiver but not vice versa. Results are consistent with theoretical positions on the generalization of socialization from the mother to nonmaternal agents.     

Patients’ Attitudes Towards Disclosure of Genetic Test Results to Family Members: The Impact of Patients’ Sociodemographic Background and Counseling Experience

Many factors predict the intention to disclose genetic information to relatives. The article examines the impact of patients’ socio-demographic factors on their intention to disclose genetic testing results to their relatives. Data were collected in eight genetic clinics in Israel. Patients were requested to fill in a questionnaire after counseling. A convenience sample of 564 participants who visited these clinics was collected for a response rate of 85 %. Of them, 282 participants came for susceptibility testing for hereditary cancers (cancer group), and 282 for genetic screening tests (prenatal group). In the cancer group, being secular and having more years of education correlated positively with the intention to disclose test results to relatives. In the prenatal group, being married and female correlated positively with the intention to disclose. In the cancer group, being religious and with less years of education correlated positively with the view that the clinician should deliver the results to the family. In the prenatal group, being male and unmarried correlated positively with this belief. In both groups, being of young age correlated with the perception that genetic information is private. Varied sociodemographic factors affect the intention to inform family members. Thus, knowing the social background of patients will shed light on people’s attitudes to genetic information and will help clinicians provide effective counseling in discussions with patients about the implications of test results for relatives.