Israeli kindergarten children's gender constancy for others' counter‐stereotypic toy play and appearance: the role of sibling gender and relative age

To test divergent theoretical predictions as to the impact of having a younger or older, same‐sex sibling or opposite‐sex sibling on other gender constancy, Israeli kindergarten children in two‐child families responded to a gender constancy task in which a male and female picture target engaged in counter‐stereotypic toy play and adopted counter‐stereotypic appearance. Children were also asked whether the target child could change sex at will and to explain the difference between boys and girls. Relative age of sibling, both independently and in interaction with participant sex, was associated with greater gender constancy in the face of counter‐stereotypic toy play. Relative age of sibling and sibling sex was independently associated with greater gender constancy in the face of counter‐stereotypic appearance. In both cases, children with a younger sibling evidenced greater gender constancy. Boys, especially ones with a male sibling, referred most explicitly to target's birth sex in accounting for his or her being unable to change sex at will. Genital and anatomical differences between boys and girls were cited more often by children who referred explicitly to target's birth sex and had a younger sibling. The results were discussed in the context of theories of gender development and the socialization of gender within the family. Copyright © 2008 John Wiley & Sons, Ltd.     

不同性别比和资源获取能力对未婚男性择偶标准的影响

本研究分别采用文字启动和图片启动两种方式,探讨不同性别比下男性择偶标准的动态变化。实验1和实验2的结果均显示:相比于男多女少启动,在女多男少启动下,男性对女性"好资源"的要求会明显升高。不同性别比启动和男性资源获取能力(而不是童年经济状况)在男性择偶标准上存在着交互效应。相比于男多女少启动,资源获取能力强的男性在女多男少启动下对女性好资源的要求会明显提高,而资源获取能力弱的男性在两种启动下对女性好资源的要求没有显著变化。结论:对资源获取能力强的男性而言,对女性"好资源"的偏好是择偶选择过多时所产生的奢侈需求。     

Real‐World Correlates of Performance on Heuristics and Biases Tasks in a Community Sample

In the current study, we sought to examine whether performance on several heuristics and biases tasks and thinking dispositions was associated with real‐life correlates in a community sample of adults. We examined performance on five heuristics and biases tasks (ratio bias, belief bias in syllogistic reasoning, cognitive reflection, probabilistic and statistical reasoning, and rational temporal discounting), three thinking dispositions (actively open‐minded thinking, future orientation, and avoidance of superstitious thinking), and a questionnaire assessing real‐world correlates in several domains (substance use, driving behavior, financial behavior, gambling behavior, electronic media use, and secure computing). Our heuristics and biases tasks and thinking disposition measures were modestly associated with several real‐world outcomes, including the domains of secure computing, financial behaviors, and the total scores. That is, better performance on the heuristics and biases measures was associated with fewer negative outcomes. We found that the associations were generally higher in males than in females. Heuristics and biases performance and thinking dispositions were unique predictors of real‐world outcomes after statistically controlling for educational attainment and sex differences. Copyright © 2016 John Wiley & Sons, Ltd.     

Observer Influences on Fathers and Mothers: An Experimental Manipulation of the Structure and Function of Parent – Infant Conversation

From studies over the past 20 years four contrasting hypotheses can be made about the nature of parent–infant communication: (1) mothers and fathers display similar skills to their infants and do not exert a differential influence on their development; (2) fathers are less sympathetic to their infants' level of development and therefore inadvertently stretch the child's development more than mothers; (3) both parents differentially socialize their sons' and daughters' early communicative skills; (4) any apparent differences between parents reflect their expectations about being observed. To examine these hypotheses together, this experiment records the communication of 10 mother–infant and 10 father–infant dyads in two conditions: when an observer was present or absent. The analysis revealed two patterns. Firstly, in keeping with most research on parent–child communication, mothers and fathers both simplified their speech to their infants in similar ways. Secondly, both the structure and function of parental communication showed differences between the two conditions and many of these differences were moderated by interactions between condition and sex of parent or child. The data thus provide more support for the first and fourth hypotheses cited above. It is suggested that analyses of parent–infant interaction should move away from simple assumptions about parental ‘influences’ upon children's development to consider the subtleties of different parental styles in different settings.     

Empathy as a cognitive inhibitor of interpersonal aggression

The studies presented in this paper examined empathy, especially perspective taking, as a potential inhibitor of interpersonal aggression. The theoretical rationale for these investigations derived from Zillmann's [(1988): Aggressive Behavior 14: 51–64] cognitive excitation model. Study 1 revealed that dispositional empathy correlates negatively with self-reported aggression and with conflict responses that reflect little concern for the needs of the other party. Empathy also was positively related to constructive responses to interpersonal conflict (i. e., those that do involve concern for the needs of the other party). In Study 2, perspective taking was manipulated with instructions to subjects prior to participation in a reaction-time task designed to measure aggression. When threat was relatively low, subjects who were instructed to take the perspective of the target responded less aggressively than did those who had been instructed to focus on the task. Study 3 examined the effect of dispositional perspective taking on verbal aggression. Threat was manipulated in terms of the combination of provocation and gender of the interactants. As predicted, perspective taking related to aggression inhibition under conditions of moderate threat–for males under low provocation and females under high provocation. These effects were predicted and explained in the context of the cognitive-excitation model. © 1994 Wiley-Liss, Inc.     

Parental influence on children's self-estimated agressiveness

Parental influence on children's self-estimated aggressivences was measured with inventories. One hundred seventy-four adolescents (85 girls and 89 boys; mean age 13.6 years, SD 0.7) from a suburban school, known as prone to problems of aggression, served as subjects. The dependent variable aggresive personality was measured with the Buss-Durkee Hostility Inventory [J consult Psychol 21:343, 1974]. Parental influence was measured with scales specifically developed for the present research. the subjects estimated: 1) their emotional relation to each parent; and 2) their perception of how their parents a and b) behave when angry c) at home and d) with their peers. The results revealed clearly gender-specific efects: mothers and fathers affected sons and daughters differently. According to LISREL analyse, mother had a clearly stronger impact on sons, while fathers had a slightly stronger effect on daughters. In the case of fathers, hiting and alcohol abuse were, in addition to a negative emotional relationship, strong predictors of daughter's aggresivencess. However, aggressive fathers tended in general to get a counterreaction with their sons, leading to low aggressiveness with the same type of behavior in their case. Typical maternal predictors of children's aggressivencess were shouting and a negative emotional relationship. In the case of daughters, the former was a more important predictor than the latter, but in the case of sons, it was the other way around. Modeling effects were revealed: subjects imitated their parents' styles of behavior in anger, however, with different patterns at home and with peers. The results may be interpreted as support for both the cognitive learning and the frustration-aggression hypotheses as sources for aggressive behavior. © 1992 Wiley-Liss, Inc.     

Sex and post-menopause hormone therapy effects on hippocampal volume and verbal memory

Many studies suggest sex differences in memory and hippocampal size, and that hormone therapy (HT) may positively affect these measures in women; however, the parameters of HT use that most likely confer benefits are debated. We evaluated the impact of sex and postmenopausal HT use on verbal learning and memory and hippocampal size in 94 cognitively intact women and 49 men. Using analysis of covariance that controlled for age and education, women had better total word learning and delayed verbal memory performance than men. HT analyses showed that non-HT users performed similarly to men, while HT users performed better than men in Delayed Memory regardless of whether use was current or in the past. Women had larger hippocampal volumes than men regardless of whether they were HT users. Using univariate linear models, we assessed group differences in the predictive value of hippocampal volumes for verbal learning and memory. Hippocampal size significantly predicted memory performance for men and non-HT users, but not for HT users. This lack of relationship between hippocampal size and verbal learning and memory performance in HT users suggests HT use may impact memory through extra-hippocampal neural systems.     

Preferences for ‘Gender‐typed’ Toys in Boys and Girls Aged 9 to 32 Months

Many studies have found that a majority of boys and girls prefer to play with toys that are typed to their own gender but there is still uncertainty about the age at which such sex differences first appear, and under what conditions. Applying a standardized research protocol and using a selection of gender‐typed toys, we observed the toy preferences of boys and girls engaged in independent play in UK nurseries, without the presence of a parent. The 101 boys and girls fell into three age groups: 9 to 17 months, when infants can first demonstrate toy preferences in independent play (N = 40); 18 to 23 months, when critical advances in gender knowledge occur (N = 29); and 24 to 32 months, when knowledge becomes further established (N = 32). Stereotypical toy preferences were found for boys and girls in each of the age groups, demonstrating that sex differences in toy preference appear early in development. Both boys and girls showed a trend for an increasing preference with age for toys stereotyped for boys. Theoretical implications of the findings are discussed with regard to biological predispositions, cognitive development and environmental influences on toy preference. Copyright © 2016 John Wiley & Sons, Ltd.     

An evaluation of sex and cultural differences in arithmetic retrieval-induced forgetting

Retrieval practice of arithmetic facts (e.g. 2?×?3) can interfere with retrieval of other, closely related arithmetic facts (e.g. 2?+?3), increasing response time (RT) and errors for these problems. Here we examined potential sex and culture-related differences in arithmetic retrieval-induced forgetting (RIF). This was motivated by re-analyses of several published arithmetic RIF data sets that appeared to show that the effect occurred for women but not men. Experiment 1 (n?=?72) tested for possible sex differences in a diverse but predominantly Canadian university sample. Experiment 2 (n?=?48) examined potential sex differences in native Chinese participants, which previous research indicated may not be susceptible to the RIF effect for a particular subset of small addition problems (sum?≤?10). In Experiment 1, we found no evidence that the addition RIF effect differed between male and female adults. In Experiment 2, the Chinese adults showed RIF for tie problems (e.g. 2?+?2, 3?+?3, etc.) regardless of sex, but neither sex presented RIF for small non-tie addition problems. The results indicated that the RIF effect is not gender specific, and there might not be strong memory retrieval competition between addition and multiplication facts for non-tie problems in Chinese adults.     

Évolutions législatives et enjeux éthiques liés à la prise en charge des enfants ayant un trouble de la différenciation sexuelle (DSD)

The ethical dilemma concerning the care of children with a disorder of sex development opposes patients who have benefited from undeniable medical and surgical advances over the past 30 years and patients who have suffered from initial carek, experienced as “torture” or “genital mutilation”. The latter, grouped into advocacy organization (including the International Intersex Organization), recommend that genital operation of children must be avoided until they can give their prior consent, in the name of the fundamental right to self-determination and physical integrity. This “free choice” left to the child would not take into account the opinion of the parents or that of the medical team, nor any psychological, social and societal consequences, nor the risks of late surgery. Recent legislative developments are exposed. The interest of legislating on these delicate situations affecting the most intimate is questioned, especially as they are of great complexity because of the heterogeneity of genetic causes and family situations. Medico-surgical Societies, in connection with patient associations denounce this media hold by “Intersex” activists, who are not representative of the patients having been managed more recently. They advocate to continue to understand these situations on a case-by-case basis, leaving the choice to the parents to allow the child to grow up in a gendered body.