“May I present you: my disgust!” – Declared disgust sensitivity in the presence of attractive models

Disgust sensitivity differs among men and women, and this phenomenon has been observed across numerous cultures. It remains unknown why such sex differences occur, but one of the reasons may relate to differences in self-presentation. We tested that hypothesis in an experiment comprising 299 participants (49% women) randomly allocated into three groups. Each group completed the Three Domains Disgust Scale (TDDS) and rated how disgusting they found olfactory, visual, gustatory, and tactile disgust elicitors either when a male experimenter was present, a female experimenter was present, or no experimenter was present. We hypothesised that male participants in the female experimenter group would declare decreased levels of disgust sensitivity, and female participants in the male experimenter group would declare increased levels of disgust sensitivity. Results showed that despite sex differences in pathogen and sexual disgust, attractive experimenters did not evoke any differences in declared disgust across groups with one exception–both men and women self-presented as more sensitive to sexual disgust in the presence of the female experimenter. We discuss our findings in the light of evolutionary and social theories.     

Sex differences in the association of math achievement with visual-spatial and verbal working memory: Does the type of math test matter?

Previous research on sex differences in mathematical achievement shows mixed findings, which have been argued to depend on types of math tests used and the type of solution strategies (i.e., verbal versus visual-spatial) these tests evoke. The current study evaluated sex differences in (a) performance (development) on two types of math tests in primary schools and (b) the predictive value of verbal and visual-spatial working memory on math achievement. Children (N = 3175) from grades 2 through five participated. Visual-spatial and verbal working memory were assessed using online computerized tasks. Math performance was assessed five times during two school years using a speeded arithmetic test (math fluency) and a word problem test (math problem solving). Results from Multilevel Multigroup Latent Growth Modeling, showed that sex differences in level and growth of math performance were mixed and very small. Sex differences in the predictive value of verbal and visual-spatial working memory for math performance suggested that boys seemed to rely more on verbal strategies than girls. Explanations focus on cognitive and emotional factors and how these may interact to possibly amplify sex differences as children grow older.     

Social Determinants of Attitudes towards Women’s Premarital Sexuality among Female Turkish University Students

This paper explores the effects of demographic and attitudinal variables on attitudes toward women’s premarital sexuality in a sample of 277 undergraduate female students at Istanbul University, Turkey. The results of the research demonstrated that sexual attitudes best predicted the dependent variable in regression analysis. Once the variable sexual attitudes was excluded from the equation, mother’s education and personal religiosity were the best predictors of attitudes toward women’s premarital sexuality. For a more extensive version of this study, see     

对恶性肿瘤性别差异的再认识

恶性肿瘤性别差异表现在发病率、预后、治疗等多方面。生理结构、生活方式、工作、性格等流行病学因素是造成恶性肿瘤性别差异的外因,性激素及其受体研究在一定程度上解释了性别差异的本质,且为恶性肿瘤的内分泌治疗提供了理论依据。随着分子生物学技术发展,基因多态、分子突变等深入研究成果揭示更深层次的原因。     

双性化大学生人格特征研究

通过对北京市某所大学826名大学生的调查,探讨性别、性别角色类型和新性别角色类型对大学生人格特征的影响。结果表明：1）双性化性别角色类型大学生约占1／4;2）用贝姆的分类方法,双性化大学生在开放性、宜人性、责任感、和谐性、人情、灵活性人格特征上均高于其他性别角色类型的大学生,可见,双性化性别角色大学生具有较积极的人格特征。按照Brenda Mae Woodhill和CurtisA．Samuels的分类方法,在外向性、开放性、宜人性、责任感、和谐性人格特征上,正性双性化性别角色类型的大学生均高于负性双性化大学生和其他性别角色类型的大学生。     

Unsavory Seduction

Among human beings, sexual pursuit takes many forms. Some forms, like courtship, are morally innocuous. Other forms, like rape, are categorically immoral. Still other forms are provisionally immoral. Such forms of sexual pursuit involve a wrongful element sufficient to render them wrongful on balance provided that this wrongful element is not counterbalanced by even more important competing moral considerations. Here my focus is a particular form of provisionally immoral sexual pursuit, unsavory sexual seduction, or unsavory seduction for short.

对我国性别刻板印象的分析

心理学在当代中国迅速发展,其中对性别刻板印象的研究也十分全面。本文探讨了性别刻板印象的表现,分析了影响其产生的因素,并进一步介绍了减弱性别刻板印象的对策。     

Ontogeny of sex differences in defensive burying behavior in rats: effect of social isolation

The aim of the present experiments was to clarify sex differences in socio-developmental factors that affected defense behavior in rats. Sex differences in the defensive burying behavior of rats, and related social factors, were explored in three developmental stages: juvenile, puberty, and adult; 30, 50, and 80 days of age, respectively. The duration of burying, digging into bedding material, stretch-attend postures, and crouch/freezing were measured in a shock-prod test. For males, the duration of burying was longer in the juvenile and pubertal stages than in adulthood. For females, no age differences in the duration of burying were found. Males showed longer burying durations than females in both the juvenile and pubertal stages. For both sexes, the highest duration of digging was found in the juvenile stage, and females showed longer durations of digging than males. Both male and female rats isolated during the juvenile stage, from 26 to 40 days of age, showed smaller durations of burying behavior compared to pair-reared rats. This effect of juvenile isolation was maintained among both adult males and females even when they were returned to pair rearing after isolation. Isolation during adulthood, from 66 to 80 days of age, increased burying behavior in males, but decreased it in females. The durations of digging, stretch-attend postures, and crouch/freezing were not affected by isolation. The decrease in defensive burying and its increase resulting from isolation in adult male rats, suggest that the emergence of adult-like social relationships in males suppressed the duration of burying. Male and female rats isolated during the juvenile stage maintained lower levels of burying, suggesting that social experience as juveniles is important for the emergence of defensive burying behavior.     

Trajectories and predictors of indirect aggression: results from a nationally representative longitudinal study of Canadian children aged 2-10

The purposes of this study were to model the development of indirect aggression among a nationally representative sample of 1,401 Canadian children aged 4 at T2, 6 at T3, 8 at T4 and 10 at T5, and to examine predictors of trajectory group membership from T1 (age 2) child, familial, and parenting variables. Using a semi-parametric group-based modeling approach, two distinct trajectories were identified: "increasing users" comprising of 35% of the sample and "stable low users" comprising of 65% of the sample. Using logistic regression analyses to distinguish these two groups, we found that for girls, more frequent, increasing use of indirect aggression was associated with prior prosocial and physically aggressive behavior, low SES and low parental social support at age 2. For boys, increasing use of indirect aggression was associated with prior parenting issues at age 2-inconsistency and less positive parent-child interactions. Although this study provides unique information regarding the early development of indirect aggression and its predictors, more longitudinal research is needed to fully understand its development.     

Cognitive Biases and Emotional Wisdom in the Evolution of Conflict Between the Sexes

Two recent theories within evolutionary psychology have produced novel insights into conflict between the sexes. According to error management theory (EMT), asymmetries over evolutionary time in the cost-benefit consequences of specific social inferences have produced predictable cognitive biases. Women, for example, appear to underinfer commitment in response to signals of resource display. Men often overinfer a woman's sexual desire when she merely smiles at or casually touches them. These inferential biases, according to EMT, represent functional adaptations rather than markers of irrationality in information processing. According to strategic interference theory , certain "negative emotions" function to motivate action to reduce conflict produced by impediments to preferred social strategies. Emotions such as jealousy and anger, rather than reducing rationality, may embody inherited ancestral wisdom functional in dealing with interference inflicted by other individuals. These evolution-based theories have produced novel empirical discoveries and challenge traditional theories anchored in the premise that cognitive biases and negative emotions necessarily lead to irrationality.