Social transmission of courtship behavior and mating preferences in brown-headed cowbirds,<Emphasis Type="Italic">Molothrus ater</Emphasis>

Studies of the social learning of courtship behaviors and mating preferences of brown-headed cowbirds (Molothrus ater) are reviewed. Earlier work has suggested that cowbirds from behaviorally distinct populations mate preferentially with others from the same population. Studies are described which indicate that patterns of courtship behavior that differ by population can be socially transmitted across generations are described. Social background affects male songs, female preferences for males as mates, and courtship interactions between females and males. Thus, social traditions influence mating decisions and may, ultimately, impact reproductive success in this species. Recent work on possible social mechanisms involved in the ontogeny of courtship behavior is described. The implications of these findings are discussed, and future research directions are suggested.     

Different but similar: computer use patterns between young Korean males and females

This study was developed to identify and describe new trends and gender differences in the use of computers and the Internet in South Korea. In this mixed-method study, both quantitative and qualitative techniques were used. Results indicated that both males and females used computers generally for four purposes: social networking, personal knowledge, formal learning, and entertainment. The study also found differences in preference between the sexes: Males liked playing multi-user online games, especially in internet cafés with friends, while females enjoyed social networking websites more. Although the patterns of computer use between males and females were ostensibly different, all participants used computers for fun and socializing. Therefore, more emphasis should be placed on understanding various uses and the implications of emerging differences. Also, consideration should be given to building learning environments that appeal to the computer preferences for both genders.     

Play soliciting behavior in prepubertal and postpubertal male rats

Pre- and postpubertal play soliciting behavior was observed in intact males, castrate males, sham-operated males, and female controls. Although play soliciting decreased markedly with age in all groups, male treatment groups did not differ reliably on pre- or postpubertal tests. Males, however, engaged in reliably greater play soliciting than females on all measures in both preand postpubertal tests. These results suggest that the major decrease in social play associated with the attainment of sexual maturity is apparent in the play soliciting behavior of both sexes and may be attributed to maturation effects other than that associated with gonadal hormones. The results are discussed in reference to organizational and activational effects of male gonadal hormones on measures of social play behavior.     

当代上海知识青年择偶观的心理学分析

对476名上海知识青年回答的择偶问卷进行了数据分析,结果表明:男女的择偶观念都表现出了明显的理性趋势,都将对方的个性因素排在择偶标准的前列,不过,男性重外貌、女性重社会经济资源的性别差异仍清晰存在;与大龄未婚青年(≥28岁)相比,年龄较小的未婚青年在配偶的选择上,更为重视双方个性上的相容性,以及对方的经济基础;独生子女在择偶过程中更为重视对方的物质经济基础,非独生子女则更为重视对方的持家能力。     

Influences of social isolation during development on sexual behavior of the rat

Male and female rats were weaned at 14 days of age and raised in social isolation or with three other animals. At maturity the male isolates displayed less male sexual behavior than the socially reared Ss. Female isolates, after ovariectomy and injection with androgen, exhibited much less male sexual behavior than control females similarly tested. After being brought into estrus by injections of estrogen and progesterone, the female sexual behavior of female social and isolate Ss did not differ. Data were interpreted as indicating that social isolation during development deprives rats of critical experiences necessary for development of appropriate responses to social stimuli eliciting male copulatory behavior in both sexes.     

Attraction to mobile and immobile conspecifics

Male and female laboratory rats invariably investigate a novel conspecific placed in their home cages. In Experiment 1, mature male rats were exposed in their home cages to active and inactive juvenile males. Inactive juveniles were pretreated with haloperidol to induce behavioral stasis in a normally upright, quadrupedal stance. In repeated daily observations, males exposed to active juveniles displayed significantly longer intervals of investigation than did males exposed to inactive juveniles. In Experiment 2, mature males and females were repeatedly exposed to active and inactive castrate females. Males investigated significantly longer than did females, active female castrates were investigated significantly longer than were inactive female castrates, and sex of subject interacted significantly with activity-nonactivity of the social stimulus animal. In Experiment 3, mature males and females were repeatedly exposed to active and inactive castrate males. Males investigated significantly longer than did females, active male castrates were investigated significantly longer than were inactive male castrates, and sex of subject interacted significantly with activity-nonactivity of the social stimulus animal. The results demonstrate that sexual dimorphism in persistence of social investigation may be interpreted as a sex difference in response to normal movement cues of a stimulus complex characterizing a conspecific.     

Urine as a communicator in a New World primate,Saimiri sciureus

New World primates face problems of communication distinct from those of their Old World counterparts. We suspected that the odor of urine might serve the function of communicating information among animals or troops. Two studies were conducted withSaimiri sciureus; one examined, in a laboratory enclosure, the influence of breeding season, social condition, area, and whether the urine was from known animals or from strangers, and the second measured, in a seminatural rain forest, responses to our spreadingSaimiri urine on selected sites. Enclosure and field produce the same general patterns of frequencies of behavior for urination, the urine wash and kick wash, and rubbing. The chief difference in behavior between the environments is found in the frequency of sneezing. Season (breeding or nonbreeding) is the most effective variable producing this general pattern: During the breeding season, males urine-wash throughout the enclosure or troop range, whereas during the nonbreeding season, this behavior is restricted in location, at least in the enclosure. At this time, females increase their frequencies of sniffing and rubbing. Many of these behaviors are observed only in special locations of the enclosure. The results show thatSaimiri respond differently to the urine of known and foreign animals, depending upon the season and whether they are with members of their own sex or both sexes. It is suggested that primates not equipped with specialized organs for scent marking may use urine opportunistically to communicate.     

Blocking of the sexual conditioning of differentially effective conditioned stimulus objects

The blocking phenomenon was investigated in the sexual response system of male Japanese quail. Access to a live female quail served as the unconditioned stimulus (US). The same audiovisual cue served as the pretrained stimulus in all of the experiments. Following asymptotic conditioning of the audiovisual cue, a second conditioned stimulus (CS2) was added. In Experiment 1, CS2 was a rectangular wood block that had little or no resemblance to a female quail and could not support copulatory behavior. In Experiment 2, CS2 was a terrycloth object that had no quail parts but could support copulatory behavior, and, in Experiment 3, CS2 was a terrycloth object that had a taxidermically prepared head of a female quail added. The terrycloth-only object supported more rapid conditioning than did the wood block, but the blocking effect was obtained with both kinds of stimuli. Approach responding to the terrycloth + head object required pairing it with copulatory opportunity, and the terrycloth + head object supported at least as rapid conditioning as did the terrycloth-only object. However, responding to the terrycloth + head object was not blocked by the pretrained audiovisual cue. These results indicate that the blocking effect occurs in sexual conditioning even with stimulus objects that can support copulation. However, the addition of species-typical head cues to an object makes that object such a powerful stimulus that conditioned approach responding to it cannot be blocked by a previously conditioned arbitrary audiovisual cue.     

Out in school: talking about sexual orientation and challenging homophobia across the Key Stage 4 curriculum

Rates of sexually transmitted infections and teenage pregnancy amongst the under-16s are causing increasing concern. There is limited evidence about the sexual behaviour and sex education preferences of this age group, especially of those from Black and minority ethnic groups. This study aimed to provide data on early heterosexual risk behaviour, and to examine preferences for the content and delivery of sex and relationships education (SRE), across ethnicity, gender and school year to inform priority setting and sex education strategies. A cross-sectional study of 3334 13–17-year-olds from 10 English urban and suburban secondary schools was conducted. Multivariate analysis was performed to examine the independent effect of demographic variables on sexual experience and preferences for sex education. A number of important differences in the sexual experience and condom use of males and females across the ethnic groups were identified. Differences in preferences for the content and delivery of sex education were also identified, particularly between male and female pupils. The findings indicate the potential for quite wide variation in sexual experience and preferences within school classrooms. The challenge for educators is therefore to develop SRE curricula that are inclusive within the constraints of school teaching.     

决策树技术在移动学习性别差异研究中的应用

基于对近千名高等教育移动学习者进行大规模调查所收集到的数据,研究者使用C5.0算法分别生成男女生群体关于课件使用满意度的决策树,然后比较从中提取的不满意规则进行性别差异研究。实验结果表明:在移动学习中,女生对学习资料有更高的要求,女生对学习资料要求的个体差异高于男生,女生使用课件时更容易受外界因素干扰。     

Preferences for Various Learning Environments: Teachers' and Parents' Perceptions

In the last ten years, a number of innovations, mainly inspired by constructivist notions of learning, have been introduced at various levels of the Dutch educational system. However, constructivist learning environments are rarely implemented. Teachers tend to stick to expository and structured learning environments. This consistent finding requires research in order to gain insight into teachers' preferences for learning environments and to determine the factors that support and impede the realization of these learning environments. Regarding the influence of social backgrounds on student learning, is it also important to take stock of parental views on learning environments.This study is focused on teachers' preferences for learning environments, their reported teaching behavior, and how these match with parents' preferences. Three parallel questionnaires were developed for teachers (n = 285), students (n = 951), and parents (n = 636) to measure preferences and behavior at different levels of education, for three types of learning environments: direct instruction; discovery learning; and authentic pedagogy. The results show that teachers often prefer direct instruction, and seldom promote discovery learning. While teachers sometimes realize authentic pedagogy, constructive learning tasks are seldom used. Teachers' reported practice and parents' preferences for their children appear to correspond reasonably.Results of multiple regression analyses show that the use of the three types of learning environments yield different predictors. For the use of discovery learning and authentic pedagogy, confidence in students' regulative skills is an important predictor. In predicting the use of direct instruction, the teacher's own conception of learning turns out to be an important predictor.     

ARE STUDENTS' LEARNING STYLES DISCIPLINE SPECIFIC?

In the study reported in this article, we examine the extent to which community college students' learning style preferences vary as a function of discipline. We were interested in knowing whether gender and academic performance play a role in student learning style preferences. The learning style preferences of 105 community college students (47 males and 58 females) were measured in four disciplines (i.e., English, mathematics, science, and social studies) using a modified version of the Kolb Learning Style Inventory IIa (Kolb, 1995), which was aimed at determining learning mode orientations: concrete experience, reflective observation, abstract conceptualization, and active experimentation. The results revealed significant differences in students' learning styles preferences across disciplines, but not for gender. In addition, student learning style preferences varied by academic performance as measured by GPA. These findings have important implications for community college teaching and research.     

Sign tracking in domesticated quail with one trial a day: Generality across CS and US parameters

When the conditioned stimulus (CS) is located some distance from the unconditioned stimulus (US), pairings of the CS and US can yield either conditioned approach to the CS (sign tracking) or conditioned approach to the US (goal tracking). However, goal tracking is the more common outcome, and, because of that, goal tracking has come to serve as a “standard” measure of associative learning in several laboratories. In contrast, in previous studies of sexual conditioning with domesticated quail, only sign tracking was observed. In the present study, quail continued to show sign tracking rather than goal tracking whether or not the US was highly localized (Experiment 1), whether food or a sexual US was used (Experiment 2), whether the CS was mobile or immobile (Experiment 3), and whether the CS was 91 or 233 cm from the US compartment (Experiment 4). The present findings encourage caution in the routine use of goal tracking as a measure of learning. The possible mechanisms of goal tracking are discussed in terms of occasion setting and behavior systems theory.     

高职院校非英语专业学生英语学习归因偏好调查研究——以武汉职业技术学院为例

以学者伯纳德·韦纳(Bernard Weiner)在其归因理论中提出的"三个维度与六因素归因模型"为理论依据设计问卷,对武汉职业技术学院非英语专业1500名学生进行问卷调查和访谈,旨在从学生的角度了解英语学习的归因偏好,以及性别差异对归因偏好的影响。调查结果显示女生和男生的归因偏好基本是正确和合理的,倾向于一致,且他们在归因上的性别差异不显著,并发现努力、学习环境、兴趣和自信等因素是影响学生英语学习的最重要的几大因素。     

Social transmission of food preferences among norway rats by marking of food sites and by gustatory contact

Three experiments were conducted to investigate the social learning and transmission of food preferences by excretory marking among adult male Norway rats. The experiments extend our earlier findings that rats prefer to eat from a food bowl marked by the excretory deposits of conspecifics and that this mechanism can result in the communication and social learning of food preferences (Laland & Plotkin, 1991). Here we investigate whether a tradition of food and food site preferences can become established by these means. Experiment 1 established that the residual cues deposited by rats lose their powers of communication as “markers” of food sites over a 72-h period. Experiment 2 showed that while a socially enhanced preference for one flavored diet could be transmitted from one animal to the next along a chain, it was unstable for an alternative diet. This suggests that social transmission may be more stable when it reinforces a prior preference than when it conflicts with one. In Experiment 3, the stability of socially transmitted food preferences was bolstered by the addition of a second process for the communication of diet preferences-namely, gustatory cues on the demonstrator’s breath. This finding suggests that when a socially transmitted trait is mediated by more than one process, the processes may interact, and the diffusion is likely to be more stable.     

Play-solicitation behavior in juvenile male and female rats

Play-solicitation and social investigatory behaviors were observed in male and female juvenile rats exposed to playful and nonplayful juvenile social stimuli. A nonplayful state was induced by treatment with scopolamine HBr. In Experiment 1, the play-solicitation behavior of males exposed to nonplayful stimuli was reliably greater than that of females; social investigation did not differ by gender. In Experiment 2, males and females were exposed to nonplayful male and female stimuli. Male subjects engaged in more soliciting than did female subjects, and male social stimuli were subjected to more soliciting than were female social stimuli. Experiment 3 compared the influence of varying social deprivation intervals on play soliciting by male juveniles. Although social investigation did not vary reliably with interval of social deprivation, play soliciting increased reliably with longer intervals of isolation. In Experiment 4, play-soliciting behavior of males exposed to nonplayful males correlated positively and reliably with play fighting behavior upon exposure to normally playful males. The results support the proposal that some specific behaviors functionally provoke interactive play fighting.     

The effects of sex,structure and social interaction on preschoolers' play behaviors in a naturalistic setting

Play behavior of preschool children was observed in their natural environment. The study focused on the general demographic of free-play behavior, sex differences in the uses of various play areas, the effect of different play areas on the incidence of make-believe versus exploratory play, and the differential influence of play area on social interaction. Results indicated that both boys and girls used areas that have been thought of traditionally as sextyped. For example, both sexes appeared with equal frequencies in the household area and the block and truck area. Within these areas the sexes apportioned their time equally in terms of play activities. Overall, the household area elicited more make-believe play and social interaction than did the other play areas.     

The effectiveness of using computer simulated experiments on junior high students' understanding of the volume displacement concept

Several researchers have suggested that the computer holds much promise as a tool for science teachers for use in their classrooms (Bork, 1979, Lunetta & Hofstein, 1981). It also has been said that there needs to be more research in determining the effectiveness of computer software (Tinker, 1983). This study compared the effectiveness of microcomputer simulated experiences with that of parallel instruction involving hands-on laboratory experiences for teaching the concept of volume displacement to junior high school students. This study also assessed the differential effect on students' understanding of the volume displacement concept using sex of the students as another independent variable. In addition, it compared the degree of retention, after 45 days, of both treatment groups. It was found that computer simulated experiences were as effective as hands-on laboratory experiences, and that males, having had hands-on laboratory experiences, performed better on the posttest than females having had the hands-on laboratory experiences. There were no significant differences in performance when comparing males with females using the computer simulation in the learning of the displacement concept. This study also showed that there were no significant differences in the retention levels when the retention scores of the computer simulation groups were compared to those that had the hands-on laboratory experiences. However, an ANOVA of the retention test scores revealed that males in both treatment conditions retained knowledge of volume displacement better than females.     

Diversity at Work: Do Men and Women Differ in their Organizational Citizenship Behavior?

ABSTRACT : In this paper, we use social role theory to develop hypotheses predicting differences in the organizational citizenship behavior of males and females at work. Results, based on questionnaire responses of 257 restaurant workers and their supervisors, demonstrate that females in our service-worker sample engaged in more altruism, loyalty, and obedience than males, but that males and females did not differ in their advocacy participation. Results also demonstrate that organizational tenure moderated the relationship between sex and two forms of citizenship behavior: altruism and advocacy participation. We discuss the implications of our findings and conclude with suggestions for future research.