排序方式: 共有47条查询结果,搜索用时 578 毫秒
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Jeffrey A. Seybert Mary Z. Mays Ray L. Littlejohn Roger L. Mellgren Nabil F. Haddad 《Quarterly journal of experimental psychology (2006)》1978,30(1):121-132
Two experiments compared the effects of reinforced, partially reinforced and nonreinforced intertrial goal box placements (ITR, ITP, and ITN respectively) on runway performance. In Experiment I differential responding (animals running slower on nonreinforced (N) trials than on reinforced (R) trials) was observed during acquisition for subjects receiving ITP preceding N trials or subjects receiving ITP before R trials, and also for subjects receiving ITR preceding N trials. No differential responding was observed in subjects receiving ITP prior to both N and R trials or ITN prior to N trials. In extinction, the subjects which had responded differentially during acquisition demonstrated reduced resistance to extinction in comparison to the subjects which had not. In Experiment II, a 2 × 2 factorial design was utilized with placement schedule (ITN and ITP) and type of trial predicted by placement (N and R) serving as the factors. Differential responding was observed in all four groups. The apparent contradiction between the results and the discrimination hypothesis proposed by Capaldi and Olivier (1967) to explain the attenuation of ITR and ITN effects on resistance to extinction is discussed. 相似文献
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Women and AIDS-related concerns. Roles for psychologists in helping the worried well 总被引:1,自引:0,他引:1
Acquired Immunodeficiency Syndrome (AIDS) has important implications for the practice of psychology. As the epidemic continues, the role of behavior change and psychosocial factors in the spread and transmission of Human Immunodeficiency Virus (HIV) infections assumes increasing significance. Psychologists, as behavior change experts, have a special and challenging role to play in educating the public, particularly women, about AIDS. This article examines AIDS- and HIV-related concerns in women with a focus on the personal dilemmas for the practicing psychologist, problems in health behavior advocacy, and methods and pitfalls in modifying sexual behaviors. 相似文献
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医疗纠纷处理中若干伦理问题的思考 总被引:9,自引:0,他引:9
达庆东 《医学与哲学(人文社会医学版)》1999,20(11):12-15
医疗纠纷的增势和处理难已成为众所周知的事实。但是,在医疗纠纷处理中存在着医患关系的信任性、医疗事故鉴定的公正性和经济裣的合理笥是思考的伦理问题。只要医患双方、乃至社会对诸如医疗行为是否等同于一般的服务行为、病人权益是否等同于消费者权益、医疗事故鉴定是不是医医相护、经济裣能不能实行等价赔偿原则、医疗差错要不要给予经济补偿等有效为统一的认识,就会有利于医疗纠纷的处理,有利于维护医患双方的合法权益,有利 相似文献
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Albert D. Farrell Sally Mays Amie Bettencourt Elizabeth H. Erwin Monique Vulin-Reynolds Kevin W. Allison 《American journal of community psychology》2010,46(1-2):19-35
This qualitative study explored environmental factors that influence adolescents’ responses to problem situations involving peers. Interviews were conducted with 106 middle school students (97% African American) from an urban school system. Participants were asked to describe factors that would make it easier and those that would make it more difficult for adolescents to make specific responses to problem situations. Two types of responses were presented: nonviolent responses identified as effective in a previous study, and fighting responses. Qualitative analysis identified 24 themes representing family, peer, school, and neighborhood and broader social factors that were related to both nonviolent behavior and fighting. The identification of environmental influences on fighting and nonviolent responses has important implications for efforts to reduce aggression and promote effective nonviolent responses to problem situations encountered by adolescents. 相似文献