光坪对同时性闪光信号辨认的影响

問題 如果在构成閃光的相互交替的亮与黑两个时相中,黑时相不是完全黑,而是亮度不同程度的变暗,人們照样能看出閃光。暗时相的光強可以低到零,这就是一般閃光;但其光強也可以象亮时相一样高,那就变成了固定灯光。我們把一切強度的暗时相統称为“光坪”或“坪”,而把亮吋相叫作“光峯”或“峯”。 关于光坪对閃光信号辨认的影响的問題,是有关业务部門提出来的。根据我們的現場調查,使用者对某些带光坪的閃光信号的試用反应良好。我們前一研究表明,在实驗給定条件下,不宜使用两个同时性閃光,作为类似該实驗所用編碼的信号;同时提出“不     

Event knowledge,elaborative propensity,and the development of learning proficiency

An experimental test was made of two hypotheses formulated to account for age differences across adolescence in the learning of arbitrary associations. One hypothesis ascribes such differences to two factors: the propensity to elaborate coherent relationships among initially disparate items, and accessibility to event knowledge that can form the bases of such relationships. The other hypothesis assumes that propensity remains constant across age, and that development stems entirely from increases in the accessibility of relevant event knowledge. These hypotheses are evaluated with reference to the performance of 11- and 17-year-olds in learning relationships among paired nouns. The results discredited both hypotheses, instigating the formulation of a revised conception of the relationship between knowledge and propensity as developmental determinants.     

participating in a couples therapy outcome study: Participants' views

Discovering that participants who received therapy in a research project and were being debriefed in a therapy outcome study considered those assessment sessions therapeutic, the authors conclude that participants: (a) are aware of the research context, (b) have some idea about how it affected the treatment they got, and (c) see positive outcomes for taking part in the study. Assessment and treatment were not separated in the minds of some participants, as they had been in the mind of the researchers.This study was supported in part by National Institute on Drug Abuse grant #1R 18DA 1069232001.     

Quality assurance in the clinical genetics setting—Report of a workshop

Participants in a panel discussion sponsored by thead hoc Quality Assurance Committee of the National Society of Genetic Counselors discuss early efforts to develop and implement quality assurance instruments at institutional, state, and regional levels. Uniform guidelines and self-assessment tools can help genetic counselors and clinical geneticists to provide the best possible care to individuals affected by genetic diseases. Further work will be needed to address aspects not covered here and to assure that guidelines allow for creative variation among professionals and centers. An interdisciplinary approach to such standard-setting is recommended.CGC     

Women's Understanding of Their Risk of Developing Breast/Ovarian Cancer Before and After Genetic Counseling

Many studies have reported that individuals frequently over- or underestimate their risk of developing cancer both before and after they attend genetic counseling for breast and/or ovarian cancer. Using a combination of interviews and written questionnaires, we investigated counselees' understanding of their risk of developing cancer before and after genetic counseling. We demonstrate that although 76% of the sample thought that their risk was elevated relative to women in general, only a small proportion (17%) were willing or able to provide a numerical estimate of their risk of developing cancer before they attended the clinic. Following the consultation, 43% indicated that their risk of developing cancer was lower than they had anticipated. Twenty-two percent described their risk in absolute rather than relative terms, i.e., that they would definitely (not) develop cancer in the future. The implications of these findings for further research are discussed.     

Rhetorical theory and family therapy practice

The study found that a connection exists between rhetoric and therapy because both fields are interested in using language as a tool for generating change. Persuasion is viewed as inherent in human communication, even though people do not necessarily intentionally attempt to persuade others. Following a brief (but detailed) explanation of the theoretical stance which informs the implementation of rhetorical techniques in therapy, three pragmatic exemplars are offered to demonstrate the employment of two classical rhetorical concepts, the parastasis catalogue and syncrisis.The authors are grateful to Sandra Kodner, MS for her participation in the development of this project.     

The nexus between family and work roles of academic women in Israel: Reality and representation

This study examines the relationships between family responsibilities and scientific and scholarly productivity of women in academia. It is commonly believed that faculty women are less productive than their male colleagues because of childbearing and other domestic duties. Though this assumption seems logical, it is not supported by evidence from a growing number of studies including the present. The family-career nexus of faculty women in Israel is examined on two levels: the actual—namely the association between number of children and rates of publications, and the perceptual—the ways in which faculty women perceive and describe the problem. The data show that the presence of children does not reduce research productivity, and that respondents accept their family obligations as matter of fact. The paper attempts to account for the main finding that women with more children do not publish less, but somewhat more than women without children or with one child, and also discusses several explanations that have been forwarded in other studies.     

Training in group-analytic psychotherapy in Europe

Group-analytic psychotherapy focuses on the making and maintaining of close, emotionally fulfilling relationships. Its practitioners attempt to fuse an individual and a whole-group perspective, and seek to provide the enabling conditions for freer communication between group members. The group-analytic approach is widely used in the United Kingdom, and many experiential groups on psychotherapy training courses are conducted on group-analytic lines. The Institute of Group Psychotherapy in London recognizes eight one-year courses in England and Scotland specifically oriented to group-analytic theory and methods. These courses provide an introduction to group psychotherapy to over 300 professionals of varied backgrounds every year. There are also two courses in the United Kingdom that provide a full training in group-analysis and group-analytic psychotherapy, and 11 courses on the continent of Europe. The number of courses is growing and there is now a European Group-Analytic Training Network providing formal links between them. Results of a postal survey indicate that few (10%) attenders at a one-year course have a negative response and that many (85%) recommend the course to colleagues. The efficiency and therefore reduced cost of group teaching and the incorporation of a group experience may be contributing factors to the increasing demand for this type of training.This paper is based on a presentation at an Open Session on Training in Group Psychotherapy: The Quest for a Viable Model at the American Group Psychotherapy Association Annual Meeting, Boston, February 1990. This paper represents the author's own views and is not an official statement of the Institute of Group Analysis [London]. However, members and staff of the Institute have made helpful contributions to the author in preparing it. He is especially grateful for the assistance of Mrs. Liesel Hearst (Chairperson, Overseas Training Sub-Committee, Institute of Group Analysis, London), Dr. Keith Hyde (Convenor, Manchester Course in Group Psychotherapy), Fr. Jim Christie (Convenor, Glasgow Course in Group Psychotherapy), and Dr. Vivienne Cohen (Chairperson, Training Committee, Institute of Group Analysis, London, in preparing this paper. The questionnaire study was conducted with the assistance of the Training Section of the North-Western Regional Health Authority.     

Memories of Mickey Mouse: Young children recount their trip to disneyworld

What young children remember and how long they retain such information are crucial issues for the study of young children's memory. In this research, these issues were examined by asking children who visited Disneyworld at 37 or 49 months of age to recall their experience. Half of the children were interviewed 6 months after their trip, and the remaining children were interviewed after 18 months. Surprisingly, there were no effects for age or retention interval on the amount children recalled; all children recounted a great deal of accurate information about their Disneyworld experience. However, older children's reports were more detailed than younger children's, and older children tended to recall more information spontaneously than did younger children. Finally, there is some suggestion that children who talked about their Disneyworld experience more frequently with their families subsequently recounted more information during the memory interview. Implications for these findings are discussed.